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Two-stage dual fluidized bed gasification: Its conception and application to biomass
Xu, Guangwen1,2; Murakami, Takahiro2,3; Suda, Toshiyuki2; Matsuzaw, Yoshiaki2; Tani, Hidehisa2; Xu, GW
2009
Source PublicationFUEL PROCESSING TECHNOLOGY
ISSN0378-3820
Volume90Issue:1Pages:137-144
AbstractThe quoted two-stage dual fluidized bed gasification (T-DFBG) devises the use of a two-stage fluidized bed (TFB) to replace the single-stage bubbling fluidized bed gasifier involved in the normally encountered dual fluidized bed gasification (N-DFBG) systems. By feeding fuel into the lower stage of the TFB, this lower stage functions as a fuel gasifier similar to that in the N-DFBG so that the upper stage of the TFB works to upgrade the produced gas in the lower stage and meanwhile to suppress the possible elutriation of fuel particles fed into the freeboard of the lower-stage bed. The heat carrier particles (HCPs) circulated from the char combustor enter first the upper stage of the TFB to facilitate the gas upgrading reactions occurring therein, and the particles are in turn forwarded into the lower stage to provide endothermic heat for fuel pyrolysis and gasification reactions. Consequently, with T-DFBG it is hopeful to increase gasification efficiency and decrease tar content in the produced gas. This anticipation was corroborated through gasifying dry coffee grounds in two 5.0kg/h experimental setups configured according to the principles of T-DFBG and N-DFBG, respectively. In comparison with the N-DFBG case, the test according to T-DFBG increased, the fuel C conversion and cold gas efficiency by about 7% and decreased tar content in the produced gas by up to 25% under similar reaction conditions. Test results demonstrated also that all these upgrading effects via adopting T-DFBG were more pronounced when a Ca-based additive was blended into the fuel. (C) 2008 Elsevier B.V. All rights reserved.
KeywordDual Fluidized Bed Gasification Multi-stage Fluidized Bed Biomass Tar Elimination In-bed Gas Upgrading Calcium
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.fuproc.2008.08.007
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS SubjectChemistry, Applied ; Energy & Fuels ; Engineering, Chemical
WOS IDWOS:000262206800015
Citation statistics
Cited Times:67[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6777
Collection多相复杂系统国家重点实验室
Corresponding AuthorXu, GW
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
2.IHI Corp Ltd, Res Lab, Isogo Ku, Yokohama, Kanagawa 2358501, Japan
3.Natl Inst Adv Ind Sci & Technol, Clean Gas Grp, Tsukuba, Ibaraki 3058569, Japan
Recommended Citation
GB/T 7714
Xu, Guangwen,Murakami, Takahiro,Suda, Toshiyuki,et al. Two-stage dual fluidized bed gasification: Its conception and application to biomass[J]. FUEL PROCESSING TECHNOLOGY,2009,90(1):137-144.
APA Xu, Guangwen,Murakami, Takahiro,Suda, Toshiyuki,Matsuzaw, Yoshiaki,Tani, Hidehisa,&Xu, GW.(2009).Two-stage dual fluidized bed gasification: Its conception and application to biomass.FUEL PROCESSING TECHNOLOGY,90(1),137-144.
MLA Xu, Guangwen,et al."Two-stage dual fluidized bed gasification: Its conception and application to biomass".FUEL PROCESSING TECHNOLOGY 90.1(2009):137-144.
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