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Techno-economic Comparison Of Combined Cycle Power Plants With Pre-combustion CO2 Capture Via Two Different Reforming Methods: Chemical Looping Reforming And Gas Switching Reforming
Norwegian University of Science and Technology, Høgskoleringen 1, Trondheim 7491, Norway.ORCID iD: 0000-0002-4056-0454
Norwegian University of Science and Technology, Høgskoleringen 1, Trondheim 7491, Norway.
Sintef Industry, S.P. Andersens veg 5, Trondheim 7031, Norway.
Norwegian University of Science and Technology, Høgskoleringen 1, Trondheim 7491, Norway ; Sintef Industry, S.P. Andersens veg 5, Trondheim 7031, Norway.
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper focuses on the techno-economic comparison of gas-fired combined cycle power plants with CO2 capture and tworeforming methods, chemical looping reforming (CLR) and gas-switching reforming (GSR). The overall processes are denoted asCLR-CC and GSR-CC respectively. The net electrical efficiency of the CLR-CC and GSR-CC is 42.1% and 46.2% respectively.Anyhow, with improvements in the gas turbine configuration, the net electrical efficiency improves by 2.5%. GSR-CC has ahigher CO2 avoidance (>95%). The levelised cost of electricity (LCOE) for CLR-CC is lower than that of GSR-CC for basedload operation of the power plant. Anyhow, GSR-CC provides flexibility in terms of output, electricity or pure H2. The capitalrequirement in the GSR-CC is higher due to the requirement of multiple standalone reactors to maintain a steady flow of thesyngas produced from the GSR. The LCOE of both the processes is sensitive to the fuel cost. Further improvements in the GSRCCprocess can make the process competitive to post-combustion capture.

Place, publisher, year, edition, pages
2018. p. 21-26
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-264379OAI: oai:DiVA.org:kth-264379DiVA, id: diva2:1373449
Conference
14th International Conference on Greenhouse Gas Control Technologies, GHGT-14, 21st -25th October 2018, Melbourne, Australia
Note

QC 20191127

Available from: 2019-11-27 Created: 2019-11-27 Last updated: 2019-11-27Bibliographically approved

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