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Pyrolysis-Bridged Hybrid Power Systems and Their Application for Thermal Power Plants
Alternative TitleEnergy Fuels
Li, Yuzhe1,2; Fan, Chuigang1; Song, Wenli1
2014-10-01
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume28Issue:10Pages:6531-6539
AbstractA hybrid power system based on coal pyrolysis and steam integration is proposed to improve the performance of power plants. The most outstanding features of the system are a pyrolysis process integrated with a circulating fluidized bed boiler and power generation by the steam integration. The model of the hybrid power system is set up by THERMOFLEX software and Aspen Plus. Results show that the thermal efficiency of pyrolysis process can achieve values of 90%95%, and the majority of the energy used by the pyrolysis is consumed during the drying and quench processes. Compared with a conventional steam cycle power system, the gross electric efficiency and thermal efficiency of the new system are increased by 1.9% and 5.1%, respectively. Energy and exergy analyses are presented to study the performance differences of two systems. Exergy destruction of the boiler with steam integration is decreased in the new system. Exergy destruction of gas turbines is lower than that of the boiler. Although additional exergy loss occurs in the pyrolyzer and heat recovery steam generator, the overall exergy loss of the new system is less than that of the conventional system.; A hybrid power system based on coal pyrolysis and steam integration is proposed to improve the performance of power plants. The most outstanding features of the system are a pyrolysis process integrated with a circulating fluidized bed boiler and power generation by the steam integration. The model of the hybrid power system is set up by THERMOFLEX software and Aspen Plus. Results show that the thermal efficiency of pyrolysis process can achieve values of 90%95%, and the majority of the energy used by the pyrolysis is consumed during the drying and quench processes. Compared with a conventional steam cycle power system, the gross electric efficiency and thermal efficiency of the new system are increased by 1.9% and 5.1%, respectively. Energy and exergy analyses are presented to study the performance differences of two systems. Exergy destruction of the boiler with steam integration is decreased in the new system. Exergy destruction of gas turbines is lower than that of the boiler. Although additional exergy loss occurs in the pyrolyzer and heat recovery steam generator, the overall exergy loss of the new system is less than that of the conventional system.
KeywordFluidized-bed Exergy Analysis Coal Pyrolysis Downer Reactor Energy Devolatilization Gasification Technology Biomass Fuels
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ef5015742
URL查看原文
Indexed BySCI
Language英语
WOS KeywordFLUIDIZED-BED ; EXERGY ANALYSIS ; COAL PYROLYSIS ; DOWNER REACTOR ; ENERGY ; DEVOLATILIZATION ; GASIFICATION ; TECHNOLOGY ; BIOMASS ; FUELS
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000343336000039
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11678
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Yuzhe,Fan, Chuigang,Song, Wenli. Pyrolysis-Bridged Hybrid Power Systems and Their Application for Thermal Power Plants[J]. ENERGY & FUELS,2014,28(10):6531-6539.
APA Li, Yuzhe,Fan, Chuigang,&Song, Wenli.(2014).Pyrolysis-Bridged Hybrid Power Systems and Their Application for Thermal Power Plants.ENERGY & FUELS,28(10),6531-6539.
MLA Li, Yuzhe,et al."Pyrolysis-Bridged Hybrid Power Systems and Their Application for Thermal Power Plants".ENERGY & FUELS 28.10(2014):6531-6539.
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