Process for recovering oil and treating resulting produced water with ceramic membranes
US9506334B2 · kind B2 · utility
3Cited by
3References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 10, 2014 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Apr 30, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for cleaning a ceramic membrane used in an oil recovery process. The cleaning method includes online and offline modes. In the online mode, the method includes periodically backflushing the ceramic membrane with an aqueous media. In the offline mode, the method includes backpulsing or statically cleaning the ceramic membrane by utilizing an aqueous alkaline media, an aqueous acidic media, and a liquid hydrocarbon solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.