Mixed matrix carbon molecular sieve (CMS) membrane and use of mixed matrix CMS membrane in C2H4/C2H6 separation
US11759763B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2023 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Feb 6, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure relates to a mixed matrix carbon molecular sieve (CMS) membrane, a preparation method of the mixed matrix CMS membrane, and use of the mixed matrix CMS membrane in C2H4/C2H6 separation, and belongs to the technical field of membrane separation. The present disclosure solves the problem that the CMS materials in the prior art exhibit low selectivity and low flux during an ethylene/ethane separation process. In this patent, C3N4 is used as a filling particle to prepare a mixed matrix membrane (MMM), and the MMM is pyrolyzed to prepare a CMS membrane. The C3N4/6FDA-DAM MMM has prominent C2 separation performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.