Membrane technology to reduce nitrogen in natural gas
US6953492B2 · kind B2 · utility
2Cited by
13References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 1, 2001 |
| Grant date | Oct 11, 2005 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/227
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and process for providing purified natural gas wherein a natural gas feed mixture of hydrocarbons, nitrogen, and other permeable gases is provided to a semi-permeable membrane separator having a relatively higher selectivity for methane and other hydrocarbons and a relatively lower selectivity for nitrogen, to thereby provide a gaseous permeate product enriched in hydrocarbons and diminished in nitrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.