PROCESS FOR THE PREPARATION OF BUTADIENE FROM BUTENES BY OXIDATIVE DEHYDROGENATION

摘要

A process for the production of a diene by dehydrogenation of an alkene comprises the step of reacting a feed stream containing said alkene over a metal oxide catalyst at a temperature sufficient to effect conversion of said alkene to said diene to form a product stream containing said diene, characterised in that said feed stream comprises said alkene, oxygen, optionally an inert gas and optionally steam, wherein the molar ratio of alkene : O2 : steam in said feed stream is in the range 1 : 0.5 -1 : 0 -5.