Pyrolysis characteristics and kinetics of low rank coals by TG-FTIR method

doi:10.1016/j.fuproc.2016.10.008

QIBEBT-IR > 热化学转化研究组

	Pyrolysis characteristics and kinetics of low rank coals by TG-FTIR method
	Song, Huijuan1,2 ; Liu, Guangrui1 ; Zhang, Jinzhi 1,2; Wu, Jinhu1
	2017-02-01
发表期刊	FUEL PROCESSING TECHNOLOGY
卷号	156 页码:454-460
摘要	The paper studied the pyrolysis characteristics and kinetics of four typical low rank coals selected from different mines of China using thermogravimetry coupled with Fourier transform infrared spectrometry (TG-FTIR). The chemical structures of the low rank coals were investigated by the FFIR measurements. The FUR spectra of the low rank coals were divided into four zones and functional groups of the chemical structures were investigated by curve-fitted method. The thermogravimetric (TG) and differential thermogravimetric (DTG) curves of low rank coals indicated that the overall pyrolysis processes could be divided into five stages based on characteristic temperatures and each stage had its unique characteristics. The pyrolysis reactions mainly occurred in the fast pyrolysis stage. The activation energy E and frequency factor A were calculated by a single first-order reaction model using Doyle integral method. The results showed that the E and A of the fast pyrolysis stage were the largest, while the obtained E of the slow pyrolysis stage was close to that of the fast polycondensation stage. The emissions of CO2 and CH4 were detected during pyrolysis process. The results revealed that the evolutions of CO2 and CH4 were affected mainly by content of carboxyl groups and content of aliphatic chains in the low rank coals, respectively. The pyrolysis characteristics and kinetics of low rank coals were closely associated with their complex chemical structures. (C) 2016 Elsevier B.V. All rights reserved.
文章类型	Article
关键词	Low Rank Coal Tg-ftir Pyrolysis Kinetics
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1016/j.fuproc.2016.10.008
关键词[WOS]	LATE PERMIAN COALS ; SOUTHERN CHINA ; BEHAVIOR ; EVOLUTION ; LIGNITE ; DEVOLATILIZATION ; GASIFICATION ; IR
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
项目资助者	National Key RD Program(2016YFB0600302-04)
WOS类目	Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000390078200051
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9191
专题	热化学转化研究组
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, 189 Songling Rd, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Song, Huijuan,Liu, Guangrui,Zhang, Jinzhi,et al. Pyrolysis characteristics and kinetics of low rank coals by TG-FTIR method[J]. FUEL PROCESSING TECHNOLOGY,2017,156:454-460.
APA	Song, Huijuan,Liu, Guangrui,Zhang, Jinzhi,&Wu, Jinhu.(2017).Pyrolysis characteristics and kinetics of low rank coals by TG-FTIR method.FUEL PROCESSING TECHNOLOGY,156,454-460.
MLA	Song, Huijuan,et al."Pyrolysis characteristics and kinetics of low rank coals by TG-FTIR method".FUEL PROCESSING TECHNOLOGY 156(2017):454-460.