Understanding of the interaction between cellulose and various plastics is crucial for designing waste-to-energy processes. In this work, co-pyrolysis of polystyrene (PS) and cellulose was performed in a Py-GC×GC/MS system at 450–600 °C with ratios 70:30, 50:50, and 30:70. Polypropylene (PP), polyethylene (PE), and polyethylene terephthalate (PET) were then added to the mixture with different ratios. It was found that co-pyrolysis of PS and cellulose promotes the formation of aromatic products with a large increase in the yield of ethylbenzene as compared to the calculated value from individual feedstock. This indicates interactions between cellulose and PS pyrolysis products. Observations from experiments including more than one type of plastics indicate that the interactions between different plastics are more pronounced than the interaction between plastics and cellulose.

中文翻译：

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混合塑料和纤维素的共热解：Py-GC×GC / MS的相互作用研究

了解纤维素与各种塑料之间的相互作用对于设计废物转化为能源的过程至关重要。在这项工作中，聚苯乙烯（PS）和纤维素在450-600°C的Py-GC×GC / MS系统中以70：30、50：50和30:70的比例进行热解。然后将聚丙烯（PP），聚乙烯（PE）和聚对苯二甲酸乙二酯（PET）以不同的比例添加到混合物中。已发现，与单独原料的计算值相比，PS和纤维素的共热解促进了芳族产物的形成，乙苯的收率大大提高。这表明纤维素和PS热解产物之间的相互作用。