Process for separating CO.sub.2 and H.sub.2 S from hydrocarbons
US4589896A · kind A · utility
72Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1985 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Jan 28, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/928
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention involves a process for separating components of a feed gas containing acid gases and hydrocarbons to form a CO.sub.2 -rich stream, an H.sub.2 S-rich stream and a hydrocarbon-rich stream. Separation is achieved by initially passing the feed gas through a plurality of membrane separation units to produce a hydrocarbon stream and an acid gas stream. The acid gas stream undergoes further separation to produce a CO.sub.2 -rich product stream and an H.sub.2 S-rich stream. This process is especially adaptable for treating natural gas streams and gas streams resulting from enhanced oil recovery operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.