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High Olefin Yield in Pyrolysis of Heavier Hydrocarbon Liquids Using Microwave as Heat Supplier
Jing, Xiaodong; Zhao, Yuehong; Wen, Hao; Xu, Zhihong
2017-02-01
发表期刊ENERGY & FUELS
ISSN0887-0624
卷号31期号:2页码:2052-2062
摘要In order to expand the scope of C2H4 pyrolysis material and recycle the waste polyolefin, this study has employed microwave pyrolysis of heavier hydrocarbon liquids. Microwave pyrolysis not only maintains a stable energy supply to the reaction materials for obtaining a high conversion rate, but also avoids coking caused by local overheating. Steam may serve a dual role as diluent and heat carrier. Thus, this study has obtained higher olefin yield, higher olefin selectivity, and better operational continuity than conventional steam cracking. Light olefins (C-2(=)-C-4(=)) reached 50.65-68.64 mol% in the pyrolysis gas. The yields of C2H4 and C3H6 for heavier hydrocarbons pyrolysis were 42.80-44.76 and 12.98-13.91 wt% of the feedstock, respectively, while the maximum yields of C2H4 and C3H6 for pyrolysis of liquid products of polyolefin cracking were 47.00 and 22.83 wt%, respectively. Analysis of the pyrolysis mechanism indicates that the beta-scission reactions of free radicals are predominant, while the secondary reactions are significantly inhibited due to the enhanced heat transfer between the steam and the hydrocarbons.
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1021/acs.energyfuels.6b02734
收录类别SCI
语种英语
关键词[WOS]LOW-DENSITY POLYETHYLENE ; FLUIDIZED-BED REACTOR ; CLOSED-BATCH REACTOR ; FAST-MIXING REACTOR ; THERMAL-CRACKING ; PLASTIC WASTES ; LIGHT OLEFINS ; TEMPERATURE PYROLYSIS ; ACTIVATED CARBON ; MILD CRACKING
WOS研究方向Energy & Fuels ; Engineering
WOS类目Energy & Fuels ; Engineering, Chemical
项目资助者State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences(MPCS-2012-A-01)
WOS记录号WOS:000394560900107
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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/122111/22095
专题多相复杂系统国家重点实验室
作者单位Chinese Acad Sci, Inst Proc Engn, Beijing Engn Res Ctr Proc Pollut Control, State Key Lab Multiphase Complex Syst, 1,2nd North St, Beijing 100190, Peoples R China
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Jing, Xiaodong,Zhao, Yuehong,Wen, Hao,et al. High Olefin Yield in Pyrolysis of Heavier Hydrocarbon Liquids Using Microwave as Heat Supplier[J]. ENERGY & FUELS,2017,31(2):2052-2062.
APA Jing, Xiaodong,Zhao, Yuehong,Wen, Hao,&Xu, Zhihong.(2017).High Olefin Yield in Pyrolysis of Heavier Hydrocarbon Liquids Using Microwave as Heat Supplier.ENERGY & FUELS,31(2),2052-2062.
MLA Jing, Xiaodong,et al."High Olefin Yield in Pyrolysis of Heavier Hydrocarbon Liquids Using Microwave as Heat Supplier".ENERGY & FUELS 31.2(2017):2052-2062.
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