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Article

Membrane-Cryogenic Post-Combustion Carbon Capture of Flue Gases from NGCC

1
Department of Chemical and Biomolecular Engineering, The University of Melbourne, Melbourne 3010, Australia
2
School of Chemical Engineering, University of New South Wales, Kensington 2052, Australia
*
Author to whom correspondence should be addressed.
Academic Editor: Gustavo A. Fimbres Weihs
Received: 26 February 2016 / Revised: 4 April 2016 / Accepted: 19 April 2016 / Published: 22 April 2016
(This article belongs to the Special Issue Carbon Capture and Storage (CCS) Technologies)
Membrane gas separation for carbon capture has traditionally been focused on high pressure applications, such as pre-combustion capture and natural gas sweetening. Recently a membrane-cryogenic combined process has been shown to be cost competitive for post-combustion capture from coal fired power stations. Here, the membrane-cryogenic combined process is investigated for application to post-combustion carbon capture from the flue gas of a Natural Gas Combined Cycle (NGCC) process. This process involves a three-membrane process, where the combustion air is used as the sweep gas on the second membrane stage to recycle CO2 through the turbine. This ensures high CO2 recovery and also increases the CO2 partial pressure in the flue gas. The three-CO2-selective membrane process with liquefaction and O2-enrichment was found to have a cost of capture higher than the corresponding process for coal post-combustion capture. This was attributed to the large size and energy duty of the gas handling equipment, especially the feed blower, because of the high gas throughput in the system caused by significant CO2 recycling. In addition, the economics were uncompetitive compared to a modelled solvent absorption processes for NGCC. View Full-Text
Keywords: membrane gas separation; cryogenic; NGCC; post-combustion membrane gas separation; cryogenic; NGCC; post-combustion
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MDPI and ACS Style

Scholes, C.A.; Ho, M.T.; Wiley, D.E. Membrane-Cryogenic Post-Combustion Carbon Capture of Flue Gases from NGCC. Technologies 2016, 4, 14. https://0-doi-org.brum.beds.ac.uk/10.3390/technologies4020014

AMA Style

Scholes CA, Ho MT, Wiley DE. Membrane-Cryogenic Post-Combustion Carbon Capture of Flue Gases from NGCC. Technologies. 2016; 4(2):14. https://0-doi-org.brum.beds.ac.uk/10.3390/technologies4020014

Chicago/Turabian Style

Scholes, Colin A., Minh T. Ho, and Dianne E. Wiley 2016. "Membrane-Cryogenic Post-Combustion Carbon Capture of Flue Gases from NGCC" Technologies 4, no. 2: 14. https://0-doi-org.brum.beds.ac.uk/10.3390/technologies4020014

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