Low-carbon power generation cycles: the feasibility of CO2 capture and opportunities for integration

  • Wojciech M. Budzianowski Wroclaw University of Technology


Low-carbon power generation receives increasing interest due to climate warming concerns. The present article analyses three low-carbon power cycles. The focus is on the feasibility of CO2 capture and opportunities for energy and mass integration. The first power cycle is a zero-carbon solid biomass fuelled multi-step gasification gas turbine power cycle which applies multi-step solid biomass conversion being a more reversible process than one-step biomass combustion. The second zero-carbon coal fuelled oxy-gasification steam chemical looping combustion gas turbine cycle benefits from (i) improved cycle efficiency due to the increased reversibility of a chemical looping combustion process, (ii) cycle mass and energy integration due to several recirculation loops involved and (iii) extremely high CO2 capture rate due to purity of CO2/H2O mixture achieved at the outlet from a syngas reactor. The last power cycle - a biogas fuelled oxy-reforming fuel cell cycle - is superior in the feasibility of CO2 capture, i.e. CO2 is captured from CO2-enriched streams and due to the utilisation of renewable biogas, negative net CO2 atmospheric emissions are achieved.It is concluded that high CO2 capture rates are feasible from pressurised CO2-enriched streams comprising either water or hydrogen, thus necessitating oxy-fuel power cycles. Opportunities for mass and energy integration are found to be increased in systems involving closed mass and energy recirculation loops. The discussions also emphasises that low-carbon power cycles could achieve minimised exergy losses by applying more reversible energy conversion processes.

Author Biography

Wojciech M. Budzianowski, Wroclaw University of Technology
Assisstant Professor
How to Cite
BUDZIANOWSKI, Wojciech M.. Low-carbon power generation cycles: the feasibility of CO2 capture and opportunities for integration. Journal of Power Technologies, [S.l.], v. 91, n. 1, p. 6-13, apr. 2011. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/226>. Date accessed: 05 aug. 2021.
Combustion and Fuel Processing


energy and fuels; CO2 capture; integration

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