Method and device for sour gas scrubbing
US10300428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2014 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Oct 29, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and device for gas scrubbing, in which, in a first scrubbing step, substances of a first kind and, in a subsequent second scrubbing step, substances of a second kind are selectively washed out from the gas mixture that is made to flow in countercurrent to physically acting scrubbing agents, wherein part of the scrubbing agent that is free from substances of the first kind but laden with substances of the second kind in the second scrubbing step is used in the first scrubbing step, and so there occurs a scrubbing agent stream that is laden with substances of the first and second kinds, during the regeneration of which a partly regenerated scrubbing agent stream (semilean); that contains substances of the first and second kinds but has a lower content of substances of the first kind than the scrubbing agent stream laden in the first scrubbing step is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.