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Techno-economic assessment of the novel gas switching reforming (GSR) concept for gas-fired power production with integrated CO2 capture
Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway.ORCID iD: 0000-0002-4056-0454
SINTEF Materials and Chemistry, Trondheim, Norway.
Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway.
Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway ; SINTEF Materials and Chemistry, Trondheim, Norway.
2018 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 43, no 18, p. 8754-8769Article in journal (Refereed) Published
Abstract [en]

The focus of this study is to carry out techno-economic analysis of a pre-combustion capture method in Natural Gas based power plants with a novel reactor concept, Gas Switching Reforming (GSR). This reactor concept enables auto thermal natural gas reforming with integrated CO 2 capture. The process analysed integrates GSR, Water Gas Shift (WGS), and Pressure Swing Adsorption (PSA) into a Natural Gas based combined cycle power plant. The overall process is defined as GSR-CC. Sensitivity studies have been carried out to understand the performance of the GSR-CC process by changing the oxygen carrier utilization and Steam/Carbon ratio in GSR. The net electrical efficiency of the GSR-CC lies between 45.1% and 46.2% and the levelised cost of electricity lies between 124.4 and 128.1 $/MWh (at European natural gas prices) for the parameter space assumed in this study. By eliminating the WGS step from the process, the net electrical efficiency improves to 47.4% and the levelised cost of electricity reduces to 120.7 $/MWh. Significant scope exists for further efficiency improvements and cost reductions from the GSR-CC system. In addition, the GSR-CC process achieves high CO 2 avoidance rates (>95%) and offers the possibility to produce pure H 2 during times of low electricity demands.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 43, no 18, p. 8754-8769
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-264374DOI: 10.1016/j.ijhydene.2018.02.076ISI: 000432769000017Scopus ID: 2-s2.0-85045120016OAI: oai:DiVA.org:kth-264374DiVA, id: diva2:1373501
Note

QC 20191129

Available from: 2019-11-27 Created: 2019-11-27 Last updated: 2019-11-29Bibliographically approved

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