Claims
- 1. An apparatus for producing dimethyl ether comprising:(a) a slurry-bed reactor filled with a dimethyl ether synthesis catalyst and a medium oil therefor, the slurry-bed reactor comprising (i) an upper tank having a reaction product gas discharge pipe to discharge a reaction product gas and (ii) a lower tank having a raw material gas feed pipe and a recirculation pipe for recirculating a non-reacted gas separated from the reaction product gas; (b) a condenser for condensing a gasified medium oil discharged from the reactor; (c) an adsorber for removing a catalyst-deactivation ingredient from the medium oil condensed in the condenser; (d) recycle means for recycling the medium oil to the slurry-bed reactor; and (e) a separation member having a liquid seal mechanism for separating the slurry-bed reactor and the condenser.
- 2. The apparatus of claim 1, wherein the condenser is mounted on an upperside of the slurry-bed reactor.
- 3. The apparatus of claim 1, wherein the slurry-bed reactor comprises:a lower stage which holds a catalyst slurry, the lower stage having a raw material gas feed pipe; and an upper stage which holds a catalyst fixed bed, the upper stage having a product gas discharge pipe.
- 4. The apparatus of claim 1, wherein the condenser is a heat exchanger.
- 5. The apparatus of claim 1, wherein the liquid seal mechanism is a bubble-cap plate.
- 6. The apparatus of claim 1, wherein the upper tank and the lower tank are separated by a dish-shaped separation plate.
- 7. The apparatus of claim 6, wherein a connection pipe having a check valve is disposed at the center of the separation plate.
- 8. The apparatus of claim 7, wherein a gas distributor is disposed at an upper end of the connection pipe and in the upper tank.
Priority Claims (5)
Number |
Date |
Country |
Kind |
8-124780 |
May 1996 |
JP |
|
8-125370 |
May 1996 |
JP |
|
8-126669 |
May 1996 |
JP |
|
8-117243 |
May 1996 |
JP |
|
8-339758 |
Dec 1996 |
JP |
|
Parent Case Info
This is a division of application Ser. No. 08/847,347, filed Apr. 24, 1997, now U.S. Pat. No. 6,147,125.
US Referenced Citations (11)
Foreign Referenced Citations (16)
Number |
Date |
Country |
324475 |
Jul 1989 |
EP |
0 324 475 |
Jul 1989 |
EP |
404408 |
Dec 1990 |
EP |
0 409 086 |
Jan 1991 |
EP |
409086 |
Jan 1991 |
EP |
482753 |
Apr 1992 |
EP |
483609 |
May 1992 |
EP |
591538 |
Apr 1994 |
EP |
2093365 |
Sep 1982 |
GB |
2253623 |
Sep 1992 |
GB |
2-9833 |
Jan 1990 |
JP |
2-280836 |
Nov 1990 |
JP |
3-52835 |
Mar 1991 |
JP |
3-181435 |
Aug 1991 |
JP |
4-264046 |
Sep 1992 |
JP |
WO 9310069 |
May 1993 |
WO |