【摘要】 丙烷脱氢（PDH）是一种直接生产丙烯的工业技术，受到了广泛的关注并实现了大规模应用。目前，商用铂基催化剂由于活性物质烧结和焦炭沉积而存在快速失活和稳定性差的问题。基于此，首先分析了铂基催化剂催化丙烷脱氢的反应动力学及活性位点，并指出铂基催化剂的分散性和稳定性是决定脱氢性能的关键因素。然后，从调控催化剂活性中心和载体修饰两个角度出发系统地总结了提高铂基丙烷脱氢催化剂稳定性策略。最后，对丙烷脱氢催化剂未来发展前景进行了展望，指出基于反应机理对铂基催化剂结构进行精准设计以及开发新型可替代铂基催化剂是目前丙烷脱氢工艺研究的重要方向，为丙烷脱氢制丙烯的进一步工业应用提供新的思路。更多还原

【Abstract】 Propane dehydrogenation(PDH) is an industrial technology for direct propylene production,which has received extensive attention and realized large-scale application.At present,the commercial platinum-based catalysts suffer from fast deactivation and inferior stability resulting from active species sintering and coke depositing.Based on the above problems,the reaction kinetics and active sites of the platinum based catalysts for propane dehydrogenation were analyzed,and it was pointed out that dispersion and stability of Pt nanoclusters were the key factors affecting the dehydrogenation performance.Then the strategies to improve the stability of the platinum-based propane dehydrogenation catalyst were systematically summarized from the perspectives of controlling the active sites of the catalyst and modifying the support.Finally,the future development prospects of propane dehydrogenation catalysts were discussed,and it was pointed out that the precise design of platinum-based catalyst structures based on reaction mechanisms and development of new alternative platinum-based catalysts were important directions in the research of propane dehydrogenation process,providing new ideas for further industrial application of propane dehydrogenation to propylene.更多还原