Process for purifying a gas by adsorption of the impurities on several active carbons
US6402813B2 · kind B2 · utility
120Cited by
6References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 4, 2001 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jan 4, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S95/901
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The gas stream containing one or more gaseous impurities from the group formed by carbon dioxide, water vapor, H2S, alcohols, SO2 and C1-C8 saturated or unsaturated, linear, branched or cyclic hydrocarbons is brought into contact with several different porous carbon adsorbents, that is to say active carbons having different properties and characteristics. The gas is air, nitrogen, hydrogen produced by the reforming or cracking of ammonia or the combustion gas or fermentation gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.