Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt
US4863704A · kind A · utility
18Cited by
0References
14Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 15, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Jun 15, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00058
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is presented for reducing the concentration of pollutants in an effluent from the combustion of a carbonaceous fuel. The process comprises injecting a first treatment agent into the effluent at a first temperature zone and injecting a second treatment agent into the effluent at a second temperature zone, wherein the first and second treatment agents are injected under conditions effective to reduce the effluent pollution index. At least one of the treatment agents comprises an ammonium salt of an organic acid having a carbon to nitrogen ratio of greater than 1:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.