Xu Yun, Schrader Wolfgang
Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany.
iScience. 2022 Mar 8;25(4):104036. doi: 10.1016/j.isci.2022.104036. eCollection 2022 Apr 15.
In daily life humankind is producing a significant amount of garbage, creating a great environmental concern. However, garbage consists of high amounts of carbon based materials, making it a very useful resource. An easy way to use it is to produce transport fuels obtained through pyrolysis. Multiple plastic waste materials were investigated here. Thermogravimetric analysis (TGA) of individual polymers shows that almost complete conversion could be achieved. More than 70% liquid fuels were derived from pyrolysis of polypropylene, polystyrene at 450°C, and low-/high-density polyethylene at 500°C. Using gas chromatography/high-resolution mass spectrometry (GC/HR-MS) allows studying the thermal transformation and proposing a mechanism. An examination of carbon number distribution reveals the potential of plastic liquid fuels, which can be used as an alternative to partial substitution of fossil-fuel-derived gasoline and diesel fuel and also provides a final use of polymer materials, which otherwise would be deposited on waste dumps.
在日常生活中，人类产生了大量垃圾，引发了严重的环境问题。然而，垃圾含有大量碳基材料，使其成为一种非常有用的资源。一种简单的利用方式是通过热解生产运输燃料。这里对多种塑料废料进行了研究。对单个聚合物的热重分析（TGA）表明几乎可以实现完全转化。在450°C下对聚丙烯、聚苯乙烯以及在500°C下对低密度/高密度聚乙烯进行热解，可得到超过70%的液体燃料。使用气相色谱/高分辨率质谱（GC/HR-MS）能够研究热转化过程并提出一种机制。对碳数分布的研究揭示了塑料液体燃料的潜力，其可作为部分替代化石燃料衍生的汽油和柴油的替代品，还为聚合物材料提供了最终用途，否则这些聚合物材料会被倾倒在垃圾场上。
