Method of purifying a natural gas by mercaptan adsorption
US7311758B2 · kind B2 · utility
3Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Jun 16, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/306
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The raw natural gas is deacidized and dehydrated in units DA and DH. The treated gas is then purified by adsorption of the mercaptans in first enclosure A1. Part of the purified gas is heated in E1, then fed into second enclosure A2 so as to discharge the water adsorbed by the adsorbent material contained in this second enclosure. A water-laden purge gas is fed into third enclosure A3 containing a mercaptan-laden adsorbent material. In A3, the mercaptans are desorbed and replaced by the water. The gas from the third enclosure is washed in unit L, then recycled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.