 Maximizing coal-fired power plant efficiency with integration of amine-based CO2 capture in greenfield and retrofit scenariosDavid H. Van Wagener, Ulrich Liebenthal, Jorge M. Plaza, Alfons Kather and Gary T. Rochelle Energy, 2014, vol. 72, issue C, 824-831 Abstract: A modeling study was performed to investigate the direct impact of amine CO2 scrubbing on the efficiency of a coal-fired power plant. The full scope of the capture process was simulated with 8 m PZ (piperazine) to estimate the steam, electricity, and cooling water requirements. The steam cycle was simulated for applications of the capture technology to both retrofit and greenfield (optimized new build) coal-fired power plants. The reboiler duty of the stripping column had an optimal molar L/G (liquid to gas ratio) of 4.9 in the absorber and the maximum reboiler temperature of 150 °C. Integration of this CO2 capture with a greenfield coal plant yielded an identical optimal L/G, but the optimal reboiler temperature was 140 °C, and the decrease in power plant efficiency was 7.3%. The retrofit case resulted in an optimum case with an L/G of 5.9, a reboiler temperature of 120 °C, and a decrease in plant efficiency of 7.0%. When running at the optimal L/G, the optimization sensitivity to the reboiler temperature was low. Keywords: CO2 capture; Integration; Retrofit; Greenfield (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:72:y:2014:i:c:p:824-831 DOI: 10.1016/j.energy.2014.04.117 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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