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Liquid oils produced from pyrolysis of plastic wastes with heat carrier in rotary kiln
Fuel Processing Technology ( IF 7.5 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.fuproc.2020.106455
Yutao Zhang , Guozhao Ji , Chuanshuai Chen , Yinxiang Wang , Weijian Wang , Aimin Li

Abstract The conversion of plastic waste to energy product is a promising solution to both energy shortage and environment pollution. In this study, plastic wastes were pyrolyzed in a rotary kiln to recover liquid oils that could be used as the source of valuable chemicals or fuels. The effects of filling ratio of heat carriers, and plastic wastes types on the product spectrum were investigated. The dynamic models of heat carrier in pyrolysis of plastic wastes showed that the suitable filling ratio of heat carrier for oil production is 15%. The liquid oils generated from a simulated mixture of plastic wastes pyrolysis had the most gasoline range hydrocarbons and reached to 89.1%. The simulated distillation of liquid oils showed that the gasoline fraction was between 49% and 84.5%. The NMR analysis of liquid oils obtained from polyethylene and a simulated mixture of plastic wastes pyrolysis showed that loading more heat carrier in the rotary kiln was favorable to produce olefins and paraffin. The NMR analysis and the heat carrier models revealed that the greater heat transfer enhanced the H+ transfer in radical reactions.

中文翻译:

废塑料在回转窑中用热载体热解制得的液态油

摘要 将塑料垃圾转化为能源产品是解决能源短缺和环境污染的一个有前景的解决方案。在这项研究中,塑料废物在回转窑中被热解以回收可用作有价值化学品或燃料来源的液态油。研究了热载体的填充率和塑料废物类型对产品光谱的影响。废塑料热解热载体动力学模型表明,采油热载体的适宜填充率为15%。由塑料废物热解的模拟混合物产生的液体油具有最多的汽油范围碳氢化合物,达到 89.1%。液态油的模拟蒸馏表明汽油馏分在49%~84.5%之间。由聚乙烯和塑料废物热解的模拟混合物获得的液体油的核磁共振分析表明,在回转窑中装载更多的热载体有利于生产烯烃和石蜡。核磁共振分析和热载体模型表明,更大的热传递增强了自由基反应中的 H+ 传递。
更新日期:2020-09-01
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