Zeolitic desulfuring agents and their application in the processing of gasses containing notable CO.sub.2 proportions
US5609842A · kind A · utility
6Cited by
1References
8Claims
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Key dates
| Filing date | Nov 22, 1994 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Nov 22, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S95/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
It is now possible to desulfurize gases containing appreciable carbon dioxide proportions by limiting the production of carbon oxysulfide to a very low level, by treating these gases with adsorbents composed of very small, partially calcic zeolite A crystals agglomerated by clays containing low levels of iron and having reduced acidity and basicity. These clays may be obtained by phosphatization of montmorillonite, bentonite, attapulgite, or kaolin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.