Composition for use in reducing air contaminants from combustion effluents
US4843980A · kind A · utility
63Cited by
11References
9Claims
0Family size
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Key dates
| Filing date | Apr 26, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Apr 26, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An effective process is provided for cleanly and safely combusting coal or other carbonaceous material in a manner which enhances the environment by reducing emission of pollutants. In order to reduce nitrogen oxide and sulfur oxide emissions during combustion, combustion is carried out in the presence of one or more additives comprising an alkali metal salt, such as sodium chloride. To further enhance the reaction and removal of sulfur oxides and nitrogen oxides, the additive can include an iron-containing compound, such as iron oxide, and/or a metal oxide, such as manganese oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.