Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| The effects of temperature and molten salt on solar pyrolysis of lignite | |
He, Xiao1; Zeng, Kuo1,2,3; Xie, Yingpu1; Flamant, Gilles3; Yang, Haiping1; Yang, Xinyi1; Nzihou, Ange4; Zheng, Anqing5 ; Ding, Zhi1; Chen, Hanping1
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| 2019-08-15 | |
| Source Publication | ENERGY
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| ISSN | 0360-5442 |
| Volume | 181Pages:407-416 |
| Corresponding Author | Zeng, Kuo(kuo.zeng@promes.cnrs.fr) |
| Abstract | 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. |
| Keyword | Solar pyrolysis Molten salt Lignite Char properties Temperature |
| DOI | 10.1016/j.energy.2019.05.181 |
| WOS Keyword | LOW-RANK COAL ; STEAM GASIFICATION ; THERMOCHEMICAL CONVERSION ; HYDROGEN-PRODUCTION ; CHAR STRUCTURE ; ZHUNDONG COAL ; SOLID-WASTE ; BIOMASS ; EVOLUTION ; CARBON |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Thermodynamics ; Energy & Fuels |
| Funding Organization | 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 Subject | Thermodynamics ; Energy & Fuels |
| WOS ID | WOS:000476965900034 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/25376 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Zeng, Kuo |
| Affiliation | 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 |
| Recommended Citation 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. |
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