PROCESS FOR THE PRODUCTION OF OLEFINS

摘要

The present invention relates to a process for the production of an olefin, said process comprising passing a mixture of a hydrocarbon and an oxygen-containing gas through a catalyst zone which is capable of supporting combustion beyond the fuel rich limit of flammability to produce said olefin, said catalyst zone comprising at least a first catalyst bed and a second catalyst bed, and wherein the second catalyst bed is located downstream of the first catalyst bed, is of a different composition to the first catalyst bed and has the general formula of: M<1>aM<2>bM<3>cOz wherein M<1> is selected from groups IIA, JIB, IIIB, IVB, VB, VIB, VIIB, lanthanides and actinides, M<2> is selected from groups IIA, IB, JIB, IIIB, IVB, VB, VIB, and M<3> is selected from groups IIA, IB, IIB, IIIB, IVB, VB, VIB and VIIIB.