High-quality tar production from coal in an integrated reactor: Rapid pyrolysis in a drop tube and downstream volatiles upgrading over char in a moving bed

doi:10.1016/j.fuel.2020.119156

	High-quality tar production from coal in an integrated reactor: Rapid pyrolysis in a drop tube and downstream volatiles upgrading over char in a moving bed
	Wang, Demin 1,2; Chen, Zhaohui 1; Li, Changming 1; Wang, Deliang 1; Li, Yunjia 1,2; Yang, Hang 1,2; Liu, Zhouen 1; Yu, Jian 1; Gao, Shiqiu 1
刊名	FUEL
	2021-02-01
卷号	285 页码:10
关键词	Coal Rapid pyrolysis Volatiles upgrading Drop tube Moving bed Integrated reactor
ISSN号	0016-2361
DOI	10.1016/j.fuel.2020.119156
英文摘要	A purposely built integrated reactor, which comprised a drop tube and a moving bed assembly located at the bottom of the drop tube, combined rapid pyrolysis and in situ volatiles upgrading over char for the production of high-quality tar from coal. Rapid pyrolysis took place when coal particles flowed through the hot drop tube, and then the produced volatiles and char were introduced into the moving bed for further pyrolysis and volatiles upgrading. The operation parameters of rapid pyrolysis alone in the drop tube were first investigated to ensure a high yield of the initial tar for further upgrading in the moving bed. The effects of the temperature and char bed thickness on further pyrolysis and volatiles upgrading were then determined to obtain the optimized operating conditions in the moving bed. Under the optimized conditions, the tar yield could be as high as 11.4 wt% and reached 89.8% of the Gray-King assay yield. The light fraction in the tar and light tar yield reached 69.0% and 7.9 wt%, respectively, which was much better than that obtained from the rapid pyrolysis alone in the drop tube. The experimental results could confirm the feasibility of the integrated pyrolysis-upgrading process for the production of high-quality tar from coal.
资助项目	National Key Research and Development Program of China[2016YFB0600304] ; National Natural Science Foundation of China[21878310]
WOS关键词	MULTISTAGE FLUIDIZED-BED ; IN-SITU ; FLASH PYROLYSIS ; SYNGAS PRODUCTION ; BROWN-COAL ; GASIFICATION ; TEMPERATURE ; CATALYST ; BEHAVIOR ; BIOMASS
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000588132400111
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42978]
专题	中国科学院过程工程研究所
通讯作者	Chen, Zhaohui; Gao, Shiqiu
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
推荐引用方式 GB/T 7714	Wang, Demin,Chen, Zhaohui,Li, Changming,et al. High-quality tar production from coal in an integrated reactor: Rapid pyrolysis in a drop tube and downstream volatiles upgrading over char in a moving bed[J]. FUEL,2021,285:10.
APA	Wang, Demin.,Chen, Zhaohui.,Li, Changming.,Wang, Deliang.,Li, Yunjia.,...&Gao, Shiqiu.(2021).High-quality tar production from coal in an integrated reactor: Rapid pyrolysis in a drop tube and downstream volatiles upgrading over char in a moving bed.FUEL,285,10.
MLA	Wang, Demin,et al."High-quality tar production from coal in an integrated reactor: Rapid pyrolysis in a drop tube and downstream volatiles upgrading over char in a moving bed".FUEL 285(2021):10.