 A chemical intercooling gas turbine cycle with chemical-looping combustionXiaosong Zhang, Wei Han, Hui Hong and Hongguang Jin Energy, 2009, vol. 34, issue 12, 2131-2136 Abstract: A novel methanol-based power system with Chemical-Looping Combustion (CLC) is proposed in this paper. CLC system is a promising approach to greatly decrease the energy penalty for CO2 removal, where iron oxides circulate between two reactors and an inherent CO2 separation occurs. The combustion process of CLC systems mainly include two steps: a reduction reaction of iron oxides, where the fuel is not mixed with air and the thermal energy for the endothermic reaction is supplied by the intercooling heat of the compressor of the gas turbine, and an oxidation reaction of iron oxides, where the compressed air is heated by the iron oxides. On the basis of the system's integration of cascade utilization of chemical energy of methanol and thermal energy, the thermal efficiency of this novel cycle is expected to be 56.8% with 90% of CO2 recovery, 10.2 percentage points higher than a combined cycle (CC) with the same CO2 capture. The promising results obtained here indicate that this novel thermal cycle is a promising approach to accomplish the efficient utilization of chemical energy of methanol without a decrease in thermal efficiency for CO2 removal. Keywords: Intercooling; Chemical-looping combustion; CO2 capture; Exergy analysis (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:34:y:2009:i:12:p:2131-2136 DOI: 10.1016/j.energy.2008.09.014 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.