期刊
JOURNAL OF CLEANER PRODUCTION
卷 314, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2021.127966
关键词
Textile and plastic waste; Catalytic pyrolysis; Diels-alder reactions; USY zeolite; Sustainable waste management; Low-carbon biorefinery
资金
- National Natural Science Foundation of China [52006106]
- Natural Science Foundation of Jiangsu Province [BK2020789]
- China Postdoctoral Science Foundation [2020TQ0154]
- Hong Kong Research Grants Council [PolyU 15217818]
- Jiangsu Province Key Laboratory of Biomass Energy and Materials [JSBEM-S-202002]
Using USY zeolite for catalytic degradation of textile waste can significantly increase furan production, while plastic waste PE is more suitable than PP for producing aromatic hydrocarbons when co-fed with textile waste.
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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