How is Dehydrogenation Of Alkanes Using Chromic Oxide-alumina carried out?

Answer 1

An alkane feed is contacted at sub-atmospheric pressure and at an elevated temperature with a preheated charge of Chromic Oxide-alumina catalyst in a fixed bed reactor. Carbon is deposited on the catalyst as the reaction proceeds. In order to provide the necessary heat of reaction it is usual after a short while to switch the alkane feed to another reactor whilst the catalyst of the first mentioned reactor is regenerated by burning off the deposited carbon with hot air.