Marquez Carlos, Martin Cristina, Linares Noemi, De Vos Dirk
Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
Department of Physical Chemistry, Faculty of Pharmacy, University of Castilla-La Mancha, C/José María Sánchez Ibañez s/n, 02071, Albacete, Spain.
Mater Horiz. 2023 May 9;10(5):1625-1640. doi: 10.1039/d2mh01215d.
Polystyrene (PS) is one of the most popular plastics due to its versatility, which renders it useful for a large variety of applications, including laboratory equipment, insulation and food packaging. However, its recycling is still a challenge, as both mechanical and chemical (thermal) recycling strategies are often cost-prohibitive in comparison to current disposal methods. Therefore, catalytic depolymerization of PS represents the best alternative to overcome these economical drawbacks, since the presence of a catalyst can improve product selectivity for chemical recycling and upcycling of PS. This minireview focuses on the catalytic processes for the production of styrene and other valuable aromatics from PS waste, and it aims to lay the ground for PS recyclability and long-term sustainable PS production.
聚苯乙烯（PS）因其多功能性而成为最受欢迎的塑料之一，这使其可用于多种应用，包括实验室设备、绝缘材料和食品包装。然而，其回收利用仍然是一个挑战，因为与目前的处置方法相比，机械和化学（热）回收策略通常成本过高。因此，PS的催化解聚是克服这些经济缺点的最佳选择，因为催化剂的存在可以提高PS化学回收和升级回收的产物选择性。本综述聚焦于从PS废料生产苯乙烯和其他有价值芳烃的催化过程，旨在为PS的可回收性和长期可持续的PS生产奠定基础。
