Reduction of nitrogen oxides
US5817282A · kind A · utility
14Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1996 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Jul 22, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L10/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method is provided for reducing the nitrogen oxide content of a flue gas produced by the combustion of fuel by introducing a nitrogen oxide removal agent into either the nitrogen oxide contaminated flue gas or the fuel to be combusted. The nitrogen oxide removal agent is the reaction product of a carbon compound in a pyrolysis liquor and a nitrogen compound such as ammonia, ammonium hydroxide or urea. The carbon compound is selected from carboxylic acids, phenols, esters, aldehydes and ketones. The pyrolysis liquor is derived from a feed stock containing cellulose, lignin or starch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.