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Decoupling Gasification: Approach Principle and Technology Justification
Alternative TitleEnergy Fuels
Zhang, Juwei; Wang, Yin; Dong, Li; Gao, Shiqiu; Xu, Guangwen
2010-12-01
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume24Issue:12Pages:6223-6232
AbstractExplicitly, the fuel gasification process refers to a reaction converting a solid fuel into gaseous products, but intrinsically, it involves a series of reactions, including fuel pyrolysis, char gasification, tar reforming/cracking, combustible matter combustion, etc. All of these reactions are mutually interactive and fully coupled in a single gasification reactor (i.e., gasifier) for the major commercial gasification technologies. The decoupling gasification (DCG) mentioned in this paper is based on separating and, in turn, reorganizing at least one of the involved reactions to facilitate or suppress the interactive effects between the separated and other reactions. From this decoupling approach, there is potential to allow for the resulting gasification technology to realize the effects of polygeneration, low emission, high efficiency, good product quality, and wide fuel adaptability. This paper generalizes the decoupling approach into two types: isolating and synergizing. Through correlating technical features with these decoupling approaches, re-analysis of the technology principles is made for a few newly developed gasification technologies based on decoupling of the involved gasification reactions. The typical results obtained in research and development of these technologies at bench or pilot scales were recalled to justify the implicated decoupling principle and consequent benefits. As a consequence, the paper concludes that the decoupling of reactions provides a prospective approach to innovate technologies that enable high-efficiency clean conversion of solid fuels into high-quality products.; Explicitly, the fuel gasification process refers to a reaction converting a solid fuel into gaseous products, but intrinsically, it involves a series of reactions, including fuel pyrolysis, char gasification, tar reforming/cracking, combustible matter combustion, etc. All of these reactions are mutually interactive and fully coupled in a single gasification reactor (i.e., gasifier) for the major commercial gasification technologies. The decoupling gasification (DCG) mentioned in this paper is based on separating and, in turn, reorganizing at least one of the involved reactions to facilitate or suppress the interactive effects between the separated and other reactions. From this decoupling approach, there is potential to allow for the resulting gasification technology to realize the effects of polygeneration, low emission, high efficiency, good product quality, and wide fuel adaptability. This paper generalizes the decoupling approach into two types: isolating and synergizing. Through correlating technical features with these decoupling approaches, re-analysis of the technology principles is made for a few newly developed gasification technologies based on decoupling of the involved gasification reactions. The typical results obtained in research and development of these technologies at bench or pilot scales were recalled to justify the implicated decoupling principle and consequent benefits. As a consequence, the paper concludes that the decoupling of reactions provides a prospective approach to innovate technologies that enable high-efficiency clean conversion of solid fuels into high-quality products.
KeywordDual Fluidized-bed Victorian Brown-coal Biomass Gasification 2-stage Gasifier Tar Pyrolysis Gas Operation Air Dolomite
SubtypeReview
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ef101036c
URL查看原文
Indexed BySCI
Language英语
WOS KeywordDUAL FLUIDIZED-BED ; VICTORIAN BROWN-COAL ; BIOMASS GASIFICATION ; 2-STAGE GASIFIER ; TAR ; PYROLYSIS ; GAS ; OPERATION ; AIR ; DOLOMITE
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000285266000002
Citation statistics
Cited Times:42[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6296
Collection研究所(批量导入)
AffiliationChinese Acad Sci, State Key Lab Multiphase Complex Syst, IPE, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Juwei,Wang, Yin,Dong, Li,et al. Decoupling Gasification: Approach Principle and Technology Justification[J]. ENERGY & FUELS,2010,24(12):6223-6232.
APA Zhang, Juwei,Wang, Yin,Dong, Li,Gao, Shiqiu,&Xu, Guangwen.(2010).Decoupling Gasification: Approach Principle and Technology Justification.ENERGY & FUELS,24(12),6223-6232.
MLA Zhang, Juwei,et al."Decoupling Gasification: Approach Principle and Technology Justification".ENERGY & FUELS 24.12(2010):6223-6232.
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