Slurry hydrocarbon synthesis with cyclic co purge and catalyst rejuvenation
US6066679A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1998 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Oct 16, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Partially deactivated catalyst in a slurry hydrocarbon synthesis process is rejuvenated employing a cyclic rejuvenation process in which syngas or CO flow into the slurry is stopped to stop the hydrocarbon synthesis reaction, the CO purged out of the slurry with a purge gas in the presence of hydrogen, the catalyst rejuvenated with a hydrogen containing rejuvenating gas and the hydrocarbon synthesis reaction restarted by passing the synthesis gas feed back into the reactor. All or a portion of the purge gas and/or the rejuvenating gas may be recycled during the respective purge and/or rejuvenation. The hydrogen required during the purge is typically part of the purge gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.