Claims
- 1. An apparatus for mixing a fluid feedstock, such as a heavy oil, and particles of a catalyst for gasifying the fluid, which comprises a plurality of stand pipes extending vertically, a distributing device for distributing the particles uniformly into said stand pipes, a mixing section positioned below said distributing device from the interior of which said stand pipes extend to an upper interior of said mixing section to feed the particles thereto, a plurality of plates arranged in said mixing section and below said stand pipes for dispersing the particles falling therefrom outwardly in a radial direction, and a fluid feed section arranged in said mixing section in surrounding relation to an outer periphery of each of the stand pipes to spray the fluid downwardly in a vertical direction in close proximity and in surrounding relation to an entire outer periphery of a column of particles falling from each of the stand pipes so as to collide with the particles after being dispersed by the plates.
- 2. The apparatus according to claim 1, wherein said fluid feed section has a spraying device for spraying the fluid using a spray medium, such as steam and air.
- 3. The apparatus according to claim 1, wherein a thermal insulating device is provided in surrounding relation to said fluid feed section to prevent the fluid sprayed thereinto from being affected by heat of the particles heated at a temperature of over 300° C.
- 4. The apparatus according to claim 1, wherein said mixing section is provided below said plates with a further plurality of plates for further dispersing the particles dispersed by said upper plates, the further plurality of plates being disposed at least where the particles fall in an increased density.
- 5. An apparatus for mixing a fluid feedstock, such as a heavy oil, and particles of a catalyst for gasifying the fluid, which comprises a plurality of stand pipes extending vertically, a distributing device for distributing the particles uniformly into said stand pipes, a mixing section positioned below said distributing device from the interior of which said stand pipes extend into an upper interior of said mixing section to feed the particles thereto, a plurality of plates arranged in said mixing section and below said stand pipes for dispersing the particles falling therefrom outwardly in a radial direction, and a fluid feed section arranged in said mixing section in surrounding relation to an outer periphery of each of the stand pipes to spray the fluid over an entire outer periphery of a column of particles falling from each of said stand pipes.
- 6. The apparatus according to claim 5, wherein a disc shape plate is disposed below said stand pipes and has openings just under lower ends of the stand pipes.
- 7. The apparatus according to claim 5, wherein said fluid feed section is a spraying device for spraying the fluid using a spray medium, such as steam and air.
- 8. The apparatus according to claim 5, wherein a thermal insulating device is provided in surrounding relation to said fluid feed section to prevent the fluid sprayed thereinto from being affected by heat of the particles heated at a temperature of over 300° C.
- 9. The apparatus according to claim 5, wherein said mixing section is provided below said plates with a further plurality of plates for future dispersing the particles dispersed by said upper plates, the further plurality of plates being disposed at least where the particles fall in an increased density.
Priority Claims (2)
Number |
Date |
Country |
Kind |
9-082372 |
Mar 1997 |
JP |
|
9-082373 |
Mar 1997 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATION
1. This application is a division of U.S. application Ser. No. 09/042,396, filed Mar. 13, 1998, now allowed.
Divisions (1)
|
Number |
Date |
Country |
Parent |
09042396 |
Mar 1998 |
US |
Child |
09725626 |
Nov 2000 |
US |