Catalytic process for preparing olefins by hydrocarbon pyrolysis
Small olefin interconversions Patent #: 4613721
ApplicationNo. 415747 filed on 10/02/1989
US Classes:585/315, With hydrocarbon recycle from later to earlier synthesis585/324, To produce unsaturate585/643, By alkyl transfer, e.g., disproportionation, etc.585/644, Plural stage or averaging585/648, By C content reduction, e.g., cracking, etc.585/650, Ethylene product per se585/651, Using catalyst585/653Using catalyst
ExaminersPrimary: Davis, Curtis R.
Attorney, Agent or Firm
Foreign Patent References
International ClassC07C 004/06
AbstractThe present invention provides a process for the preparation of propylene from C4 or higher feed by a combination of cracking and metathesis wherein higher hydrocarbon is cracked to form ethylene and propylene and at least a portion of the ethylene is metathesized to propylene.