文献类型：期刊文献

英文题名：Pyrolysis-catalysis for waste polyolefin conversion into low aromatic naphtha

作者：Dai, Leilei[1,2,3];Zhou, Nan[1,2];Lv, Yuancai[1,2];Cobb, Kirk[1,2];Cheng, Yanling[1,2,4];Wang, Yunpu[3];Liu, Yuhuan[3];Chen, Paul[1,2];Zou, Rongge[5];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, Minist Educ, Engn Res Ctr Biomass Convers, State Key Lab Food Sci & Technol, 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：245

外文期刊名：ENERGY CONVERSION AND MANAGEMENT

收录：;EI(收录号：20213110711023);Scopus(收录号：2-s2.0-85111519535);WOS:【SCI-EXPANDED(收录号:WOS:000693426900004)】；

基金：We acknowledge the financial support from the 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 Bio-refining. 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; Pyrolysis; Tandem catalysis; Naphtha

摘要：The global waste plastic crisis, caused by overconsumption of single-use plastics, is threatening ecological systems and public health, worldwide. This study presents a novel catalytic conversion of waste polyolefinic plastics to low aromatic naphtha for new plastic manufacturing by a tandem catalysis process. Zn/SBA-15 was found to be an effective heterogeneous catalyst for cracking high density polyethylene (HDPE) pyrolytic wax into short chain olefins. This catalyst shows a much higher activity than pure catalysts or SBA-15 catalysts that were modified with other metals. This tandem catalysis system was also applicable to catalytic reforming of various waste polyolefins including HDPE, low density polyethylene (LDPE), and polypropylene (PP), producing high quality naphtha with a C5-C12 paraffin selectivity of 50-71 % peak area. Furthermore, the pure and real-world plastic mixture can also be used to produce high quality naphtha, with a C5-C12 paraffin selectivity of 60.39 % peak area and 57.16 % peak area, respectively. This new plastic to low-aromatic naphtha technology highlights the feasibility of upcycling waste plastics into virgin plastic products.