中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Dual bed pyrolysis gasification of coal: Process analysis and pilot test

文献类型:期刊论文

作者Zhang, Yuming1,2; Wang, Yin1; Cai, Lianguo1,2; Yao, Changbin1; Gao, Shiqiu1; Li, Chun-Zhu3; Xu, Guangwen1
刊名FUEL
出版日期2013-10-01
卷号112期号:0页码:624-634
关键词Dual bed Pyrolysis gasification Coal Decoupled conversion Cogeneration
英文摘要Via isolating the fuel pyrolysis and char gasification, the so-called dual bed pyrolysis gasification (DBPG) was proposed to realize the co-production of pyrolysis products and gasification gas. The process simulation with Aspen Plus shows that the DBPG process can run autothermally using air as the gasification reagent, but the complete conversion of char in the gasifier requires relatively high O/C ratio due to the absence of steam in the reactor. This would make the higher heating value (HHV) of the produced gasification gas below 1000 kcal/Nm(3). Adding steam to the char gasifier can realize full char conversion at lower O/C ratio to improve the gasification gas quality. The effect of air preheating on the gasification performance was further analyzed to optimize the operating conditions of DBPG. A pilot scale plant (100 kg-coal/h) of DBPG was established and tested by using air as the gasification reagent plant to verify the technology feasibility. At the steady operating temperatures of 600 degrees C for pyrolyzer and 850 degrees C for gasifier, the produced pyrolysis gas was rich in hydrocarbons and the tar yield reached 8.4 wt% and was rich in phenols and its derivatives, but the HHV of the gasification gas was only 510 kcal/Nm(3), much lower than the simulated value. A laboratory test on char-air gasification in a fluidized bed reactor further showed that the short residence time of char inside the gasifier and thus the low carbon conversion and the burning of the produced gas in the reactor was the cause for this lower heating value of the gasification gas. (C) 2012 Elsevier Ltd. All rights reserved.
WOS标题词Science & Technology ; Technology
类目[WOS]Energy & Fuels ; Engineering, Chemical
研究领域[WOS]Energy & Fuels ; Engineering
关键词[WOS]FLUIDIZED-BED ; BROWN-COAL ; TECHNOLOGY ; CHAR ; REACTIVITY ; GASIFIERS ; GAS
收录类别SCI
语种英语
WOS记录号WOS:000321735400088
公开日期2015-05-27
源URL[http://ir.ipe.ac.cn/handle/122111/13734]  
专题过程工程研究所_研究所(批量导入)
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Curtin Univ Technol, Fuels & Energy Technol Inst, Perth, WA 6845, Australia
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Zhang, Yuming,Wang, Yin,Cai, Lianguo,et al. Dual bed pyrolysis gasification of coal: Process analysis and pilot test[J]. FUEL,2013,112(0):624-634.
APA Zhang, Yuming.,Wang, Yin.,Cai, Lianguo.,Yao, Changbin.,Gao, Shiqiu.,...&Xu, Guangwen.(2013).Dual bed pyrolysis gasification of coal: Process analysis and pilot test.FUEL,112(0),624-634.
MLA Zhang, Yuming,et al."Dual bed pyrolysis gasification of coal: Process analysis and pilot test".FUEL 112.0(2013):624-634.

入库方式: OAI收割

来源:过程工程研究所

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