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Characteristics of oil shale pyrolysis in a two-stage fluidized bed
Tian, Yong1,2; Li, Mengya1,2; Lai, Dengguo1,2; Chen, Zhaohui3; Gao, Shiqiu1; Xu, Guangwen1
2018-02-01
发表期刊CHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
卷号26期号:2页码:407-414
摘要Rapid pyrolysis of oil shale coupled with in-situ upgrading of pyrolysis volatiles over oil shale char was studied in a laboratory two-stage fluidized bed (TSFB) to clarify the shale oil yield and quality and their variations with operating conditions. Rapid pyrolysis of oil shale in fluidized bed (FB) obtained shale oil yield higher than the Fischer Assay oil yield at temperatures of 500-600 degrees C. The highest yield was 12.7 wt% at 500 degrees C and was about 1.3 times of the Fischer Assay oil yield. The heavy fraction (boiling point > 350 degrees C) in shale oil at all temperatures from rapid pyrolysis was above 50%. Adding an upper FB of secondary cracking over oil shale char caused the loss of shale oil but improved its quality. Heavy fraction yield decreased significantly and almost disappeared at temperatures above 550 degrees C, while the corresponding light fraction (boiling point < 350 degrees C) yield dramatically increased. In terms of achieving high light fraction yield, the optimal pyrolysis and also secondary cracking temperatures in TSFB were 600 degrees C, at which the shale oil yield decreased by 17.74% but its light fraction yield of 7.07 wt% increased by 86.11% in comparison with FB pyrolysis. The light fraction yield was higher than that of Fischer Assay at all cases in TSFB. Thus, a rapid pyrolysis of oil shale combined with volatile upgrading was important for producing high-quality shale oil with high yield as well. (C) 2017 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
关键词Oil Shale Pyrolysis Fluidized-bed Upgrading Secondary Cracking Reactors
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cjche.2017.02.008
收录类别SCI
语种英语
关键词[WOS]HEATED FIXED-BED ; SECONDARY REACTIONS ; FLASH PYROLYSIS ; TEMPERATURE ; CRACKING ; YIELD ; CATALYST ; GAS
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Basic Research Program of China(2014CB744303)
WOS记录号WOS:000427859300023
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24099
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.Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China
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GB/T 7714
Tian, Yong,Li, Mengya,Lai, Dengguo,et al. Characteristics of oil shale pyrolysis in a two-stage fluidized bed[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2018,26(2):407-414.
APA Tian, Yong,Li, Mengya,Lai, Dengguo,Chen, Zhaohui,Gao, Shiqiu,&Xu, Guangwen.(2018).Characteristics of oil shale pyrolysis in a two-stage fluidized bed.CHINESE JOURNAL OF CHEMICAL ENGINEERING,26(2),407-414.
MLA Tian, Yong,et al."Characteristics of oil shale pyrolysis in a two-stage fluidized bed".CHINESE JOURNAL OF CHEMICAL ENGINEERING 26.2(2018):407-414.
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