Method for separation of acid pollution gas
US4767605A · kind A · utility
21Cited by
6References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1985 |
| Grant date | Aug 30, 1988 |
| Priority date | — |
| Expiry date | Dec 2, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/68
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method and apparatus for separating at least one harmful substance such as SO.sub.2, HCl or NO.sub.x where x is 1 or 2, from combustion exhaust gases containing the same. The exhaust gases are contacted with at least one particulate adsorbent which, at a release temperature below 400.degree. C., releases at least one of water, ammonia, or carbon dioxide, for reaction with the harmful substances. This reactant leaves the adsorbent in activated condition. Thus, the reactant and activated adsorbent serve to remove harmful substances from the flowing exhaust gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.