Nitrogen oxides removal method
US4113839A · kind A · utility
12Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1977 |
| Grant date | Sep 12, 1978 |
| Priority date | — |
| Expiry date | Oct 27, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Nitrogen oxides removal method wherein nitrogen oxides are removed from a gas by bringing the gas into contact with a granulated material containing an alkali and cement material, active carbon and a binder. The active carbon promotes an absorption reaction between the alkali material and nitrogen oxides, the cement material provides a porous but strong structure to the material, and the binder permits longer use of the material in a wide range of conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.