期刊
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
卷 9, 期 -, 页码 372-384出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijggc.2012.05.002
关键词
Molten carbonate fuel cells; Carbon capture and storage; Combined heat and power; Experimental analysis of carbon capture
类别
资金
- CERSE program of the Italian Ministry of Economic Development
Molten carbonate fuel cells (MCFCs) may operate as CO2 separators and concentrators while generating electric power, being thus a very interesting candidate to be used as carbon capture systems in fossil fired power plants. The main aim of this work is to understand the MCFC performance, its potential and efficiency to separate CO2 from the exhaust gas of fossil fired power plants and the effect of critical parameters such as the cathodic carbon dioxide concentration (X-CO2) and utilization (U-CO2), as well as the partial pressure ratio between oxygen and carbon dioxide (P-O2/P-CO2) and other parameters such as the oxygen concentration (X-O2), utilization (U-O2) and the total cathodic flow rate (Q(cat)). This was achieved by studying the experimental behaviour of a single MCFC when it is fed with a mixture simulating the composition of the exhaust gases of a combined heat and power plant, in order to point out potential limitations in the fuel cell operating conditions. In particular, the carbon dioxide concentration in the cathodic section was shown to be a critical factor at low values, that can both induce quick voltage drops and make the cell sensitive to the other parameters, which are otherwise not so important. (C) 2012 Elsevier Ltd. All rights reserved.
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