Catalytic Dehydrogenation

Linde has developed a new process for selective catalytic dehydrogenation of propane to polymer-grade propylene.

The Linde PDH process offers remarkable economical advantages compared to competing technologies. It's moderate reaction temperature and isothermal operating conditions result in maximum selectivity to propylene.

The reaction section includes three identical gas fired dehydrogenation reactors of the well proven steamreformer type. Two of these reactors operate under dehydrogenation conditions, while the third reactor is regenerated by combustion of the coke deposit on the catalyst with a steam/air mixture. The dehydrogenation product from the reaction section is routed to the separation section, in which polymer grade propylene and as by products a hydrogen-rich tailgas and a (C4+)- fraction are separated by the application of proven technique, like low temperature fractionation and a C3-splitter.

Catalytic Dehydrogenation

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