DOI: 10.1016/j.jcou.2018.09.00
Scopus记录号: 2-s2.0-85053138975
论文题名: Techno-economic and exergetic assessment of an oxy-fuel power plant fueled by syngas produced by chemical looping CO2 and H2O dissociation
作者: Farooqui A. ; Bose A. ; Ferrero D. ; Llorca J. ; Santarelli M.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 27 起始页码: 500
结束页码: 517
语种: 英语
英文关键词: Carbon capture and storage
; Chemical looping syngas production
; Oxyfuel combined cycle
; Techno-economics
; Thermodynamic analysis
Scopus关键词: Carbon dioxide
; Dissociation
; Efficiency
; Environmental management
; Fossil fuel power plants
; Fossil fuels
; Integration
; Natural gasoline plants
; Redox reactions
; Sensitivity analysis
; Synthesis gas
; Thermoanalysis
; Carbon capture and storages (CCS)
; Combined cycle
; Economic and environmental performance
; Natural gas combined cycles
; Operational parameters
; Syngas production
; Techno-economics
; Thermo dynamic analysis
; Carbon capture
英文摘要: Natural Gas Combined Cycle (NGCC) is presently the most efficient fossil fuel power plant but with no carbon capture. The efficiency penalty resulting from the integration of carbon capture and storage (CCS) is, however, a major challenge. The present study proposes an oxyfuel NGCC integrated with Chemical looping (CL) syngas production (OXY-CC-CL), for power generation with CCS. The chemical looping CO2/H2O dissociation would produce syngas (CO and H2 with methane reduction step in redox cycle) from recycled exhaust gas for additional power generation within the power plant. This integration of CL unit with the existing conventional oxy fuel power plant would be expected to decrease the efficiency penalty. Therefore, the thermodynamic (both energetic and exergetic), economic and environmental performance of the integrated chemical looping unit oxyfuel NGCC power plant with carbon capture were assessed. A 500 MW scale plant was modelled and compared with a conventional NGCC and oxyfuel NGCC plant with carbon capture (OXY-CC). The net efficiency penalty of the proposed OXY-CC-CL unit was 4.2% compared to an efficiency penalty of 11.8% of the OXY-CC unit with a 100% carbon capture. The energetic efficiency obtained hence was 50.7%, together with an exergetic efficiency of 47.1%. Heat integration via pinch analysis revealed the possibility to increase the system energetic efficiency up to 61%. Sensitivity analyses were performed to identify relative impacts of system operational parameters. The specific capital cost of the proposed OXY-CC-CL was obtained as 2455 $/kW, with a corresponding LCOE of 128 $/MWh without carbon credits. © 2018 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111817
Appears in Collections: 气候减缓与适应
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作者单位: Energy Department (DENERG), Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, 10129, Italy; Department of Energy Technology, KTH Royal Institute of Technology, Brinellvägen 68, Stockholm, 10044, Sweden; Institute of Energy Technologies, Department of Chemical Engineering, Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, Barcelona, 08019, Spain
Recommended Citation:
Farooqui A.,Bose A.,Ferrero D.,et al. Techno-economic and exergetic assessment of an oxy-fuel power plant fueled by syngas produced by chemical looping CO2 and H2O dissociation[J]. Journal of CO2 Utilization,2018-01-01,27