Method and system for purification of natural gas using membranes
US10874979B2 · kind B2 · utility
2Cited by
12References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 2, 2016 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Sep 24, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Natural gas may be purified by removing C3+ hydrocarbons and CO2 in respective one or more separation units to yield conditioned gas lower in C3+ hydrocarbons and CO2 in comparison to the un-conditioned natural gas. Notably, the feed gas need not be subjected to joule-thomson expansion and molecular sieve dehydration performed by conventional processes. Rather, any water-rich reject stream from the separation unit(s) is dried downstream with a smaller compressor and smaller molecular sieve or gas separation membrane dehydration unit before it may be re-injected deep underground or deep under the sea bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.