Integrated compression and membrane separation process for removal of CO2 from raw natural gas
US11992804B2 · kind B2 · utility
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Key dates
| Filing date | Dec 31, 2021 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Aug 7, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A single compressor is used to separately compress permeate from cascaded first and second gas separation membrane-based separation units and residue from a fourth gas separation membrane-based separation unit in order to avoid too high a CO2 partial pressure in the compressed permeate. After the permeates from the first and second stages are compressed, the compressed stream is fed to a third gas separation membrane-based separation unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.