Eswaramoorthy Muthusamy - Catalytic conversion of propane to propylene: strategies and challenges скачать в хорошем качестве

Eswaramoorthy Muthusamy - Catalytic conversion of propane to propylene: strategies and challenges

Catalytic conversion of propane to propylene: strategies and challenges Propylene is the basic raw material for the production of polypropylene, propylene oxide, acrolein, acrylonitrile, and acetone etc.1 Propylene has seen a steady growth in demand over the past years which is expected to further increase in the future. Conventional propylene production is heavily based on fluid catalytic cracking and steam cracking of naphtha and light diesel. Recent shift in the raw materials from naphtha to shale gas for cracking industry has reduced the propylene production creating a supply demand gap.2 Hence, on-purpose propylene production routes such as oxidative and non-oxidative catalytic dehydrogenation of propane have been hugely explored in recent years. Non-oxidative propane dehydrogenation (PDH) has advantage that it exclusively produces propylene. However, it is limited by thermodynamic equilibrium due to its endothermic nature. Oxidative dehydrogenation of propane (ODH) on the other hand, is exothermic in nature and therefore, high yields can be obtained at low temperatures. Over-oxidation of the reactant and products to CO2 is one disadvantage of this route.3 In this talk, I will discuss various challenges and opportunities associated with ODH and PDH routes. Further, I will also discuss our recent works on metal free catalysts for ODH and PDH process respectively, where we have tried to address these challenges.4 References: 1 Chen, S. et al. Propane dehydrogenation: catalyst development, new chemistry, and emerging technologies. Chemical Society Reviews 50, 3315-3354 (2021). 2 Sattler, J. J. et al. Catalytic dehydrogenation of light alkanes on metals and metal oxides. Chemical reviews 114, 10613-10653 (2014). 3 Grant, J. et al. Selective oxidative dehydrogenation of propane to propene using boron nitride catalysts. Science 354, 1570-1573 (2016). 4 Chaturbedy, P. et al. Oxidative dehydrogenation of propane over a high surface area boron nitride catalyst: Exceptional selectivity for olefins at high conversion. ACS omega 3, 369-374 (2018).