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.
QC 20191127