Method of purifying a gas stream contaminated by CO2 and one or more hydrocarbons and/or nitrogen oxides by adsorption on an aggregated zeolitic adsorbent
US7935177B2 · kind B2 · utility
3Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2004 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Mar 31, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S95/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a novel method of purifying a gas stream contaminated by CO2, hydrocarbons and/or nitrogen oxides, in particular a gas stream based on air or a syngas, by adsorption on a bed of aggregated zeolitic adsorbent based on an LSX zeolite or LSX and X zeolites, of which at least 90% of the exchangeable cationic sites of the LSX zeolite or of the LSX/X zeolite blend are occupied by sodium ions, and the inert binder of which represents at most 5% of the weight of the adsorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.