首页|Parameter selection for the hydroconversion of waste polyethylene plastic under mild conditions:A comprehensive evaluation
Parameter selection for the hydroconversion of waste polyethylene plastic under mild conditions:A comprehensive evaluation
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The hydrogenolysis/hydrocracking of waste polyethylene(PE)has recently been intensively studied,with the general pursuit of low-temperature reaction conditions,increased oil-phase yield,and narrower carbon chain distribution.Before this,we utilized a ball-milled ZSM-22 catalyst loaded with Ru nanoparticles(NPs),which exhibited excellent hydroconversion performance.It deconstructed PE into＞80 wt.％oil products under low temperatures and short reaction times.Herein,we investigated the influence of varying temperature/pressure parameters on the degree of specific hydrocracking/internal hydrogenolysis/terminal hydrogenolysis reactions.From the comprehensive energy efficiency perspective,including stirring,reaction,and product separation,as well as taking into account the degree of product isomerization and catalyst lifespan,we analyzed the optimization of parameters.This research abandons the notion that lower temperatures are better and proposes a more comprehensive evaluation framework for low-consumption hydroconversion of PE to produce high-value products.
plastic upcyclingpolyethylenehydrocrackinghydrogenolysiscomprehensive energy efficiency
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