Chemical structure and gas products of different rank coals during pyrolysis: Based on in-situ FTIR and TG/MS analysis techniques
Wu, Dun1,2,3; Zhang, Wenyong3; Fu, Biao1,4; Hu, Guangqin1,3,4
通讯作者Wu, Dun(wudun@ustc.edu.cn)
2019-06-01
发表期刊JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN1388-6150
卷号136期号:5页码:2017-2031
摘要In this study, three coal samples (long flame coal/LFC, coking coal/CC, and anthracite/AC) from the same coal seam in Huaibei coalfield were simulated using in-situ Fourier transform infrared spectroscopy (FTIR) and thermogravimetry/mass spectrometry (TG/MS), respectively. The results show that with increasing coal rank, the V-daf contents and atomic H/C and O/C ratio values of three coal samples decrease, but their calorific values increase. The absorption vibration peaks of main functional groups such as hydroxyl (-OH), aliphatic hydrocarbon (-CH2 and -CH3), aromatic hydrocarbon (C=C and CH), and oxygen-containing functional groups (C=O, C-O, and-COOH) can be observed in the infrared spectrum of three coal samples. Through the change curves of AI (Aromaticity index), CI (Condensed index of aromatic structure), and OMI (Organic maturity index) values with the final temperature of pyrolysis, there are differences in the main functional groups of three coal samples during the pyrolysis reaction. The initial temperature and the maximum mass loss rate temperature increase correspondingly as coal rank increases, but the mass loss difference and maximum mass loss rate decrease significantly. With the increase of coal rank, the initial temperature of small molecule gas (water (H2O), carbon dioxide (CO2), methane (CH4), and hydrogen (H-2)) during coal pyrolysis is gradually higher. For each kind of small molecule gas, its maximum release can be affected by coal rank.
关键词Chemical structure Gas products Coal FTIR TG MS
DOI10.1007/s10973-018-7877-4
关键词[WOS]TEMPERATURE ; KINETICS
收录类别SCI ; SCI
语种英语
资助项目Open Projects of Research Center of Coal Resources Safe Mining and Clean Utilization, Liaoning[LNTU17KF10] ; National Key Basic Research and Development Program of China[2016YFC0201600] ; National Natural Science Foundation of China[41502152]
WOS研究方向Thermodynamics ; Chemistry
项目资助者Open Projects of Research Center of Coal Resources Safe Mining and Clean Utilization, Liaoning ; National Key Basic Research and Development Program of China ; National Natural Science Foundation of China
WOS类目Thermodynamics ; Chemistry, Analytical ; Chemistry, Physical
WOS记录号WOS:000466162800013
出版者SPRINGER
引用统计
被引频次:24[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/14083
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Wu, Dun
作者单位1.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China
2.LiaoNing Tech Univ, Res Ctr Cola Resources Safe Min & Clean Utilizat, Fuxing 125105, Liaoning, Peoples R China
3.Anhui Prov Bur Coal Geol, Explorat Res Inst, Hefei 23008, Anhui, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
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Wu, Dun,Zhang, Wenyong,Fu, Biao,et al. Chemical structure and gas products of different rank coals during pyrolysis: Based on in-situ FTIR and TG/MS analysis techniques[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2019,136(5):2017-2031.
APA Wu, Dun,Zhang, Wenyong,Fu, Biao,&Hu, Guangqin.(2019).Chemical structure and gas products of different rank coals during pyrolysis: Based on in-situ FTIR and TG/MS analysis techniques.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,136(5),2017-2031.
MLA Wu, Dun,et al."Chemical structure and gas products of different rank coals during pyrolysis: Based on in-situ FTIR and TG/MS analysis techniques".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 136.5(2019):2017-2031.
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