Non-isothermal coal char gasification with CO2 in a micro fluidized bed reaction analyzer and a thermogravimetric analyzer

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	Non-isothermal coal char gasification with CO2 in a micro fluidized bed reaction analyzer and a thermogravimetric analyzer
	Wang, Fang 1,2; Zeng, Xi 1; Wang, Yonggang 2; Su, Hui 2; Yu, Jian 1; Xu, Guangwen 1
刊名	FUEL
	2016-01-15
卷号	164 期号:JAN 页码:403-409
关键词	Micro fluidized bed Char Gasification Reaction kinetics Non-isothermal reaction
ISSN号	0016-2361
英文摘要	The so-called micro fluidized bed reaction analyzer (MFBRA) and a thermogravimetric analyzer (TGA) were adopted to comparatively investigate the non-isothermal gasification of coal char with CO2. Experimental results demonstrated that heating rate obviously affected the coal char gasification reaction. Raising heating rate evidently increased the temperatures at the initiating reaction (T-i), the maximal reaction rate (T-m) and the finishing reaction (T-f). Nonetheless, it decreased the char conversion at a given reaction temperature and also the activation energy estimated by the single heating rate method. Comparing the data tested by TGA and MFBRA under the same heating rate clarified that the temperatures of T-i, T-m, and T-f were all relatively lower for MFBRA. The difference for such characteristic reaction temperatures between TGA and MFBRA increased with raising the heating rate. The measurement in MFBRA also led to the higher activation energy estimated according to both the single heating rate and the combination heating rate methods. Perhaps all these results are attributed to the lower limitation from heat and transfer including gas diffusion in MFBRA than in TGA. (C) 2015 Published by Elsevier Ltd.
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]	KINETIC-ANALYSIS ; CARBON-DIOXIDE ; STEAM ; DIFFUSION ; PYROLYSIS ; MODEL
收录类别	SCI
语种	英语
WOS记录号	WOS:000363476000048
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/19752]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.China Univ Min & Technol Beijing, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Wang, Fang,Zeng, Xi,Wang, Yonggang,et al. Non-isothermal coal char gasification with CO2 in a micro fluidized bed reaction analyzer and a thermogravimetric analyzer[J]. FUEL,2016,164(JAN):403-409.
APA	Wang, Fang,Zeng, Xi,Wang, Yonggang,Su, Hui,Yu, Jian,&Xu, Guangwen.(2016).Non-isothermal coal char gasification with CO2 in a micro fluidized bed reaction analyzer and a thermogravimetric analyzer.FUEL,164(JAN),403-409.
MLA	Wang, Fang,et al."Non-isothermal coal char gasification with CO2 in a micro fluidized bed reaction analyzer and a thermogravimetric analyzer".FUEL 164.JAN(2016):403-409.