| 초록 |
The increasing global propylene demand has motivated the great attention on propane dehydrogenation (PDH) for on-purpose propylene production. However, rapid deactivation of catalysts due to coke deposition and metal catalyst sintering limits an industrial application. As a promising candidate, Pt-based catalysts have been widely studied with various supports to improve metal catalyst dispersion and coke resistance. In this work, we focused on the PDH catalytic properties of Beta zeolites as a support for Pt-Sn based catalysts because zeolite is advantageous of large surface area and acid sites for high metal dispersion and promoting catalytic activity. Based on understanding physicochemical properties and reaction mechanism of Pt-Sn supported Beta zeolite, a typical reaction trend as reaching the highest propylene selectivity after a certain amount of reaction time was revealed. |
