Process for reversibly absorbing acid gases from gaseous mixtures
US5338521A · kind A · utility
10Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Nov 10, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/1493
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is disclosed for reversibly absorbing acid gases from gaseous mixtures wherein a salt hydrate is heated to a temperature above its melting point and exposed to an acid gas which is absorbed by the salt hydrate to form a salt hydrate melt. This melt is thereafter cooled to a temperature sufficient to solidify the melt and to desorb the acid gas from the solidified salt hydrate. Preferred salt hydrates include tetramethylammonium fluoride tetrahydrate and tetraethylammonium acetate tetrahydrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.