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

Jia Wang, Jianchun Jiang, Jinhua Ding, Xiaobo Wang, Yunjuan Sun, Roger Ruan, Arthur J. Ragauskas, Yong Sik Ok, Daniel C.W. Tsang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

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.

Original languageEnglish
Article number127966
JournalJournal of Cleaner Production
Volume314
DOIs
Publication statusPublished - 10 Sep 2021

Keywords

  • Catalytic pyrolysis
  • Diels-alder reactions
  • Low-carbon biorefinery
  • Sustainable waste management
  • Textile and plastic waste
  • USY zeolite

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Science(all)
  • Strategy and Management
  • Industrial and Manufacturing Engineering

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