文献类型：期刊文献

英文题名：Insights into structure-performance relationship in the catalytic cracking of high density polyethylene

作者：Dai, Leilei[1];Zhou, Nan[2];Cobb, Kirk[1];Chen, Paul[1];Wang, Yunpu[3];Liu, Yuhuan[3];Zou, Rongge[5];Lei, Hanwu[5];Mohamed, Badr A.[6];Cheng, Yanling[1,4];Ruan, Roger[1]

第一作者：Dai, Leilei

通讯作者：Cheng, YL[1];Ruan, RG[1];Cheng, YL[2]

机构：[1]Univ Minnesota, Ctr Biorefining, 1390 Eckles Ave, St Paul, MN 55108 USA;[2]Zhejiang Univ Technol, Inst Energy & Power Engn, Liuhe Rd 288, Hangzhou 310023, Peoples R China;[3]Nanchang Univ, Engn Res Ctr Biomass Convers, State Key Lab Food Sci & Technol, Minist Educ, Nanchang 330047, Peoples R China;[4]Beijing Union Univ, Biochem Engn Coll, 18, Fatouxili 3 Area, Beijing 100023, Peoples R China;[5]Washington State Univ, Dept Biol Syst Engn, Richland, WA 99354 USA;[6]Cairo Univ, Dept Agr Engn, Giza, Egypt

第一机构：Univ Minnesota, Ctr Biorefining, 1390 Eckles Ave, St Paul, MN 55108 USA

通讯机构：[1]corresponding author), Univ Minnesota, Ctr Biorefining, 1390 Eckles Ave, St Paul, MN 55108 USA;[2]corresponding author), Beijing Union Univ, Biochem Engn Coll, 18, Fatouxili 3 Area, Beijing 100023, Peoples R China.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;

年份：2022

卷号：318

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20223412590185);Scopus(收录号：2-s2.0-85135885976);WOS:【SCI-EXPANDED(收录号:WOS:000860664200005)】；

基金：We acknowledge the financial support from Xcel Energy, Resynergi, the University of Minnesota MnDrive Environment Program MNE12, China Scholarship Council (CSC) , and the University of Minnesota Center for Biorefining. Parts of this work were carried out in the Characterization Facility, University of Minnesota, which receives partial support from NSF through the MRSEC program.

语种：英文

外文关键词：Plastics; ZSM-5; Bronsted acid site; Pore structure; Catalyst lifetime

摘要：Zeolite is considered a promising catalyst for plastic cracking because of its well-defined acid sites, high product selectivity, and outstanding stability. The relationship between zeolite structure and catalytic performance is still not well understood. Therefore, on either as prepared or purposely modified ZSM-5 zeolites, we made a systematic investigation of how acid density and pore structure affect catalytic performance in this work. Our results demonstrate that Bronsted acid site density had profound impact on the catalyst lifetime and aromatic selectivity. The relationship between Bronsted acid site density and catalyst lifetime displays a tendency that catalyst life-time declines with acid site density at the beginning, then rises up, instead of a linear correlation. Also, the increase of mesoporosity extends the catalyst lifetime to some extent. This information can give us a better understanding of how to design higher-performance catalysts for chemical upcycling of waste plastics.