文献类型：期刊文献

英文题名：Chemical upcycling of waste polyolefinic plastics to low-carbon synthetic naphtha for closing the plastic use loop

作者：Dai, Leilei[1,2,3];Zhou, Nan[1,2];Lv, Yuancai[1,2];Cheng, Yanling[1,2,4];Wang, Yunpu[3];Liu, Yuhuan[3];Cobb, Kirk[1,2];Chen, Paul[1,2];Lei, Hanwu[5];Ruan, Roger[1,2]

第一作者：Dai, Leilei

通讯作者：Ruan, R[1]

机构：[1]Univ Minnesota, Ctr Biorefining, 1390 Eckles Ave, St Paul, MN 55108 USA;[2]Univ Minnesota, Dept Bioprod & Biosyst Engn, 1390 Eckles Ave, St Paul, MN 55108 USA;[3]Nanchang Univ, Engn Res Ctr Biomass Convers, Nanchang 330047, Jiangxi, 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

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, Minneapolis, MN 55455 USA.

年份：2021

卷号：782

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20211510213793);Scopus(收录号：2-s2.0-85103991504);WOS:【SCI-EXPANDED(收录号:WOS:000655625700020)】；

基金：We acknowledge the financial support from National Natural Science Foundation of China (21766019, 21878137), The Centrally Guided Local Science Technology Special Project (20202ZDB01012), the Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province (20204BCJ23011), China Scholarship Council (CSC), Xcel Energy, Resynergi, University of Minnesota MnDrive Environment Program MNE12, and 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：Waste plastics; Catalytic pyrolysis; Naphtha; Circular economy

摘要：Designing an effective pathway to remove waste plastics from landfill and incineration plants and create a circular economy requires a more appropriate technology beyond the conventional mechanical recycling by melting and re-molding. This study aims to convert waste plastic into low-carbon synthetic naphtha which can be used as a feedstock for new plastic production, via a new and simple technical approach. To be specific, waste plastics are decomposed and reformed into naphtha fractions via a one-step catalytic pyrolysis over Al2O3 pillared montmorillonite clay catalyst. Experimental results show that Al2O3 pillared montmorillonite clay produces up to 60.3% C-5-C-12 alkanes, while ZSM-5 gives high contents of aromatics (46%) and olefins (35%). The promising results of Al2O3 pillared M-clay may be due to the special features of this material, including the large pore size and Al2O3-induced active sites (more Bronsted acid sites). The further batch experiments confirm the feasibility of scaling up and processing the polyolefinic plastic mixture. (C) 2021 Elsevier B.V. All rights reserved.