Staged pressure swing adsorption for simultaneous power plant emission control and enhanced hydrocarbon recovery
US10071338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2016 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Mar 7, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Systems and methods for using pressure swing adsorption to separate and/or capture resulting emissions are provided. A stream of recycled exhaust gas is passed into a first swing adsorption reactor comprising a first adsorbent material which adsorbs CO2. An enriched N2 stream is recovered from a forward end of the first swing adsorption reactor. The pressure in the first swing adsorption reactor is reduced. The first swing adsorption reactor is purged with a portion of the first N2 stream recovered from the first swing adsorption reactor. The first purge output is passed to a second swing adsorption reactor comprising a second adsorbent material which adsorbs CO2. A second N2 stream is recovered from the second swing adsorption reactor. The pressure in the second swing adsorption reactor is reduced. The second swing adsorption reactor is purged with a steam purge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.