发明名称 |
SLURRY HYDROCARBON SYNTHESIS PROCESS WITH MULTISTAGE CATALYST REJUVENATION |
摘要 |
<p>A reversibly deactivated hydrocarbon synthesis catalyst in a hydrocarbon synthesis slurry is rejuvenated by successively passing the slurry through at least two rejuvenation stages external of the slurry reactor, each of which comprises a rejuvenation zone followed by an offgas removal zone. This is accomplished by using a lift pipe outside the reactor into which slurry from the reactor is passed and contacts a catalyst rejuvenating gas to partially rejuvenate the catalyst particles and form a rejuvenation offgas. The gas and slurry mixture are passed into a vessel in which the gas is removed from the slurry. Rejuvenation gas is bubbled into the slurry in the vessel to further rejuvenate the catalyst. A gas removing downcomer removes gas from the slurry in the vessel before it is passed back into the reactor. The rejuvenation gas also acts as a lift gas in the lift pipe.</p> |
申请公布号 |
CA2286289(A1) |
申请公布日期 |
1998.11.12 |
申请号 |
CA19982286289 |
申请日期 |
1998.04.29 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
COULALOGLOU, CONSTANTINE A.;CHANG, MIN;MART, CHARLES J.;HSIA, STEPHEN J. |
分类号 |
B01J23/94;B01J8/00;B01J8/22;B01J38/10;B01J38/58;C07B61/00;C07C1/04;C07C1/06;C10G2/00;(IPC1-7):C10G2/00 |
主分类号 |
B01J23/94 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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