PSA process for improving the purity of hydrogen gas and recovery of liquefiable hydrocarbons from hydrocarbonaceous effluent streams
US5332492A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1993 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | Jun 10, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G35/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for recovering hydrogen-rich gases and increasing the recovery of liquid hydrocarbon products from a hydrocarbon conversion zone effluent is improved by a particular arrangement of a refrigeration zone, a pressure swing adsorption (PSA) zone, and up to two separation zones. The admixing of at least a portion of the tail gas from the PSA zone with a hydrogen-rich gas stream recovered from a first vapor-liquid separation zone results in significantly improved hydrocarbon recoveries and the production of a high purity hydrogen product. The process is especially beneficial in the integration of the catalytic reforming process with vapor hydrogen consuming processes such as catalytic hydrocracking in a petroleum refinery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.