Sulfur oxides and nitrogen oxides gas treating process
US4504450A · kind A · utility
1Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1983 |
| Grant date | Mar 12, 1985 |
| Priority date | — |
| Expiry date | Dec 20, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is disclosed for treating particle-containing gas streams by removing particles and gaseous atmospheric pollutants. Parallel passage contactors are utilized to remove the gaseous pollutants. The minimum required gas flow rate for effective operation of these contactors is maintained by recycling a variable amount of low temperature gas which has been passed through a particle removal zone. The recycled gas is reheated by heat exchange against a portion of the treated gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.