Carbon molecular sieve membranes for nitrogen/methane separation
US9999861B2 · kind B2 · utility
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3References
11Claims
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Assignee
Inventors
Key dates
| Filing date | Oct 29, 2013 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Oct 29, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/755
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The various embodiments of the disclosure relate generally to carbon molecular sieve membranes (CMSM) and their associated fabrication processes for the separation of nitrogen/methane gas mixtures, and more particularly to CMSM that maintain high nitrogen-methane selectivity and high gas permeabilities. Methods for removing nitrogen from a nitrogen methane mixture gas via the use of the CMS membranes and gas enrichment devices using the same are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.