Process for removing dissolved organics from aqueous compositions
US5236590A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1991 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Nov 21, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is disclosed for removing dissolved organics from an aqueous composition, said composition comprising water, carbon dioxide and dissolved organics, and said composition having a pH of 6.5 or less and an inlet organics concentration. The process comprises the steps of feeding said aqueous composition to a centrifugal separation zone, preferably to a hydrocyclone, depressurizing said composition in said centrifugal separation zone to regasify at least a portion of said carbon dioxide. An aqueous product stream is removed from the centrifugal separation zone wherein the concentration of said organics is less than said inlet organics concentration. The process is particularly useful in the cleanup of industrial wastewater, and also for removing organics from water produced in petroleum production operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.