A Review of Platinum-Based Catalysts in the Dehydrogenation of Propane to Propylene

Propylene is an important feedstock for manufacturing various products such as polypropylene, polyacrylonitrile, acrolein, acrylic acid, and so forth. Formerly, propylene was typically produced by fluid catalytic cracking and steam cracking. Due to the significant demand growth for propylene, direct production methods of propylene from the propane dehydrogenation method have been highly noticed by industries. The process of propane dehydrogenation has been commercialized by different companies and the most critical differences among different technologies are the type of reactor and their used catalyst. Platinum-based catalysts are the most widely used ones in this technology, and due to their high price in new catalyst generation, it has been attempted to use the least amount of platinum in the catalyst. Therefore, this article discussed the process of dehydrogenation of propane to propylene in general, then the platinum-based should be examined in terms of active sites, bases used, and types of promoters to increase efficiency. In conclusion, the patents related to the production of platinum-based catalysts by UOP have been collected and discussed.