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dc.contributor.authorSyed Saqlineen_US
dc.contributor.authorChua, Zhen Yeeen_US
dc.contributor.authorLiu, Wenen_US
dc.identifier.citationSyed Saqline, Chua, Z. Y. & Liu, W. (2021). Coupling chemical looping combustion of solid fuels with advanced steam cycles for CO₂ capture : a process modelling study. Energy Conversion and Management, 244, 114455-.
dc.description.abstractChemical looping combustion is a cost-competitive solution for producing low carbon electricity. In this paper, we investigate by means of a process modelling study, the coupling of chemical looping combustion of solid fuels with advanced steam-based power cycles, viz. supercritical, ultra-supercritical and advanced ultra-supercritical Rankine cycles. The energy and exergy efficiencies of the various chemical looping combustion power plant configurations are compared against the reference plants without carbon capture. Our models incorporate practical considerations for reactor design. With an upper operating temperature limit of 950 °C, the maximum efficiencies achievable by integrated gasification combined cycle chemical looping combustion (IGCC–CLC) and in situ gasification chemical looping combustion power plants (iG-CLC) are 41.3% and 41.5%, respectively. Overall, iG-CLC emerges as the most efficient CLC configuration. Comparing to an integrated gasification combined cycle without carbon capture, the energy efficiency penalties for capturing CO2 from iG-CLC coupled with subcritical, supercritical, ultra-supercritical or advanced ultra-supercritical steam cycles are 5.1%, 5.0%, 5.2% or 13.0%, respectively. The biomass-fired chemical looping combustion power plants also show low energy efficiency penalties (<2.5%) compared to the reference biomass power plants without CO2 capture. Our modelling results suggest that chemical looping combustion will remain an attractive carbon capture technology for solid fuel power plants, in a future when supercritical steam turbines become the norm.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNanyang Technological Universityen_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofEnergy Conversion and Managementen_US
dc.rights© 2021 Elsevier Ltd. All rights reserved. This paper was published in Energy Conversion and Management and is made available with permission of Elsevier Ltd.en_US
dc.subjectEngineering::Chemical engineeringen_US
dc.titleCoupling chemical looping combustion of solid fuels with advanced steam cycles for CO₂ capture : a process modelling studyen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.researchResidues and Resource Reclamation Centreen_US
dc.description.versionSubmitted/Accepted versionen_US
dc.subject.keywordsChemical Looping Combustionen_US
dc.subject.keywordsProcess Simulationen_US
dc.description.acknowledgementThe authors wish to acknowledge the financial support by the Start-Up Grant from Nanyang Technological University and Academic Research Fund Tier 1 (Grant No. RG112/18) from the Singapore Ministry of Education. The work is also funded by National Research Foundation (NRF), Prime Minister’s Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme.en_US
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