Distillative separation of carbon dioxide from hydrogen sulfide
US4293322A · kind A · utility
17Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1980 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Apr 23, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/928
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A distillative separation of carbon dioxide and hydrogen sulfide is improved by adding a C.sub.3 -C.sub.6 alkane, a mixture of C.sub.3 -C.sub.6 alkanes, SO.sub.2 or SO.sub.3 to a distillation column to increase the relative volatility of carbon dioxide to hydrogen sulfide. Increasing the relative volatility facilitates the separation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.