Invention Grant
- Patent Title: Staged pressure swing adsorption for simultaneous power plant emission control and enhanced hydrocarbon recovery
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Application No.: US15339978Application Date: 2016-11-01
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Publication No.: US10071338B2Publication Date: 2018-09-11
- Inventor: Narasimhan Sundaram , Hans Thomann , Franklin F. Mittricker , Loren Starcher
- Applicant: ExxonMobil Research and Engineering Company
- Applicant Address: US NJ Annandale
- Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
- Current Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
- Current Assignee Address: US NJ Annandale
- Agent Joseph E. Wrkich; Andrew T. Ward
- Main IPC: B01D53/047
- IPC: B01D53/047 ; F01N13/00 ; F01N3/08 ; B01D53/053

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.
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