Catalytic pyrolysis of high-density polyethylene (HDPE) over hierarchical ZSM-5 zeolites produced by microwave-assisted chelation-alkaline treatment

doi:10.1016/j.fuel.2024.131532

IMR OpenIR

	Catalytic pyrolysis of high-density polyethylene (HDPE) over hierarchical ZSM-5 zeolites produced by microwave-assisted chelation-alkaline treatment
	Qie, Zhipeng 1,2; Xiang, Huan 3,4; Xiang, Huaizhong 2; Zou, Run 2; Alhelali, Abdullah 2; Alhassawi, Hassan 2; Ding, Shengzhe 2; Jiao, Yilai 5; Holmes, Stuart M.2; Garforth, Arthur A.2; Gao, Xin 6; Wang, Jiawei 4; Fan, Xiaolei 2
通讯作者	Gao, Xin(gaoxin@tju.edu.cn) ; Wang, Jiawei(j.wang23@aston.ac.uk) ; Fan, Xiaolei(xiaolei.fan@manchester.ac.uk)
	2024-07-15
发表期刊	FUEL
ISSN	0016-2361
卷号	368 页码:9
摘要	A new microwave (MW) assisted chelation-alkaline strategy was developed to produce hierarchical ZSM-5 zeolites (with external surface area of 203 m2/g) in minutes, leading to the formation of heterogeneous structure with a high-silica shell and aluminium-rich core (silicon-to-aluminium ratios of 49.2 and 37.6, respectively). The zeolites were assessed comparatively by catalytic pyrolysis of high-density polyethylene (HDPE). Compared to the mesoporous ZSM-5 zeolite prepared by the conventional alkaline treatment (via desilication by the NaOH aqueous solution), the hierarchical zeolite by the MW-assisted method showed comparable kinetics in catalytic pyrolysis of HDPE, but with the improved stability in the cyclic pyrolysis-regeneration tests. The improved stability could be due to the better-preserved structural integrity thanks to the relatively milder surface etching by the MW-assisted chelation dealumination method. In addition, compared to the parent ZSM-5, the product distribution of HDPE catalytic pyrolysis over the hierarchical ZSM-5 zeolite showed a higher portion of oil products (i.e., 12 wt% vs. 6.9 wt%) and an improved alkane-to-olefin ratio in the oil products (2.22 vs. 1.86, respectively) due to the reduced acidity and improved hydrogen transfer ability. The MW-assisted chelationalkaline treatment could be a new strategy to regulate the trade-off between stability and activity of zeolites for catalytic applications.
关键词	Hierarchical zeolites ZSM-5 Microwave (MW) Chelation Catalytic pyrolysis High -density polyethylene (HDPE)
资助者	European Union ; China Scholarship Council ; Royal Society of Chemistry Research Fund ; Natural Science QiHang Project of Southwest Petroleum University ; British Councial Institutional Links
DOI	10.1016/j.fuel.2024.131532
收录类别	SCI
语种	英语
资助项目	European Union[872102] ; China Scholarship Council[201906120207] ; Royal Society of Chemistry Research Fund[R23-8089911052] ; Natural Science QiHang Project of Southwest Petroleum University[2022QHZ018] ; British Councial Institutional Links[527641843]
WOS研究方向	Energy & Fuels ; Engineering
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:001215696800001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186166
专题	中国科学院金属研究所
通讯作者	Gao, Xin; Wang, Jiawei; Fan, Xiaolei
作者单位	1.Beijing Univ Technol, Coll Mech & Energy Engn, Beijing 100124, Peoples R China 2.Univ Manchester, Sch Engn, Dept Chem Engn, Manchester M13 9PL, England 3.Southwest Petr Univ, Coll Chem & Chem Engn, Chengdu 610500, Peoples R China 4.Aston Univ, Energy & Bioprod Res Inst EBRI, Birmingham B4 7ET, England 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 6.Tianjin Univ, Natl Engn Res Ctr Distillat Technol, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Qie, Zhipeng,Xiang, Huan,Xiang, Huaizhong,et al. Catalytic pyrolysis of high-density polyethylene (HDPE) over hierarchical ZSM-5 zeolites produced by microwave-assisted chelation-alkaline treatment[J]. FUEL,2024,368:9.
APA	Qie, Zhipeng.,Xiang, Huan.,Xiang, Huaizhong.,Zou, Run.,Alhelali, Abdullah.,...&Fan, Xiaolei.(2024).Catalytic pyrolysis of high-density polyethylene (HDPE) over hierarchical ZSM-5 zeolites produced by microwave-assisted chelation-alkaline treatment.FUEL,368,9.
MLA	Qie, Zhipeng,et al."Catalytic pyrolysis of high-density polyethylene (HDPE) over hierarchical ZSM-5 zeolites produced by microwave-assisted chelation-alkaline treatment".FUEL 368(2024):9.