Membrane loop process for separating carbon dioxide for use in gaseous form from flue gas
The invention is a process involving membrane-based gas separation for separating and recovering carbon dioxide emissions from combustion processes in partially concentrated form, and then transporting the carbon dioxide and using or storing it in a confined manner without concentrating it to high purity. The process of the invention involves building up the concentration of carbon dioxide in a gas flow loop between the combustion step and a membrane separation step. A portion of the carbon dioxide-enriched gas can then be withdrawn from this loop and transported, without the need to liquefy the gas or otherwise create a high-purity stream, to a destination where it is used or confined, preferably in an environmentally benign manner.
- Research Organization:
- MEMBRANE TECHNOLOGY AND RESEARCH, INC. Newark, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- NT-000-5312
- Assignee:
- MEMBRANE TECHNOLOGY AND RESEARCH, INC. (Newark, CA)
- Patent Number(s):
- 9,433,887
- Application Number:
- 14/477,633
- OSTI ID:
- 1322108
- Resource Relation:
- Patent File Date: 2014 Sep 04
- Country of Publication:
- United States
- Language:
- English
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