Oil dehydrator
US6517725B2 · kind B2 · utility
33Cited by
33References
65Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Aug 22, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M175/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for the removal of free, emulsified, or dissolved water from liquids of low volatility, such as oil, is shown. The liquid of low volatility is removed by contacting the fluid stream of concern with one side of a semi-permeable membrane. The membrane divides a separation chamber into a feed side into which the stream of fluid is fed, and a permeate side from which the water is removed. The permeate side of the chamber is maintained at a low partial pressure of water through presence of vacuum, or by use of a sweep gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.