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Suppressing secondary reactions of coal pyrolysis by reducing pressure and mounting internals in fixed-bed reactor
Cheng, Shuai1,2; Lai, Dengguo1,2; Shi, Zhen1,2; Hong, Leisheng3; Zhang, Jianling1; Zeng, Xi1; Gao, Shiqiu1; Xu, Guangwen1
2017-04-01
发表期刊CHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
卷号25期号:4页码:507-515
摘要Pyrolysis of Shenmu coal was performed in fixed-bed reactors indirectly heated by reducing operating pressure and mounting internals in the reactor to explore their synergetic effects on coal pyrolysis. Mounting internals particularly designed greatly improved the heat transfer inside coal bed and raised the yield of tar production. Reducing pressure further facilitated the production of tar through its suppression of secondary reactions occurring in the reactor. The absolute increase in tar yield reached 3.33 wt% in comparison with the pyrolysis in the reactor without internals under atmospheric pressure. The obtained tar yield in the reactor with internals under reduced pressurewas even higher than the yield of Gray-King assay. Through experiments in a laboratory fixed bed reactor, it was also clarified that the effect of reducing pressure is related to volatile release rate in pyrolysis. It did not obviously vary tar yield at pyrolysis temperatures below 600 degrees C, while the effect was evident at 650 and 700 degrees C but became limited again above 800 degrees C. Under reduced pressure the produced tar contained more aliphatics and phenols but less aromatics. (C) 2016 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
关键词Pyrolysis Fixed-bed Reaction Coal Reducing Pressure Internals
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cjche.2016.09.013
收录类别SCI
语种英语
关键词[WOS]VICTORIAN BROWN-COAL ; OIL-SHALE PYROLYSIS ; SOLID HEAT CARRIER ; HIGH-QUALITY TAR ; VACUUM PYROLYSIS ; CHAR STRUCTURE ; FLASH PYROLYSIS ; MOVING-BED ; GASIFICATION ; EVOLUTION
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(21376250) ; National Basic Research Program of China(2014CB744303) ; Strategic Priority Research Program of Chinese Academy of Sciences(XDA07010100)
WOS记录号WOS:000402913500015
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22636
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.AnHui Univ Technol, Maanshan 243002, Peoples R China
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Cheng, Shuai,Lai, Dengguo,Shi, Zhen,et al. Suppressing secondary reactions of coal pyrolysis by reducing pressure and mounting internals in fixed-bed reactor[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2017,25(4):507-515.
APA Cheng, Shuai.,Lai, Dengguo.,Shi, Zhen.,Hong, Leisheng.,Zhang, Jianling.,...&Xu, Guangwen.(2017).Suppressing secondary reactions of coal pyrolysis by reducing pressure and mounting internals in fixed-bed reactor.CHINESE JOURNAL OF CHEMICAL ENGINEERING,25(4),507-515.
MLA Cheng, Shuai,et al."Suppressing secondary reactions of coal pyrolysis by reducing pressure and mounting internals in fixed-bed reactor".CHINESE JOURNAL OF CHEMICAL ENGINEERING 25.4(2017):507-515.
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