Hydrogen gas separation using organic-vapor-resistant membranes
US6544316B2 · kind B2 · utility
32Cited by
54References
65Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Dec 28, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D71/64
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for separating hydrogen from a multicomponent gas mixture containing hydrogen and a hydrocarbon, using gas-separation membranes selective for hydrogen over the hydrocarbon. The membranes use a selective layer made from a polymer having repeating units of a fluorinated polymer, and demonstrate good resistance to plasticization by the organic components in the gas mixture under treatment, and good recovery after exposure to liquid aromatic hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.