A new theoretical and practical framework has been developed through operando study of the zeolite catalytic cracking of low‐density polyethylene (as a model reaction) under reaction conditions. Results show that microporous ZSM‐5 gives rise to less cracking products. Hierarchical ZSM‐5 zeolites are more active cracking catalysts, rendering more C₂‐C₅ hydrocarbons, with a delayed deactivation due to the secondary porosity. This tool in combination with thermogravimetric analysis provides complementary and valuable information for the study, and design of advanced catalysts.

中文翻译：

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Operando研究揭示了低密度聚乙烯裂解用分层ZSM-5催化剂的优异裂解活性和稳定性

通过对反应条件下低密度聚乙烯的沸石催化裂化（作为模型反应）的操作研究，开发了一个新的理论和实践框架。结果表明，微孔ZSM-5产生的裂化产物更少。ZSM-5分子筛是更具活性的裂化催化剂，可提供更多的C _2- C ₅烃，并且由于二次孔隙性而导致钝化延迟。该工具与热重分析相结合，为高级催化剂的研究和设计提供了补充和有价值的信息。