Regenerative adsorption process for removal of silicon-containing contaminants from process gas using a neutral adsorbent media
US9039807B2 · kind B2 · utility
5Cited by
4References
20Claims
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Key dates
| Filing date | Jun 18, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Oct 25, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2290/542
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A natural gas-containing stream such as biogas from landfills and sewage treatment plants is freed of siloxane contaminants by passing the biogas through a bed containing an adsorbent having a neutral surface, which adsorbs the siloxanes. When the bed of neutral adsorbent is filled to capacity, the adsorbent bed is heated to remove the siloxanes and regenerate the bed. The neutral adsorbent reduces disadvantageous reactions between the adsorbent and siloxane and other impurities in the natural gas-containing stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.