Method for removing a nitrogen oxide from a gas
US7405069B2 · kind B2 · utility
2Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2003 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Dec 28, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention pertains to a method and an apparatus for removing a nitrogen oxide (NOx) from a gas by bringing the gas into contact with a scrub liquid in a scrubber for converting the nitrogen oxide into molecular nitrogen (N2), wherein the scrub liquid comprises a metal ion chelate and a biomass, after which at least a portion of the scrub liquid is subjected to a membrane separation process for separating at least part of the metal ion chelate, and the biomass and other solidified components, from dissolved components, wherein the membrane separation process comprises:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.