Process of removing sulfur oxides from gaseous mixtures
US5248321A · kind A · utility
8Cited by
22References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1992 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Aug 6, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S95/90
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided for removing sulfur oxides from gaseous mixtures such as flue gases or tail gases. The process involves contacting the gaseous mixture with a non-functionalized polymeric sorbent which is essentially hydrophobic, such as styrenic polymers. The process may utilize pressure swing adsorption techniques, and is capable of producing a desorption stream with an SO.sub.2 concentration suitable for immediate conversion to elemental sulfur by the Claus process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.