Recent Advances in Metal−Zeolite Catalysts for Direct Propane Dehydrogenation
Bofeng Zhang, Mingxia Song, Mingrui Xu, Guozhu Liu
Abstract
Propylene is one of the most important raw materials for producing various chemicals and fuels. Propane dehydrogenation (PDH) is a promising technology to produce propylene. Metal−zeolite catalysts, including an encapsulated structure and framework-associated sites, have been paid increasing attention owing to their high thermal stability and unique electronic properties. In this review, we summarized the recent progress on Pt- and non-noble-metal-oxide-based zeolite catalysts applied in PDH. The influence of zeolite morphology was also analyzed and discussed. We highlighted atomically dispersed Pt clusters/single atom anchored by a second metal in zeolites, which exhibited superior catalytic performance in PDH compared to Pt nanoparticles. Finally, we point out the current challenges and future perspectives in metal−zeolite catalysts for further development.