Gas prepurification process
US9221008B2 · kind B2 · utility
2Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2010 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Jan 8, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/7022
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for removing impurities from a feed air gas stream prior to the stream being fed to a cryogenic distillation unit. The feed air gas stream contacts an ionic liquid which adsorbs the impurities from the air. The method can use one or more beds such as in pressure swing adsorption processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.