Process for removing dissolved gas from an evaporator feed stream
US10337305B2 · kind B2 · utility
0Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2016 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Aug 13, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2301/063
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for treating produced water or a feedwater stream with an evaporator. The feedwater stream or produced water is directed to and through a deaerator located upstream of the evaporator. Steam produced by the evaporator is utilized to strip dissolved gases from the produced water or feedwater stream passing through the deaerator. To efficiently strip dissolved gases, the vapor pressure in the deaerator is maintained at below atmospheric pressure and the produced water or feedwater stream is heated to a temperature greater than the saturated vapor temperature in the deaerator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.