ELECTROCHEMICAL REACTION DEVICE

CROSS REFERENCE TO RELATED APPLICATION

The present application claims priority to Korean Patent Application No. 10-2023-0020224, filed Feb. 15, 2023, the entire contents of which is incorporated herein for all purposes by this reference.

BACKGROUND OF THE INVENTION
Field of the Invention

The present disclosure relates to an electrochemical reaction device that generates products by subjecting a mixed solution inside a reactor to an electrochemical reaction using an electrode part.

Description of the Related Art

An electrochemical reaction device is a device that generates products by putting reactants in a reactor and applying electricity to a mixed solution of reactants.

A generally known electrochemical reaction device is an electrochemical fluorination (ECF) device that produces fluorine compounds. This ECF device mixes reactants and anhydrous hydrogen fluoride liquid in a reactor and then generates a fluorine compound by applying electricity through an electrode part.

In a conventional electrochemical reaction device, electricity is applied to a mixed solution in a reactor through an electrode part, and as a result, products are generated on the surface of an electrode of the electrode part.

As such, since products are generated on the surface of the electrode of the electrode part, the yield of the products is proportional to the area of the electrode part.

However, the conventional electrochemical reaction device is problematic in that since the reactor has a cylindrical shape, it is difficult to provide an electrode with a large area inside the reactor, resulting in low product yield.

In addition, since a stirrer for mixing the mixed solution is provided inside the reactor, there is a limit to the mounting space of the electrode part inside the reactor, making it difficult to increase the product yield.

The foregoing is intended merely to aid in the understanding of the background of the present disclosure, and is not intended to mean that the present disclosure falls within the purview of the related art that is already known to those skilled in the art.

Documents of Related Art

(Patent document 1) Korean Patent No. 10-0281587

SUMMARY OF THE INVENTION

Accordingly, the present disclosure has been made keeping in mind the above problems occurring in the related art, and an objective of the present disclosure is to provide an electrochemical reaction device that can increase the yield of products produced by an electrochemical reaction inside a reactor.

In order to achieve the above objective, according to one aspect of the present disclosure, there is provided an electrochemical reaction device, including: a reactor; a first reactant supply passage supplying a first reactant stored in a first reactant tank to the reactor; a second reactant supply passage supplying a second reactant stored in a second reactant tank to the reactor; an electrode part applying electricity to a mixed solution inside the reactor to react the mixed solution to produce a product; a power supply applying power to the electrode part; a product discharge passage discharging the product produced inside the reactor into a product tank; and a circulation part circulating the mixed solution by allowing the mixed solution to be discharged to an outside of the reactor and then flow back into the reactor so that the mixed solution inside the reactor does not stagnate inside the reactor.

In addition, the electrochemical reaction device may further include: a reactor lid closing an upper surface of the reactor; and a plurality of circulation inlet ports formed through upper and lower surfaces of the reactor lid. The plurality of second circulation passages may communicate with the plurality of circulation inlet ports, respectively.

In addition, the circulation part may further include: a plurality of spray nozzles disposed at a lower portion of the reactor lid, communicating with the plurality of second circulation passages, and each of which having, on a lower surface thereof, a plurality of spray ports through which the circulated mixed solution is sprayed.

In addition, the circulation part may further include: a pressure regulator controlling a spray pressure of the spray nozzles.

In addition, the electrode part may include: a plurality of first electrodes; a plurality of second electrodes arranged alternately with the plurality of first electrodes; and a plurality of washers interposed between the first electrodes and the second electrodes to prevent contact between the first electrodes and the second electrodes.

In addition, the reactor may have a circular cross-section, and at least one of the plurality of first electrodes and at least one of the plurality of second electrodes may have different widths. The widths of the first electrodes and the second electrodes may be the longest in a central area of the electrode part, and the widths of the first electrodes and the second electrodes of the electrode part may become gradually shorter toward left and right sides of the electrode part.

In addition, each of the first electrodes may be provided with a central protrusion protruding upwardly at an upper portion thereof, and each of the second electrodes may be provided with front and rear protrusions protruding upwardly at an upper portion thereof. The front and rear protrusions may be formed in an area where the central protrusion is not formed so that the central protrusion and the front and rear protrusions do not overlap each other. Each of the washers may be interposed between the central protrusion and the front and rear protrusions. The washer and the first and second electrodes may be fastened to each other in such a manner that a first fastening rod is inserted into a central protrusion hole provided at the central protrusion and a central washer hole provided at the washer, a second fastening rod is inserted into a front protrusion hole provided at the front protrusion and a front washer hole provided at the washer, a third fastening rod is inserted into a rear protrusion hole provided at the rear protrusion and a rear washer hole provided at the washer, and a fourth fastening rod is inserted into a first electrode lower hole provided at a lower portion of the first electrode and a second electrode lower hole provided at a lower portion of the second electrode.

In addition, the power supply may apply a positive (+) polarity voltage to the first electrode through the first fastening rod and apply a negative (−) polarity voltage to the second electrode through the second fastening rod.

In addition, wherein the electrode part may include: a plurality of first electrodes; a plurality of second electrodes arranged alternately with the plurality of first electrodes; and a power supply applying power to the first electrodes and the second electrodes. The plurality of first electrodes and the plurality of second electrodes may be moved relative to each other in an up-and-down direction.

In addition, the electrode part may include: a plurality of first electrodes; a plurality of second electrodes arranged alternately with the plurality of first electrodes; and a power supply applying power to the first electrodes and the second electrodes. The plurality of first electrodes and the plurality of second electrodes may be moved relative to each other in such a manner that at least one of the plurality of first electrodes and the plurality of second electrodes is rotated about a center point of the reactor as an axis.

In addition, the electrode part may include: a plurality of first electrodes; and a plurality of second electrodes arranged alternately with the plurality of first electrodes. Each of the first electrodes may be provided with a plurality of electrode spray ports. The circulation part may be connected to the first electrode so that the mixed solution circulated through the circulation part is sprayed into the reactor through the plurality of electrode spray ports.

In addition, the circulation part may include: a branch portion located above the reactor; a first circulation passage communicating a lower portion of the reactor with the branch portion; a plurality of second circulation passages communicating the branch portion with the reactor; and a plurality of spray nozzles located above the first and second electrodes of the electrode part, communicating with the plurality of second circulation passages, each of which having, on a lower surface thereof, a plurality of spray ports through which the circulated mixed solution is sprayed, and formed in a plate shape with a lengthwise direction orthogonal to an up-and-down direction.

In addition, the circulation part may include: a branch portion located above the reactor; a first circulation passage communicating a lower portion of the reactor with the branch portion; a plurality of second circulation passages communicating the branch portion with the reactor; and a plurality of spray nozzles located between the first electrodes and the second electrodes of the electrode part, communicating with the plurality of second circulation passages, formed in a plate shape with a lengthwise direction in an up-and-down direction, and each of which having a plurality of spray ports on each of opposite surfaces thereof facing each of the first electrodes and each of the second electrodes so that the circulated mixed solution is sprayed onto surfaces of the first electrode and the second electrode.

The electrochemical reaction device according to the present disclosure as described above has the following effects.

Without using a separate stirrer inside the reactor, a flow of a mixed solution inside the reactor can be generated by the spray pressure of the mixed solution circulated by the circulation part. Therefore, more space for the first and second electrodes to be installed inside the reactor can be secured, thereby increasing the yield of products.

By forming the shapes of the first and second electrodes to correspond to the shape of the reactor, a large area of the first and second electrodes can be secured, thereby increasing the yield of products.

By moving the first and second electrodes relative to each other, gas remaining between the first and second electrodes generated by an electrochemical reaction can be removed. Therefore, it is possible to prevent an explosion caused by gas.

By providing the spray nozzle that sprays the circulated mixed solution above the electrode part, the mixed solution can be continuously supplied, thereby increasing the yield of products.

The mixed solution is sprayed toward the surfaces of the first and second electrodes, thereby increasing the yield of products.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objectives, features, and other advantages of the present disclosure will be more clearly understood from the following detailed description when taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a front view illustrating an electrochemical reaction device according to the present disclosure;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is an enlarged front view illustrating a reactor and a circulation part of the electrochemical reaction device according to the present disclosure;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a plan view illustrating a reactor lid of the reactor of the electrochemical reaction device according to the present disclosure;

FIG. 6 is a schematic view schematically illustrating passages of the electrochemical reaction device according to the present disclosure;

FIG. 7 is a plan view illustrating an electrode part of the electrochemical reaction device according to the present disclosure;

FIG. 8 is a perspective view of FIG. 7;

FIG. 9 is a front view illustrating that an electrode part according to a first modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor;

FIG. 10 is a front view illustrating relative movement of first and second electrodes illustrated in FIG. 9;

FIG. 11 is a plan view illustrating that an electrode part according to a second modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor;

FIG. 12 is a front view illustrating relative movement of first and second electrodes illustrated in FIG. 11;

FIG. 13 is a front view illustrating that an electrode part according to a third modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor;

FIG. 14 is a plan view illustrating that an electrode part according to a fourth modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor;

FIG. 15 is a plan view illustrating that a spray nozzle according to a first modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor; and

FIG. 16 is a plan view illustrating that a spray nozzle according to a second modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor.

DETAILED DESCRIPTION OF THE INVENTION

Hereinbelow, an exemplary embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. The present disclosure, advantages of the present disclosure, and objectives achieved by the present disclosure will become apparent from the detailed description of the following embodiments in conjunction with the accompanying drawings. The present disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure is thorough and complete and fully conveys the present disclosure to those skilled in the art, and the present disclosure is defined only by the scope of the appended claims. Throughout the specification, the same or like reference numerals designate the same or like elements.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms “a”, “an”, and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes”, and/or “including”, when used herein, specify the presence of stated features, integers, steps, operations, elements, components, and/or combinations thereof but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or combinations thereof.

Embodiments of the inventive concepts are described herein with reference to cross-section and/or plan illustrations that are schematic illustrations of idealized embodiments of the inventive concepts. Further, in the drawings, the thicknesses of films and regions may be exaggerated for effective explanation of technical contents. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the embodiments should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. Thus, regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region of a device and are not intended to limit the scope of the present disclosure.

Wherever possible, the same reference numerals will be used throughout different embodiments and the description to refer to the same or like elements or parts. In addition, the configuration and operation already described in other embodiments will be omitted for convenience.

Hereinafter, an electrochemical reaction device 10 according to the present disclosure will be described with reference to FIGS. 1 to 8.

FIG. 1 is a front view illustrating an electrochemical reaction device according to the present disclosure. FIG. 2 is a side view of FIG. 1. FIG. 3 is an enlarged front view illustrating a reactor and a circulation part of the electrochemical reaction device according to the present disclosure. FIG. 4 is a side view of FIG. 3. FIG. 5 is a plan view illustrating a reactor lid of the reactor of the electrochemical reaction device according to the present disclosure. FIG. 6 is a schematic view schematically illustrating passages of the electrochemical reaction device according to the present disclosure. FIG. 7 is a plan view illustrating an electrode part of the electrochemical reaction device according to the present disclosure. FIG. 8 is a perspective view of FIG. 7.

As illustrated in FIGS. 1 to 8, an electrochemical reaction device 10 according to the present disclosure may include a reactor 100; a first reactant tank 200 storing a first reactant; a first reactant supply passage 210 supplying the first reactant stored in the first reactant tank 200 to the reactor 100; a second reactant tank 300 storing a second reactant; a second reactant supply passage 310 supplying the second reactant stored in the second reactant tank 300 to the reactor 100; a purge gas supply passage 400 supplying a purge gas to the reactor 100; an electrode part 500 generating a fluorine compound by electrically synthesizing a mixed solution inside the reactor 100; a condenser 600 condensing and recovering the first or second reactant vaporized in the reactor 100; a product tank 700 storing a product generated inside the reactor 100; a product discharge passage 710 discharging the product generated inside the reactor 100 into the product tank 700; a circulation part 800 circulating the mixed solution by allowing it to be discharged to the outside of the reactor 100 and then flow back to the inside of the reactor 100 so that the mixed solution inside the reactor 100 is prevented from stagnating inside the reactor 100; and a power supplier 550 applying power to the electrode part 500.

First Reactant Tank 200 and Second Reactant Tank 300

Hereinafter, the first reactant tank 200 and the second reactant tank 300 will be described.

The first reactant tank 200 stores the first reactant therein.

The first reactant supply passage 210 communicates the first reactant tank 200 with the reactor 100. In detail, a first end of the first reactant supply passage 210 communicates with the first reactant tank 200, and a second end thereof communicates with a first reactant supply port 111 provided on a reactor lid 110 of the reactor 100. In this case, the first reactant supply port 111 is formed through upper and lower surfaces of the reactor lid 110.

A first pump (not illustrated) is provided on the first reactant supply passage 210.

In order for the first reactant to easily flow into the reactor 100 by pumping of the first pump, the first reactant is preferably stored in liquefied form inside the first reactant tank 200.

The liquefied first reactant flows from the first reactant tank 200 into the reactor 100 along the first reactant supply passage 210 by pumping of the first pump.

Since the liquefied first reactant is supplied into the reactor 100 through the first reactant supply port 111, it is supplied from an upper portion to a lower portion of the reactor 100.

Unlike the above, when the first reactant is in a gaseous state rather than a liquefied state, a separate pump may not be provided on the first reactant supply passage 210. In this case, only the pressure inside the first reactant tank 200 due to the gasified first reactant causes the first reactant inside the first reactant tank 200 to flow into the reactor 100 through the first reactant supply passage 210.

When the first reactant stored in the first reactant tank 200 is a gas, after the first reactant is supplied to the reactor 100, the purge gas may flow into the reactor 100 through the purge gas supply passage 400. Afterwards, the first reactant inside the reactor 100 is cooled through a reactor cooler 130 provided in the reactor 100 to liquefy the first reactant. Moisture may be removed from the liquefied first reactant by applying a low voltage through the electrode part 500.

The second reactant tank 300 stores the second reactant therein.

The second reactant supply passage 310 communicates the second reactant tank 300 with the reactor 100. In detail, a first end of the second reactant supply passage 310 communicates with the second reactant tank 300, and a second end thereof communicates with a second reactant supply port 117 provided on a side surface of the reactor 100.

A second pump 320 is provided on the second reactant supply passage 310.

In order for the second reactant to easily flow into the reactor 100 by pumping of the second pump 320, the second reactant is preferably stored in liquefied form inside the second reactant tank 300.

The liquefied second reactant flows from the second reactant tank 300 into the reactor 100 along the second reactant supply passage 310 by pumping of the second pump 320.

Since the liquefied second reactant is supplied into the reactor 100 through the second reactant supply port 117 provided on the side surface of the reactor 100, it is supplied from a first side to a second side of the reactor 100.

Unlike the above, when the second reactant is in a gaseous state rather than a liquefied state, a separate pump may not be provided on the second reactant supply passage 310. In this case, only the pressure inside the second reactant tank 300 due to the gasified second reactant causes the second reactant inside the second reactant tank 300 to flow into the reactor 100 through the second reactant supply passage 310.

When the second reactant stored in the second reactant tank 300 is a gas, after the second reactant is supplied to the reactor 100, the purge gas may flow into the reactor 100 through the purge gas supply passage 400. Afterwards, the second reactant inside the reactor 100 is cooled through the reactor cooler 130 provided in the reactor 100 to liquefy the second reactant. Moisture may be removed from the liquefied second reactant by applying a low voltage through the electrode part 500.

Reactor 100

Hereinafter, the reactor 100 will be described.

The reactor 100 functions to provide a space where the mixed solution is electrically reacted and synthesized.

The reactor 100 communicates with the first reactant tank 200 through the first reactant supply passage 210.

The reactor 100 communicates with the second reactant tank 300 through the second reactant supply passage 310.

The reactor 100 communicates with the condenser 600 through a condenser discharge passage 610 and a condenser recovery passage 620.

The mixed solution inside the reactor 100 is taken out of the reactor 100 through a first circulation passage 820, a branch portion 810, and a second circulation passage 830, and then introduced back into the reactor 100 for circulation.

The electrode part 500 is provided inside the reactor 100.

The reactor 100 communicates with the product tank 700 through the product discharge passage 710.

The reactor lid 110 is provided at the upper portion of the reactor 100.

The upper portion of the reactor 100 is closed by the reactor lid 110.

The reactor lid 110 has the first reactant supply port 111, a purge gas supply port 112, a condenser outlet port 113, a condenser recovery port 114, and a plurality of circulation inlet ports 115.

The first reactant supply port 111, the purge gas supply port 112, the condenser outlet port 113, the condenser recovery port 114, and the plurality of circulation inlet ports 115 are formed through the upper and lower surfaces of the reactor lid 110.

The second reactant supply port 117 is provided on the side surface of the reactor 100. The second reactant supply passage 310 communicates with the second reactant supply port 117.

A reactor cooler outlet port 131 and a reactor cooler recovery port 132 are provided on a rear surface of the reactor 100.

A first end of a reactor cooler discharge passage 136 communicates with the reactor cooler outlet port 131, and a second end of the reactor cooler discharge passage 136 communicates with the reactor cooler 130.

A first end of a reactor cooler recovery passage 137 communicates with the reactor cooler recovery port 132, and a second end of the reactor cooler recovery passage 137 communicates with the reactor cooler 130.

A cooler valve (not illustrated) that opens and closes the reactor cooler discharge passage 136 is provided on the reactor cooler discharge passage 136. When the cooler valve is opened, the gaseous first or second reactant inside the reactor 100 flows into the reactor cooler 130 through the reactor cooler discharge passage 136 and is then cooled and liquefied. Afterwards, the liquefied first or second reactant is returned to the reactor 100 through the reactor cooler recovery passage 137.

A circulation part outlet port 141 and a product outlet port 151 are provided at the lower portion of the reactor 100, that is, the bottom of the reactor 100.

The circulation part outlet port 141 communicates with the first circulation passage 820 of the circulation part 800.

The product discharge passage 710 communicates with the product outlet port 151. Therefore, the product is stored in the product tank 700 through the product outlet port 151 and the product discharge passage 710.

The reactor 100 is provided with a level gauge 160. The level gauge 160 functions to check the amount of mixed solution inside the reactor 100.

Purge Gas Supply Passage 400 and Condenser 600

Hereinafter, the purge gas supply passage 400 and the condenser 600 will be described.

The purge gas supply passage 400 functions to allow the purge gas supplied from an external purge gas source to flow into the reactor 100. In this case, the purge gas supply passage 400 communicates with the purge gas supply port 112 formed through the upper and lower surfaces of the reactor lid 110 of the reactor 100.

The condenser 600 functions to liquefy and recover materials vaporized inside the reactor 100.

When the first or second reactant inside the reactor 100 is vaporized, the vaporized first or second reactant flows into the condenser 600 through the condenser outlet port 113 provided on the reactor lid 110 and the condenser discharge passage 610 in communication with the condenser outlet port 113. Afterwards, the first or second reactant cooled and liquefied through a cooler of the condenser 600 is recovered from the condenser 600 to the reactor 100 through the condenser recovery passage 620 and the condenser recovery port 114, and the first or second reactant remaining as residual gas is discharged to a condenser gas discharge part (not illustrated) in communication with the condenser 600.

Circulation Part 800

Hereinafter, the circulation part 800 will be described.

The circulation part 800 functions to allow the mixed solution inside the reactor 100 to be discharged to the outside of the reactor 100 and then flow back into the reactor 100.

The circulation part 800 may include the branch portion 810 located above the reactor 100; the first circulation passage 820 communicating the lower portion of the reactor 100 with the branch portion 810; a plurality of second circulation passages 830 communicating the branch portion 810 with the reactor 100; a circulation pump 840 provided on the first circulation passage 820 and circulating the mixed solution inside the reactor 100 sequentially through the first circulation passage 820, the branch portion 810, and the plurality of second circulation passages 830 to flow into the reactor 100; and a plurality of spray nozzles 850 disposed at a lower portion of the reactor lid 110, communicating with the plurality of second circulation passages 830, and each of which having, on a lower surface thereof, a plurality of spray ports 851 through which the circulated mixed solution is sprayed.

The branch portion 810 is located above the reactor 100 and functions as a hub for branching the first circulation passage 820 into the plurality of second circulation passages 830.

The first circulation passage 820 communicates with an upper portion of the branch portion 810.

In the present disclosure, as an example, the plurality of second circulation passages 830 are provided as five. In this case, the five second circulation passages 830 communicate with front, rear, left, right, and lower sides of the branch portion 810, respectively.

A first end of the first circulation passage 820 communicates with the circulation part outlet port 141 formed at the lower portion of the reactor 100, that is, the bottom of the reactor 100, and a second end thereof communicates with the upper portion of the branch portion 810.

A first end of each of the plurality of second circulation passages 830 communicates with each of the front, rear, left, right, and lower sides of the branch portion 810, and a second end of each of the plurality of second circulation passages communicates with each of the plurality of circulation inlet ports 115 provided on the reactor lid 110.

The second end of each of the plurality of second circulation passages 830 communicates with each of the plurality of spray nozzles 850.

Each of the plurality of circulation inlet ports 115 may communicate the second end of each of the plurality of second circulation passages 830 with each of the plurality of spray nozzles 850.

On the contrary, the second end of each of the plurality of second circulation passages 830 may directly communicate with each of the plurality of spray nozzles 850, and an area where each of the plurality of second circulation passages 830 and each of the plurality of spray nozzles 850 communicate with each other may be located within each of the plurality of circulation inlet ports 115.

The plurality of spray ports 851 are provided on the lower surface of each of the plurality of spray nozzles 850.

The plurality of spray nozzles 850 are located above a first electrode 510 and a second electrode 520 of the electrode part 500.

When the circulation pump 840 is operated, the mixed solution inside the reactor 100 is discharged to the circulation outlet port 141 at the bottom of the reactor 100 and then flows into the branch portion 810 through the first circulation passage 820.

The mixed solution flowing into the branch portion 810 is branched by the branch portion 810 and then flows to the plurality of spray nozzles 850 through the plurality of second circulation passages 830.

The circulating solution flowing through the plurality of spray nozzles 850 is sprayed into the interior of the reactor 100 through the plurality of spray ports 851. In this case, the sprayed mixed solution is sprayed from above the first electrode 510 and the second electrode 520.

As described above, since the mixed solution is circulated through the circulation part 800 and sprayed back into the reactor 100, the mixed solution inside the reactor 100 does not stagnate but flows continuously. Therefore, the flow of the mixed solution occurs without the help of a separate stirrer, so the electrical reaction of the mixed solution is facilitated.

A pressure regulator (not illustrated) functions to control the spray pressure of the spray nozzles 850.

The pressure regulator may control the intensity of the flow of the mixed solution inside the reactor 100 by increasing the pressure of the mixed solution sprayed from the spray nozzles 850. That is, when the synthesis efficiency by electrical reaction is reduced due to stagnation of the mixed solution, the pressure of the mixed solution sprayed from the spray nozzles 850 is increased to increase the flow of the mixed solution inside the reactor 100, thereby further promoting synthesis through the electrical reaction of the mixed solution.

Electrode Part 500

Hereinafter, the electrode part 500 will be described with reference to FIGS. 1 and 6 to 8.

The electrode part 500 is provided inside the reactor 100.

The electrode part 500 may include a plurality of first electrodes 510; a plurality of second electrodes 520 arranged alternately with the plurality of first electrodes 510; and a plurality of washers 530 interposed between the plurality of first electrodes 510 and the plurality of second electrodes 520 to prevent contact between the first electrodes 510 and the second electrodes 520.

A positive (+) polarity voltage is applied to a first electrode 510 by the power supply 550.

A negative (−) polarity voltage is applied to a second electrode 520 by the power supply 550.

The first electrode 510 and the second electrode 520 are provided in plural, and the plurality of first electrodes 510 and the plurality of second electrodes 520 are arranged alternately.

The first electrodes 510 and the second electrodes 520 have a plate shape.

In the present disclosure, each of the first electrodes 510 and the second electrodes 520 has a length in the up-and-down direction, a width in the front-and-rear direction, and a thickness in the left-and-right direction.

That is, the up-and-down direction length of each of the first electrodes 510 and the second electrodes 520 is longer than the left-and-right direction length of each of the first electrodes 510 and the second electrodes 520.

A central protrusion 511 is provided at an upper portion of each of the first electrodes 510.

The central protrusion 511 protrudes upwardly from the center of the first electrode 510.

The width of the central protrusion 511 is smaller than that of the first electrode 510.

The central protrusion 511 is provided with two central protrusion holes (not indicated by reference numerals).

Two first electrode lower holes (not indicated by reference numerals) are provided at a lower portion of each of the first electrodes 510.

A front protrusion 521 and a rear protrusion 522 are provided at an upper portion of each of the second electrodes 520.

The front protrusion 521 protrudes upwardly from a front side of the second electrode 520, and the rear protrusion 522 protrudes upwardly from a rear side of the second electrode 520.

The width of each of the front protrusion 521 and the rear protrusion 522 is smaller than that of the second electrode 520.

The front protrusion 521 and the rear protrusion 522 are formed in an area where the central protrusion 511 of the first electrode 510 is not formed. Therefore, the central protrusion 511, the front protrusion 521, and the rear protrusion 522 do not overlap each other. In this case, the sum of the widths of the front protrusion 521, the rear protrusion 522, and the central protrusion 511 are the same as the width of the first electrode 510 or the width of the second electrode 520.

The up-and-down protruding lengths of the central protrusion 511, the front protrusion 521, and the rear protrusion 522 are the same.

The front protrusion 521 is provided with a front protrusion hole (not indicated by reference numerals), and the rear protrusion 522 is provided with a rear protrusion hole (not indicated by reference numerals).

Two second electrode lower holes (not indicated by reference numerals) are provided at a lower portion of each of the second electrodes 520. In this case, the second electrode lower holes are formed at position corresponding to the first electrode lower holes.

The first electrodes 510 and the second electrodes 520 are arranged alternately in the left-and-right direction. In this case, a washer 530 is interposed between each of the first electrodes 510 and each of the second electrodes 520.

The washer 530 is interposed between the first electrode 510 and the second electrode 520 and functions to prevent contact between the first electrode 510 and the second electrode 520.

The washer 530 is made of a non-conductive material and prevents a short-circuit from occurring when the first electrode 510 and the second electrode 520 come into contact with each other.

The washer 530 has the same width as the first electrode 510 and the second electrode 520, but has a shorter up-and-down direction length than the first electrode 510 and the second electrode 520.

The washer 530 is interposed between the central protrusion 511 of the first electrode 510 and the front protrusion 521 and the rear protrusion 522 of the second electrode 520.

The washer 530 is provided in plural.

The up-and-down direction length of each of the plurality of washers 530 is same as the up-and-down protruding length of each of the central protrusion 511, the front protrusion 521, and the rear protrusion 522.

The washer 530 is provided with two central washer holes (not indicated by reference numerals) at positions corresponding to the two central protrusion holes, a front washer hole (not indicated by reference numerals) at a position corresponding to the front protrusion holes, and a rear washer hole (not indicated by reference numerals) at a position corresponding to the rear protrusion hole.

A first fastening rod 560 is inserted into each of the two central protrusion holes and the two central washer holes, a second fastening rod 570 is inserted into the front protrusion hole and the front washer hole, and a third fastening rod 580 is inserted into the rear protrusion hole and the rear washer hole, whereby the washer 530, the first electrode 510, and the second electrode 520 are fastened to each other. In this case, two first fastening rods 560 are provided.

A fourth fastening rod 590 is inserted into each of the two first electrode lower holes of the first electrode 510 and the two second electrode lower holes of the second electrode 520, whereby the first electrode 510 and the second electrode 510 are fastened to each other. In this case, two fourth fastening rods 590 are provided.

Since the central protrusion 511, the front protrusion 521, and the rear protrusion 522 do not overlap each other, the first fastening rods 560 couple only the first electrode 510 and the washer 530 to each other. Therefore, the power supply 550 may apply only the positive (+) polarity voltage to the first fastening rods 560.

In detail, the first fastening rods 560 are connected to a first electrode connection portion 551 provided on the reactor lid 110, and the power supply 550 is connected to the first electrode connection portion 551 and applies the positive (+) polarity voltage to the first electrode connection portion 551.

Since the central protrusion 511, the front protrusion 521, and the rear protrusion 522 do not overlap each other, the second fastening rod 570 and the third fastening rod 580 couple only the second electrode 520 and the washer 530 to each other. Therefore, the power supply 550 may apply only the negative (−) polarity voltage to the second fastening rod 570 and the third fastening rod 580.

In detail, the second fastening rod 570 and the third fastening rod 580 are connected to a second electrode connection portion 552 provided on the reactor lid 110, and the power supply 550 is connected to the second electrode connection portion 552 and applies the negative (−) polarity voltage to the second electrode connection portion 552.

The reactor 100 has a circular cross-section.

The electrode part 500 has a shape corresponding to the shape of the reactor 100. Therefore, the first electrodes 510 and the second electrodes 520 of the electrode part 500 have the longest front-and-rear direction lengths, that is, the longest widths, in the central area of the electrode part 500 with respect to a left-and-right center line, the front-and-rear direction lengths, and the widths of the first electrodes 510 and the second electrodes 520 become gradually shorter toward the left and right sides of the electrode part 500.

In other words, in order for the first electrodes 510 and the second electrodes 520 of the electrode part 500 to have a shape corresponding to the shape of the reactor 100 having a circular cross-section, the first electrodes 510 and the second electrodes 520 have different widths, the widths of the first electrodes 510 and the second electrodes 520 are the longest in the central area of the electrode part 500, and the widths of the first electrodes 510 and the second electrodes 520 become gradually shorter toward the left and right sides of the electrode part 500.

In this case, a part of the plurality of first electrodes 510 and a part of plurality of second electrodes 520 may have the same width. Therefore, at least one of the plurality of first electrodes 510 and at least one of the plurality of second electrodes 520 have different widths.

It is preferable that the lengths of the first electrodes 510 and the second electrodes 520 are formed such that the first electrodes 510 and the second electrodes 520 have symmetrical shapes with respect to the left-and-right center line of the electrode part 500.

As described above, due to the shapes of the first electrodes 510 and the second electrodes 520, a maximum number of first electrodes 510 and second electrodes 520 can be disposed in the reactor 100 having a circular cross-section, thereby ensuring high yield of products.

In detail, when the mixed solution inside the reactor 100 generates a product through an electrochemical reaction through the electrode part 500, the product is formed on surfaces of the first electrodes 510 and the second electrodes 520. Therefore, the areas of the first electrodes 510 and the second electrodes 520 are proportional to the yield of the product. Therefore, by disposing as many first electrodes 510 and second electrodes 520 as possible, the yield of the product can be increased.

Process of Producing Product in Electrochemical Reaction Device 10

Hereinafter, the process of producing a product in the electrochemical reaction device 10 according to the present disclosure will be described in detail.

In the following description, as an example, the first reactant is anhydrous hydrogen fluoride (AHF), the second reactant is a fluorinable material, and the purge gas is nitrogen (N₂). In this case, the electrochemical reaction device 10 is an electrochemical fluorination (ECF) device that electrochemically produces a fluorine-based compound.

Anhydrous hydrogen fluoride (AHF) is stored in a gaseous state in the first reactant tank 200, and the second reactant is stored in a liquid state in the second reactant tank 300.

When the valve of the first reactant supply passage 210 is opened, the anhydrous hydrogen fluoride (AHF) is supplied into the reactor 100 by the pressure inside the first reactant tank 200.

After the anhydrous hydrogen fluoride (AHF) flows into the reactor 100, nitrogen (N₂) is supplied into the reactor 100 through the purge gas supply passage 400, thereby reducing moisture inside the anhydrous hydrogen fluoride (AHF).

The anhydrous hydrogen fluoride (AHF) flowing into the reactor 100 is cooled by flowing sequentially through the reactor cooler discharge passage 136, the reactor cooler 130, and the reactor cooler recovery passage 137, and becomes liquefied.

Afterwards, the power supply 550 of the electrode part 500 applies low voltage power to the first electrodes 510 and the second electrodes 520, thereby removing moisture from the anhydrous hydrogen fluoride (AHF).

The liquefied second reactant stored inside the second reactant tank 300 is supplied into the reactor 100 through the first reactant supply passage 210 by pumping of the second pump 320.

When the second reactant is supplied into the reactor 100, it is mixed with the liquefied anhydrous hydrogen fluoride (AHF) to form a mixed solution.

For smooth mixing of the mixed solution, the circulation part 800 is operated.

As the circulation pump 840 is operated, the mixed solution inside the reactor 100 flows sequentially through the first circulation passage 820 and the branch portion 810, and then flows to the plurality of spray nozzles 850 through the plurality of second circulation passages 830. The mixed solution flowing to the plurality of spray nozzles 850 is recirculated and sprayed back into the reactor 100 through the plurality of spray nozzles 851, thereby facilitating mixing of the mixed solution in the reactor 100.

When the power supply 550 of the electrode part 500 applies the positive (+) polarity voltage and the negative (−) polarity voltage to the first electrodes 510 and the second electrodes 520, respectively, an electrochemical reaction occurs inside the reactor 100.

A product composed of a fluorine-based compound is generated on the surfaces of the first electrodes 510 and the second electrodes 520 through the electrochemical reaction.

Since the mixed solution is continuously circulated by the circulation part 800, the product is continuously produced without stagnation.

The anhydrous hydrogen fluoride (AHF) and/or the second reactant vaporized by reaction heat of the reactor 100 flows into the condenser 600 through the condenser discharge passage 610. Afterwards, the anhydrous hydrogen fluoride (AHF) and/or the second reactant cooled and liquefied in the condenser 600 is recovered back into the reactor 100 through the condenser recovery passage 620.

The product generated inside the reactor 100 sinks to the bottom of the reactor 100 due to a density difference and flows into the product tank 700 through the product discharge passage 710.

In the product tank 700, the anhydrous hydrogen fluoride (AHF) contained in the product may be removed using a KOH solution or the like.

The fluorine-based compound, which is a product generated in the electrochemical reaction device 10, may be processed into nitrogen trifluoride (NF₃), which is used in semiconductor and display processes, through fractional distillation in a distillation tower.

Electrode Part 500a According to First Modified Example

Hereinafter, the electrode part 500a according to the first modified example of the electrochemical reaction device according to the present disclosure will be described with reference to FIGS. 9 and 10.

FIG. 9 is a front view illustrating that the electrode part according to the first modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor. FIG. 10 is a front view illustrating relative movement of first and second electrodes illustrated in FIG. 9.

The electrode part 500a according to the first modified example includes a plurality of first electrodes 510a provided inside a reactor 100, and a plurality of second electrodes 520a arranged alternately with the plurality of first electrodes 510a. The plurality of first electrodes 510a and the plurality of second electrodes 520a are relatively movable in the up-and-down direction.

A positive (+) polarity voltage is applied to a first electrode 510a by a power supply 550.

A negative (−) polarity voltage is applied to a second electrode 520a by the power supply 550.

The first electrode 510a and the second electrode 520a are provided in plural, and the plurality of first electrodes 510a and the plurality of second electrodes 520a are arranged alternately.

The first electrodes 510a and the second electrodes 520a have a plate shape.

Each of the first electrodes 510a and the second electrodes 520a has a length in the up-and-down direction, a width in the front-and-rear direction, and a thickness in the left-and-right direction.

That is, the up-and-down direction length of each of the first electrodes 510a and the second electrodes 520a is longer than the left-and-right direction length of each of the first electrodes 510a and the second electrodes 520a.

The plurality of first electrodes 510a are fastened to each other by a first fastening rod 560.

The first fastening rod 560 fastens lower portions of the plurality of first electrodes 510a to each other.

The plurality of second electrodes 520a are fastened to each other by a second fastening rod 570.

The second fastening rod 570 fastens upper portions of the plurality of second electrodes 520a to each other.

The plurality of first electrodes 510a are fixed inside the reactor 100, and the plurality of second electrodes 520a are movable upwardly inside the reactor 100.

That is, while the plurality of first electrodes 510a are positioned in place, and the plurality of second electrodes 520a are raised so that the plurality of first electrodes 510a and the plurality of second electrodes 520a are movable relative to each other in the up-and-down direction.

Since the first fastening rod 560 fastens the lower portions of the plurality of first electrodes 510a and the second fastening rod 570 fastens the upper portions of the plurality of second electrodes 520a, when the plurality of second electrodes 520a are raised, they are not interfered with by the first fastening rod 560.

Unlike the above, in the electrode part 500a, the plurality of first electrodes 510a may be fixed, and the plurality of second electrodes 520a may be lowered, that is, moved downwardly.

In addition, the plurality of second electrodes 520a may be fixed, and the plurality of first electrodes 510a may be moved upwardly or downwardly.

As described above, as the plurality of first electrodes 510a and the plurality of second electrodes 520a of the electrode part 500a according to the first modified example are provided to be relatively movable, the following effects are achieved.

As described above, since the yield of the product is proportional to the area of the first electrodes 510a and the second electrodes 520a, the first electrodes 510a and the second electrodes 520a are densely packed inside the reactor 100. Therefore, the spaces between the plurality of first electrodes 510a and the plurality of second electrodes 520a are formed to be very narrow.

As described above, due to the narrow spaces between the plurality of first electrodes 510a and the plurality of second electrodes 520a, a large amount of gas generated by the electrochemical reaction remains between the plurality of first electrodes 510a and the plurality of second electrodes 520a. Therefore, there is a possibility of an explosion caused by this gas during maintenance of the electrode part 500a.

In the case of the electrode part 500a according to the first modified example, since the plurality of first electrodes 510a and the plurality of second electrodes 520a are relatively movable, the spaces between the plurality of first electrodes 510a and the plurality of second electrodes 520a becomes widened during maintenance, thereby allowing the gas remaining between the plurality of first electrodes 510a and the plurality of second electrodes 520a to easily escape. As a result, it is possible to effectively prevent an explosion caused by gas during maintenance.

Electrode Part 500b According to Second Modified Example

Hereinafter, the electrode part 500b according to the second modified example of the electrochemical reaction device according to the present disclosure will be described with reference to FIGS. 11 and 12.

FIG. 11 is a plan view illustrating that the electrode part according to the second modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor. FIG. 12 is a front view illustrating relative movement of first and second electrodes illustrated in FIG. 11.

The electrode part 500b according to the second modified example includes a plurality of first electrodes 510b provided inside a reactor 100, and a plurality of second electrodes 520b arranged alternately with the plurality of first electrodes 510b. The plurality of first electrodes 510b and the plurality of second electrodes 520b are relatively movable in such a manner that at least one of the plurality of first electrodes 510b and the plurality of second electrodes 520b is rotated.

A positive (+) polarity voltage is applied to a first electrode 510b by a power supply 550.

A negative (−) polarity voltage is applied to a second electrode 520b by the power supply 550.

The first electrode 510b and the second electrode 520b are provided in plural, and the plurality of first electrodes 510b and the plurality of second electrodes 520b are arranged alternately.

The first electrodes 510b and the second electrodes 520b have a semicircular shape with a curvature.

The plurality of first electrodes 510b are fixed inside the reactor 100, and the plurality of second electrodes 520b are rotatable inside the reactor 100 about the center point of the reactor 100.

As described above, as the plurality of second electrodes 520b are rotated, the plurality of first electrodes 510a and the plurality of second electrodes 520b are relatively movable by rotation.

Unlike the above, the plurality of second electrodes 520a may be fixed and the plurality of first electrodes 510a may be rotated.

In addition, the first electrodes 510b and the second electrodes 520b may have an arc shape with a curvature, and the arc shape may have an included angle larger than a semicircle or an included angle smaller than a semicircle. In this case, in order to minimize the overlap between the first electrodes 510b and the second electrodes 520b when they are rotated relative to each other, the included angle of the arc is preferably equal to or less than 270 degrees.

The electrode part 500b according to the second modified example has the following effects.

Since the plurality of first electrodes 510b and the plurality of second electrodes 520b are provided to be relatively movable by rotation, it is possible to prevent an explosion caused by residual gas during maintenance.

In addition, when the plurality of second electrodes 520b are rotated 180 degrees, the plurality of first electrodes 510b are no longer located between the plurality of second electrodes 520b, so residual gas between the plurality of first electrodes 510b and residual gas between the plurality of second electrodes 520b can be more easily removed.

Electrode Part 500c According to Third Modified Example

Hereinafter, the electrode part 500c according to the third modified example of the electrochemical reaction device according to the present disclosure will be described with reference to FIG. 13.

FIG. 13 is a front view illustrating that the electrode part according to the third modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor.

The electrode part 500c according to the third modified example includes a plurality of first electrodes 510c provided inside a reactor 100, and a plurality of second electrodes 520c arranged alternately with the plurality of first electrodes 510c. The plurality of first electrodes 510c and the plurality of second electrodes 520c are relatively movable in the up-and-down direction. Each of the plurality of first electrodes 510c is provided with a plurality of electrode spray ports 517 communicating with a circulation part 800c.

The electrode part 500c according to the third modified example remains the same as the above-described electrode part 500a according to the first modified example, except that the plurality of first electrodes 510c are provided with the electrode spray ports 517. Therefore, descriptions of the same components are omitted.

Each of the plurality of first electrodes 510c may be provided with an electrode spray port 517 through which a mixed solution that is discharged from the inside of the reactor 100 and circulated back into the reactor 100 is sprayed.

A plurality of electrode spray ports 517 may be provided along the lengthwise direction of the first electrode 510c. In addition, a plurality of electrode spray ports 517 may be provided along the widthwise direction of the first electrode 510c. Therefore, the electrode spray ports 517 may be provided in a matrix form with rows and columns.

The inside of the first electrode 510c may be empty to allow fluid to flow. That is, a first electrode space 515 may be formed inside the first electrode 510c.

The plurality of first electrodes 510c may be fastened to each other by a first fastening rod 560. The inside of the first fastening rod 560 may be empty to allow fluid to flow. That is, a first fastening rod space 561 may be formed inside the first fastening rod 560.

A power supply 550 may apply only a positive (+) polarity voltage to the plurality of first electrodes 510c through the first fastening rod 560. Therefore, the first fastening rod 560 may perform all the functions of fastening the plurality of first electrodes 510c to each other, serving as a passage for fluid to flow, and applying power.

The circulation part 800c may include a first circulation passage 820 communicating with a circulation part outlet port 141 formed at the bottom of the reactor 100. The first circulation passage 820 communicates with the first fastening rod 560.

A circulation pump 840 may be provided on the first circulation passage 820. Therefore, when the circulation pump 840 is operated, the mixed solution inside the reactor 100 flows through the first fastening rod space 561 of the first fastening rod 560 along the first circulation passage 820 and is then branched to flow into the first electrode space 515 of each of the plurality of first electrodes 510c. Afterwards, the mixed solution circulated through the plurality of electrode spray ports 517 is sprayed into the reactor 100.

The mixed solution sprayed into the reactor 100 is sprayed toward surfaces of the second electrodes 520c. This creates a flow of the mixed solution near the surfaces of the first electrodes 510c and the second electrodes 520c during electrochemical reaction, resulting in products with a higher yield.

Electrode Part 500d According to Fourth Modified Example

Hereinafter, the electrode part 500d according to the fourth modified example of the electrochemical reaction device according to the present disclosure will be described with reference to FIG. 14.

FIG. 14 is a plan view illustrating that the electrode part according to the fourth modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor.

The electrode part 500d according to the fourth modified example includes a plurality of first electrodes 510d provided inside a reactor 100, and a plurality of second electrodes 520d arranged alternately with the plurality of first electrodes 510d. The plurality of first electrodes 510d and the plurality of second electrodes 520d are relatively movable in such a manner that at least one of the plurality of first electrodes 510d and the plurality of second electrodes 520d is rotated. Each of the plurality of first electrodes 510d is provided with a plurality of electrode spray ports 517 communicating with a circulation part 800d.

The electrode part 500d according to the fourth modified example remains the same as the above-described electrode part 500b according to the second modified example, except that the plurality of first electrodes 510d are provided with the electrode spray ports 517. Therefore, descriptions of the same components are omitted.

Each of the plurality of first electrodes 510d may be provided with an electrode spray port 517 through which a mixed solution that is discharged from the inside of the reactor 100 and circulated back into the reactor 100 is sprayed.

A plurality of electrode spray ports 517 may be provided along the direction of curvature of the first electrode 510d. In addition, a plurality of electrode spray ports 517 may be provided along the widthwise direction of the first electrode 510d. Therefore, the electrode spray ports 517 may be provided in a matrix form with rows and columns.

The inside of the first electrode 510d may be empty to allow fluid to flow. That is, a first electrode space 515 may be formed inside the first electrode 510d.

The plurality of first electrodes 510d may be fastened to each other by a first fastening rod (not illustrated). The inside of the first fastening rod may be empty to allow fluid to flow. That is, a first fastening rod space (not illustrated) may be formed inside the first fastening rod.

A power supply 550 may apply only a positive (+) polarity voltage to the plurality of first electrodes 510d through the first fastening rod. Therefore, the first fastening rod may perform all the functions of fastening the plurality of first electrodes 510d to each other, serving as a passage for fluid to flow, and applying power.

The circulation part 800d may include a first circulation passage 820 communicating with a circulation part outlet port 141 formed at the bottom of the reactor 100. The first circulation passage 820 communicates with the first fastening rod.

A circulation pump 840 may be provided on the first circulation passage 820. Therefore, when the circulation pump 840 is operated, the mixed solution inside the reactor 100 flows through the first fastening rod space of the first fastening rod along the first circulation passage 820 and is then branched to flow into the first electrode space 515 of each of the plurality of first electrodes 510d. Afterwards, the mixed solution circulated through the plurality of electrode spray ports 517 is sprayed into the reactor 100.

The mixed solution sprayed into the reactor 100 is sprayed toward surfaces of the second electrodes 520d. This creates a flow of the mixed solution near the surfaces of the first electrodes 510d and the second electrodes 520d during electrochemical reaction, resulting in products with a higher yield.

Spray Nozzle 850a According to First Modified Example

Hereinafter, the spray nozzle 850a according to the first modified example of the electrochemical reaction device of the present disclosure will be described with reference to FIG. 15.

FIG. 15 is a plan view illustrating that the spray nozzle according to the first modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor.

A circulation part 800 may include a first circulation passage 820 communicating with a circulation outlet port 141 provided at the bottom of the reactor 100; a branch portion 810 communicating with the first circulation passage 820; a second circulation passage 830 communicating the branch portion 810 with the spray nozzle 850a; and a circulation pump 840 provided on the first circulation passage 820.

The spray nozzle 850a according to the first modified example communicates with the second circulation passage 830 of the circulation part 800.

The spray nozzle 850a is formed long to have a length in a direction orthogonal to the up-and-down direction, and is provided with a plurality of spray ports 851 on a lower surface thereof. That is, the spray nozzle 850a may be formed in a plate shape with a lengthwise direction orthogonal to the up-and-down direction.

For example, the spray nozzle 850a may be formed long in the front-and-rear direction or in the left-and-right direction.

In addition, when the up-and-down direction is the Z axis, the left-and-right direction is the X axis, and the front-and-rear direction is the Y axis, the spray nozzle 850a may be formed in a plate shape having lengthwise and widthwise directions on the X-Y plane. In this case, the spray nozzle 850a may have a rectangular shape.

The spray nozzle 850a is provided in plural. The plurality of spray nozzles 850a are located above a plurality of first electrodes 510 and a plurality of second electrodes 520. A plurality of second circulation passages 830 communicate with the plurality of spray nozzles 850a, respectively.

The spray nozzle 850a according to the first modified example sprays a circulated mixed solution above the first electrodes 510 and the second electrodes 520 through the plurality of spray ports 851.

The plurality of spray nozzles 850a can evenly spray the mixed solution onto the first electrodes 510 and the second electrodes 520, thereby further promoting mixing inside the reactor 100 and thus resulting in products with a high yield.

In addition, since the spray nozzles 850a are formed in a plate shape having lengthwise and widthwise directions on the X-Y plane, the mixed solution can be sprayed onto the first electrodes 510 and the second electrodes 520 without dead areas.

Spray Nozzle 850b According to Second Modified Example

Hereinafter, the spray nozzle 850b according to the second modified example of the electrochemical reaction device of the present disclosure will be described with reference to FIG. 16.

FIG. 16 is a plan view illustrating that the spray nozzle according to the second modified example of the electrochemical reaction device according to the present disclosure is provided inside a reactor.

The spray nozzle 850b according to the second modified example communicates with a second circulation passage 830 of a circulation part 800.

The spray nozzle 850b is formed long to have a length in the up-and-down direction, and is provided with a plurality of spray ports 851 on each of opposite surfaces thereof facing a first electrode 510 and a second electrode 520. That is, the spray nozzle 850b is formed in a plate shape with a lengthwise direction in the up-and-down direction, and may spray a mixed solution in a direction orthogonal to the up-and-down direction. In this case, the spray nozzle 850b may have a rectangular shape.

The spray nozzle 850b is provided in plural. The plurality of spray nozzles 850b are located between a plurality of first electrodes 510 and a plurality of second electrodes 520.

A plurality of second circulation passages 830 communicate with the plurality of spray nozzles 850b, respectively.

The spray nozzle 850b according to the second modified example sprays the mixed solution onto surfaces of the first electrode 510 and the second electrode 520 through the plurality of spray ports 851.

For example, when the first electrode 510 and the second electrode 520 are arranged in the left-and-right direction, the plurality of spray nozzles 851 are located on each of a right surface of the spray nozzle 850b facing the first electrode 510 and a left surface of the spray nozzle 850b facing the second electrode 520. Therefore, the mixed solution sprayed through the plurality of spray ports 851 may be sprayed onto the surfaces of the first electrode 510 and the second electrode 520.

In order to more effectively spray the mixed solution onto the surfaces of the first electrode 510 and the second electrode 520, the spray nozzle 850b may have a lengthwise direction in the same direction as the first electrode 510 and the second electrode 520 that is, the up-and-down direction, and may have a widthwise direction in the front-and-rear direction.

That is, the surfaces of the spray nozzle 850b on which the plurality of spray ports 851 are formed may be disposed to face the surface of the first electrode 510 and the surface of the second electrode 520.

In addition, the spray nozzle 850b may have the same up-and-down direction length and/or front-and-rear direction length, that is, a width, as the first electrode 510 and the second electrode 520.

The plurality of spray nozzles 850b can directly spray the mixed solution onto the surfaces of the first electrodes 510 and the second electrodes 520, thereby further promoting mixing inside the reactor 100 and enabling products generated on the surfaces of the first electrodes 510 and the second electrodes 520 to be quickly separated therefrom. Therefore, a higher yield is ensured.

Although preferred embodiments of the present disclosure have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions, and substitutions are possible, without departing from the scope and spirit of the present disclosure. It is thus well known to those skilled in that art that the patent right of the present disclosure should be defined by the scope and spirit of the present disclosure as disclosed in the accompanying claims.

ELECTROCHEMICAL REACTION DEVICE

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