The effects of temperature and molten salt on solar pyrolysis of lignite

doi:10.1016/j.energy.2019.05.181

GIEC OpenIR

	The effects of temperature and molten salt on solar pyrolysis of lignite
	He, Xiao 1; Zeng, Kuo 1,2,3; Xie, Yingpu 1; Flamant, Gilles 3; Yang, Haiping 1; Yang, Xinyi 1; Nzihou, Ange 4; Zheng, Anqing5 ; Ding, Zhi 1; Chen, Hanping 1
	2019-08-15
发表期刊	ENERGY
ISSN	0360-5442
卷号	181 页码:407-416
通讯作者	Zeng, Kuo(kuo.zeng@promes.cnrs.fr)
摘要	Molten salt pyrolysis driven by concentrated solar radiation is well positioned to utilize solar energy and lignite effectively. This study focused on the effects of temperature (500, 600, 700 and 800 degrees C) and molten carbonate salt (Li2CO3-Na2CO3-K2CO3) on properties of char obtained from lignite pyrolysis, as well as gas and tar products for revealing their formation mechanism and transformation process. Molten salt pyrolysis of HulunBuir lignite produced more gas products and less char compared to conventional pyrolysis owing to the enhanced heat transfer and catalytic effect of molten salt. The char yield decreased from 58.4% to 43.4%, and the gas yield (especially CO2, H-2 and CO) increased from 28.3% to 46.1% at 800 degrees C. CO2, CO and H-2 production increased about 60.43%, 103.42% and 65.2% at 800 degrees C, respectively. Additionally, the presence of molten salt improved the tar quality with more hydrocarbon content (maximum increase of 5.8%) and less oxygenated compounds. The structure and reactivity relationship of char was characterized by XRD, BET, SEM, FTIR, Raman spectroscopy and TGA. Molten salt generated char had a higher reactivity due to the increase of disorder, surface area, microporosity (maximum of 71.74%) and active sites. (C) 2019 Elsevier Ltd. All rights reserved.
关键词	Solar pyrolysis Molten salt Lignite Char properties Temperature
DOI	10.1016/j.energy.2019.05.181
关键词[WOS]	LOW-RANK COAL ; STEAM GASIFICATION ; THERMOCHEMICAL CONVERSION ; HYDROGEN-PRODUCTION ; CHAR STRUCTURE ; ZHUNDONG COAL ; SOLID-WASTE ; BIOMASS ; EVOLUTION ; CARBON
收录类别	SCI
语种	英语
资助项目	National key research and development plan[2017YFB0602701-02] ; National Natural Science Foundation of China[51706083] ; Natural Science Foundation of Shenzhen[JCYJ20170818164006890] ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development[Y807s11001] ; Foundation of Institute for Clean and Renewable Energy at Huazhong University of Science Technology[3011120011]
WOS研究方向	Thermodynamics ; Energy & Fuels
项目资助者	National key research and development plan ; National Natural Science Foundation of China ; Natural Science Foundation of Shenzhen ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development ; Foundation of Institute for Clean and Renewable Energy at Huazhong University of Science Technology
WOS类目	Thermodynamics ; Energy & Fuels
WOS记录号	WOS:000476965900034
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：39[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/25376
专题	中国科学院广州能源研究所
通讯作者	Zeng, Kuo
作者单位	1.Huazhong Univ Sci & Technol, State Key Lab Coal Combust, 1037 Luoyu Rd, Wuhan 430074, Hubei, Peoples R China 2.Shenzhen Huazhong Univ Sci & Technol, Res Inst, Shenzhen 523000, Peoples R China 3.PROMES CNRS, Proc Mat & Solar Energy Lab, 7 Rue Four Solaire, F-66120 Odeillo Font Romeu, France 4.Univ Toulouse, Mines Albi, UMR CNRS 5302, Ctr RAPSODEE, Campus Jarlard, F-81013 Albi 9, France 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	He, Xiao,Zeng, Kuo,Xie, Yingpu,et al. The effects of temperature and molten salt on solar pyrolysis of lignite[J]. ENERGY,2019,181:407-416.
APA	He, Xiao.,Zeng, Kuo.,Xie, Yingpu.,Flamant, Gilles.,Yang, Haiping.,...&Chen, Hanping.(2019).The effects of temperature and molten salt on solar pyrolysis of lignite.ENERGY,181,407-416.
MLA	He, Xiao,et al."The effects of temperature and molten salt on solar pyrolysis of lignite".ENERGY 181(2019):407-416.