CATALYTIC DEHYDROGENATION OF ALKANES WITH SIMULTANEOUS OXIDATION OF HYDROGEN

摘要

A process for the net catalytic oxidative dehydrogenation of alkanes to produce alkenes is provided. The process involves simultaneous equilibrium dehydrogenation of alkanes to alkenes and combustion of the hydrogen formed to drive the equilibrium dehydrogenation reaction further to the product alkenes. In the present reaction, the alkane feed is passed, along with oxygen, into a reactor containing both an equilibrium dehydrogenation catalyst and a selective metal oxide combustion catalyst, whereby the alkane is dehydrogenated and the hydrogen produced is simultaneously and selectively combusted. This particular mode of operation is termed a same reactor, cofed oxygen mode. The equilibrium dehydrogenation catalyst may comprise platinum, and the selective metal oxide combustion catalyst may contain bismuth, antimony, indium, or molybdenum, or a mixture thereof.