Removal of oil from compressed gas with macroporous polymeric adsorbent
US5976221A · kind A · utility
69Cited by
21References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Sep 3, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/401
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A macroporous polymeric adsorbent is used to remove oil mist and oil vapors from compressed air produced by an oil-lubricated air compressor prior to feeding the compressed air to an air separation membrane system. The macroporous polymeric adsorbent, previously known only for its ability to extract low molecular weight volatile organic compounds from liquids and gases, retains its ability to extract the oil for extended periods of time and outperforms the commonly used activated carbon of the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.