Distillative separation of carbon dioxide from hydrogen sulfide
US4383841A · kind A · utility
28Cited by
1References
10Claims
0Family size
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Key dates
| Filing date | Jul 20, 1981 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Jul 20, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/929
- 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.