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聚乙烯二甲酸盐通过与低密度和高密度聚乙烯的共同热解转化为液体燃料,使用废作为催化剂

Hussain Gulab¹, Shahi Malik¹

¹Department of Chemistry, Bacha Khan University, Charsadda, Pakistan.

Environmental technology

|June 16, 2023

概括

塑料废物,包括聚乙烯二甲 (PET) 与聚乙烯 (PE) 的共同热解有效地将废物转化为有价值的热解油. 与热方法相比,催化共热解显著提高了石油产量和质量.

科学领域:

化学工程是化学工程的重要组成部分.
材料科学材料科学材料科学
环境科学环境科学

背景情况:

聚乙烯二甲 (PET) 的 Pyrolysis 单独产生主要是和气体,限制了它的效用.
与线性聚乙烯 (低密度聚乙烯-LDPE和高密度聚乙烯-HDPE) 的联合热解提供了一个将PET转化为液体燃料的途径.
LDPE/HDPE的降解碎片与PET的环之间的相互作用可以增强热解油中的芳香成分.

研究的目的:

调查PET与LDPE和HDPE的共同热解,以生产热解油.
为了优化反应条件以最大限度地提高热解油的产量.
评估废催化剂对石油产量和成分的影响.

主要方法:

在优化条件下 (500°C,0.5°C/s加热速率,1小时反应时间,20克聚合物混合物:20%PET,40%LDPE,40%HDPE) 在一批钢铁火解剂中进行了联合火解实验.
废弃的颗粒被用作经济催化剂.
产品分析包括分数蒸,FT-IR光谱和气色谱-质谱 (GC-MS).

主要成果:

催化共热解显著增加了热解油产量,达到30.2%,而热共热解的产量为8%.
催化油产生了46%的汽油,31%的煤油和23%的柴油系列部分,具有类似燃料的特性.
催化共热解产生较短链的碳化合物 (烯,异烯) 和较高的纳/芳香物;热共热解产生长链烯.

结论:

聚乙烯与LDPE和HDPE的联合热解,特别是使用废催化剂,是塑料废弃物回收成燃料的有效方法.
催化过程提高了热解油的产量和质量,产生适合汽油,煤油和柴油的分量.
催化方法促进了热解油中理想的碳化合物结构的形成,包括芳香物.

关键词:

催化剂是一种催化剂.高密度聚乙烯高密度聚乙烯低密度聚乙烯的低密度聚乙烯.聚乙烯四甲酸的使用情况.热解油的热解油是什么

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