Process for CO.sub.2 capture using zeolites from high pressure and moderate temperature gas streams
- Morgantown, WV
A method for separating CO.sub.2 from a gas stream comprised of CO.sub.2 and other gaseous constituents using a zeolite sorbent in a swing-adsorption process, producing a high temperature CO.sub.2 stream at a higher CO.sub.2 pressure than the input gas stream. The method utilizes CO.sub.2 desorption in a CO.sub.2 atmosphere and effectively integrates heat transfers for optimizes overall efficiency. H.sub.2O adsorption does not preclude effective operation of the sorbent. The cycle may be incorporated in an IGCC for efficient pre-combustion CO.sub.2 capture. A particular application operates on shifted syngas at a temperature exceeding 200.degree. C. and produces a dry CO.sub.2 stream at low temperature and high CO.sub.2 pressure, greatly reducing any compression energy requirements which may be subsequently required.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Organization:
- USDOE
- Assignee:
- The United States of America as represented by the United States Department of Energy (Washington, DC)
- Patent Number(s):
- 8,128,735
- Application Number:
- 12/582,760
- OSTI ID:
- 1039894
- Country of Publication:
- United States
- Language:
- English
Advances in principal factors influencing carbon dioxide adsorption on zeolites
|
journal | January 2008 |
Adsorption of CO 2 on Zeolites at Moderate Temperatures
|
journal | May 2005 |
Adsorption of CO 2 , N 2 , and O 2 on Natural Zeolites
|
journal | May 2003 |
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