CAS OpenIR
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, Demin1,2; Chen, Zhaohui1; Li, Changming1; Wang, Deliang1; Li, Yunjia1,2; Yang, Hang1,2; Liu, Zhouen1; Yu, Jian1; Gao, Shiqiu1
2021-02-01
Source PublicationFUEL
ISSN0016-2361
Volume285Pages:10
AbstractA 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.
KeywordCoal Rapid pyrolysis Volatiles upgrading Drop tube Moving bed Integrated reactor
DOI10.1016/j.fuel.2020.119156
Language英语
WOS KeywordMULTISTAGE FLUIDIZED-BED ; IN-SITU ; FLASH PYROLYSIS ; SYNGAS PRODUCTION ; BROWN-COAL ; GASIFICATION ; TEMPERATURE ; CATALYST ; BEHAVIOR ; BIOMASS
Funding ProjectNational Key Research and Development Program of China[2016YFB0600304] ; National Natural Science Foundation of China[21878310]
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China
WOS IDWOS:000588132400111
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42979
Collection中国科学院过程工程研究所
Corresponding AuthorChen, Zhaohui; Gao, Shiqiu
Affiliation1.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
Recommended Citation
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.
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