Oxygen and sulfur tolerant adsorbent system
US9422496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2014 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Mar 5, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2290/542
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treating a gas stream, such as natural gas, comprising a process design that prevents the formation of undesired sulfur and sulfates from the reaction of oxygen and sulfur is disclosed. After water is removed from the gas stream, a portion of the dried gas stream is sent through a cooled adsorbent bed that has a first layer to remove sulfur compounds and then a layer to remove oxygen. There may be additional layers of adsorbent to remove other contaminants. The gas stream that is then heated to regenerate an adsorbent bed no longer contains sulfur and oxygen and undesirable reactions of sulfur and oxygen are avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.