Produced water treatment process at crude oil and natural gas processing facilities
US10703644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2013 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jun 5, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Embodiments of the invention provide a method for producing a treated water stream. The method includes receiving a feed stream including at least one substance dissolved in a water phase, and processing the feed water stream in a plurality of stages arranged in operation from a lowest temperature and pressure to a highest temperature and pressure, to produce the treated water stream and a concentrated stream. Each stage includes a vessel, a heat exchanger, an evaporator, and a condenser. Each evaporator is configured to evaporate an amount of water using one of direct heat or indirect heat. Each condenser is configured to condense at least a portion of steam generated by a successive stage. In accordance with various embodiments, the plurality of stages is arranged in series. In other embodiments, the plurality of stages is arranged in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.