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Promoting Diels-Alder reactions to produce bio-BTX: Co-aromatization of textile waste and plastic waste over USY zeolite

Authors
Wang, JiaJiang, JianchunDing, JinhuaWang, XiaoboSun, YunjuanRuan, RogerRagauskas, Arthur J.Ok, Yong SikTsang, Daniel C. W.
Issue Date
10-9월-2021
Publisher
ELSEVIER SCI LTD
Keywords
Catalytic pyrolysis; Diels-alder reactions; Low-carbon biorefinery; Sustainable waste management; Textile and plastic waste; USY zeolite
Citation
JOURNAL OF CLEANER PRODUCTION, v.314
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF CLEANER PRODUCTION
Volume
314
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/137666
DOI
10.1016/j.jclepro.2021.127966
ISSN
0959-6526
Abstract
Producing commodity aromatic hydrocarbons from textile waste is a promising approach to promote carbon neutrality and circular economy. Catalytic degradation of flax waste (FW) to generate furans and its subsequent Diels-Alder transformation to monocyclic aromatic hydrocarbons over USY zeolite were conducted. Experimental results indicated that USY catalyzed FW resulted in a 5.5-fold increase in furans production compared with the non-catalytic trial. The Si/Al molar ratio in USY played a determining role in furans formation, and a 5-fold increase was observed over USY with a Si/Al ratio of 5.3 as opposed to that with a Si/Al ratio of 11. Plastic waste, polyethylene (PE), co-fed with FW yielded 1.6 times higher aromatic hydrocarbons than polypropylene (PP). The selectivity to aromatic hydrocarbons reached 81.6% under 20% PE co-fed with 80% FW, in which benzene, toluene, and xylenes (BTX) were predominant products with the maximum selectivity of 68%. This study presents a cleaner approach for value-added resource recovery and sustainable management of textile and plastic waste.
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