Process for the production of olefins

Details Process for the production of olefins Process for the production of olefins

C - Chemistry, Metallurgy

10

G

C10G 11/22 (2006.01) C07C 5/48 (2006.01) C07C 11/02 (2006.01)

Patent

CA 2526456

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: M1aM2bM3cOz wherein M1 is selected from groups IIA, JIB, IIIB, IVB, VB, VIB, VIIB, lanthanides and actinides, M2 is selected from groups IIA, IB, JIB, IIIB, IVB, VB, VIB, and M3 is selected from groups IIA, IB, IIB, IIIB, IVB, VB, VIB and VIIIB.

Cette invention concerne un procédé de production d'une oléfine, lequel procédé consiste à faire passer un mélange composé d'un hydrocarbure et d'un gaz contenant de l'oxygène dans une zone catalytique qui est capable de résister à la combustion au-delà de la limite supérieure d'inflammabilité afin que cette oléfine soit produite, laquelle zone catalytique comprend au moins un premier lit catalytique et un second lit catalytique, lequel second lit catalytique est situé en aval du premier lit catalytique, est d'une composition différente de celle du premier lit catalytique et présente la formule générale M?1¿¿a?M?2¿¿b?M?3¿¿c?O¿z? dans laquelle M?1¿ est sélectionné parmi les groupes IIA, IIB, IIIB, IVB, VB, VIB, VIIB, les lanthanides et les actinides ; M?2¿ est sélectionné parmi les groupes IIA, IB, IIB, IIIB, IVB, VB, VIB ; et M?3¿ est sélectionné parmi les groupes IIA, IB, IIB, IIIB, IVB, VB, VIB et VIIIB.

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