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Effect of pressure and H-2 on the pyrolysis characteristics of lignite: Thermal behavior and coal char structural properties

文献类型：期刊论文

作者Wang, Guijin1; Hou, Baolin1; Zhang, Jian1; Wang, Hua1; Gao, Deyang1,2; Chang, Guozhang3; Thallada, Bhaskar4
刊名JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
出版日期2018-10-01
卷号135页码:1-9
关键词Lignite Pyrolysis Hydropyrolysis Pressure TGA Coal char
ISSN号0165-2370
DOI10.1016/j.jaap.2018.10.003
通讯作者Hou, Baolin(blhou@dicp.ac.cn) ; Thallada, Bhaskar(tbhaskar@iip.res.in)
英文摘要The aim of the present work was to investigate the effect of pressure and H-2 on the pyrolysis characteristics of lignite. Thermogravimetric behavior during lignite pyrolysis was studied under different Ar or H-2 pressures using a pressurized thermogravimetric analyzer (P-TGA). Structural properties of coal chars obtained from P-TGA were investigated by the application of elemental analyzer, Fourier transform infrared spectroscopy, X-ray diffraction analyzer, and gas sorption surface area and pore size analyzer. CO2 gasification reactivity of coal chars was also evaluated by TGA tests. The results demonstrated that the weight loss for lignite pyrolysis increased in the presence of H-2 and it became more remarkable with rising pressure. Meanwhile, conversion of C and H during pressurized hydropyrolysis was promoted to a higher level considerably. Aromaticity as well as graphitization degree for coal chars were both intensified with addition of H-2, especially under elevated pressures. As to the mesopore structure, BET specific surface area of coal chars from hydropyrolysis increased obviously in comparison with that of coal chars obtained in Ar atmosphere, especially under pressurized conditions. Moreover, coal chars from hydropyrolysis exhibited higher CO2 gasification reactivity.
WOS关键词HYDROPYROLYSIS ; GASIFICATION ; HYDROGASIFICATION ; EVOLUTION ; KINETICS ; COMBUSTION ; PRODUCTS ; TEMPERATURE ; MECHANISMS ; REACTIVITY
资助项目National Natural Science Foundation of China (NSFC)[91645109] ; DICP Fundamental Research Program for Clean Energy[DICP DMTO201602]
WOS研究方向Chemistry ; Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000449125700001
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; DICP Fundamental Research Program for Clean Energy ; DICP Fundamental Research Program for Clean Energy ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; DICP Fundamental Research Program for Clean Energy ; DICP Fundamental Research Program for Clean Energy ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; DICP Fundamental Research Program for Clean Energy ; DICP Fundamental Research Program for Clean Energy ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; DICP Fundamental Research Program for Clean Energy ; DICP Fundamental Research Program for Clean Energy
源URL[http://cas-ir.dicp.ac.cn/handle/321008/166656]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Hou, Baolin; Thallada, Bhaskar
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Ningxia Univ, Coll Chem & Chem Engn, State Key Lab High Efficiency Coal Utilizat & Gre, Yinchuan 750021, Peoples R China
4.IIP, CSIR, Biofuels Div BFD, TPA, Dehra Dun 248005, Uttar Pradesh, India
推荐引用方式
GB/T 7714		 Wang, Guijin,Hou, Baolin,Zhang, Jian,et al. Effect of pressure and H-2 on the pyrolysis characteristics of lignite: Thermal behavior and coal char structural properties[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2018,135:1-9.
APA Wang, Guijin.,Hou, Baolin.,Zhang, Jian.,Wang, Hua.,Gao, Deyang.,...&Thallada, Bhaskar.(2018).Effect of pressure and H-2 on the pyrolysis characteristics of lignite: Thermal behavior and coal char structural properties.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,135,1-9.
MLA Wang, Guijin,et al."Effect of pressure and H-2 on the pyrolysis characteristics of lignite: Thermal behavior and coal char structural properties".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 135(2018):1-9.

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来源：大连化学物理研究所

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