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Effect of Si/Al ratio of HZSM-5 zeolites on catalytic upgrading of coal pyrolysis volatiles

文献类型：期刊论文

作者Wang, De-Liang1,2; Chen, Zhao-Hui1; Yu, Jian1; Gao, Shi-Qiu1
刊名Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology
出版日期2021-05-01
卷号49期号:5页码:634-640
关键词Aromatization - Carbon - Coal - Coke - Deposition - Pyrolysis - Silica - Silicon - Tar
ISSN号2097213X
DOI10.1016/S1872-5813(21)60030-0
英文摘要The effects of SiO2/Al2O3 ratio of HZSM-5 on the tar quality and coke formation during catalytic upgrading of coal pyrolysis volatiles were investigated. The results showed that the carbon deposition amount decreased with the increase of the SiO2/Al2O3 ratio of HZSM-5 due to the decrease of strong and weak acid amount. When the SiO2/Al2O3 ratio increased from 23 to 310, the carbon deposition amount decreased from 120.1 mg/g-catalyst to 23.9 mg/g-catalyst. Moreover, the higher ratio of strong and weak acid amount led to lighter fraction in tar. With the decrease of SiO2/Al2O3 ratio, the acid strength was enhanced so that the aromatics content in the tars decreased, indicating that the stronger acidic sites promoted the dehydrogenation, cyclization and aromatization reactions of volatiles, thus leading to higher yield of aromatics during catalytic coal pyrolysis. Copyright 漏2021 Editorial Dept. of Journal聽of聽Fuel聽Chemistry聽and聽Technology. All rights reserved.
学科主题Zeolites
项目编号Received&#65306 ; 2020-12-22&#65307 ; Revised&#65306 ; 2021-01-14 * Corresponding author. E-mail: sqgao@ipe.ac.cn. The project was supported by the National Key Research and Development Program of China (2016YFB0600304) and the National Natural Science Foundation of China (21878310). &#22269 ; &#23478 ; &#37325 ; &#28857 ; &#30740 ; &#21457 ; &#35745 ; &#21010 ; &#65288 ; 2016YFB0600304&#65289 ; &#21644 ; &#22269 ; &#23478 ; &#33258 ; &#28982 ; &#31185 ; &#23398 ; &#22522 ; &#37329 ; &#65288 ; 21878310&#65289 ; &#36164 ; &#21161 ; &#26412 ; &#25991 ; &#30340 ; &#33521 ; &#25991 ; &#30005 ; &#23376 ; &#29256 ; &#30001 ; Elsevier &#20986 ; &#29256 ; &#31038 ; &#22312 ; ScienceDirect &#19978 ; &#20986 ; &#29256 ; (http: //www.sciencedirect.com/science/journal/18725813)
出版者Science Press
源URL[http://ir.ipe.ac.cn/handle/122111/60261]  
作者单位1.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China
2.Sinopec Economics & Development Research Institute Company Limited, Beijing; 100029, China
推荐引用方式
GB/T 7714		 Wang, De-Liang,Chen, Zhao-Hui,Yu, Jian,et al. Effect of Si/Al ratio of HZSM-5 zeolites on catalytic upgrading of coal pyrolysis volatiles[J]. Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology,2021,49(5):634-640.
APA Wang, De-Liang,Chen, Zhao-Hui,Yu, Jian,&Gao, Shi-Qiu.(2021).Effect of Si/Al ratio of HZSM-5 zeolites on catalytic upgrading of coal pyrolysis volatiles.Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology,49(5),634-640.
MLA Wang, De-Liang,et al."Effect of Si/Al ratio of HZSM-5 zeolites on catalytic upgrading of coal pyrolysis volatiles".Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology 49.5(2021):634-640.

入库方式： OAI收割

来源：过程工程研究所

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