Method of purifying a natural gas by mercaptan adsorption
US7211128B2 · kind B2 · utility
34Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2004 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Nov 9, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The raw natural gas is pretreated in treating unit 30. The treated gas is then purified by adsorption of the mercaptans in first enclosure 31. The various cuts that make up the purified gas are separated in fractionating unit 34. Part of the methane making up the purified gas is saturated with a C5+ hydrocarbon in contactor 33, then it is fed into second enclosure 32 so as to regenerate the adsorbent material contained in this second enclosure. The gas from the second enclosure is washed in unit 35, then recycled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.