Enhanced production of propylene from higher hydrocarbons
Patent 5026936 Issued on June 25, 1991. Estimated Expiration Date: 
October 2, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 2, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3431316 Catalytic process for preparing olefins by hydrocarbon pyrolysis Small olefin interconversions Patent #: 4613721 InventorsAssigneeApplicationNo. 415747 filed on 10/02/1989US 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 catalystExaminersPrimary: Davis, Curtis R.Attorney, Agent or FirmForeign Patent References
International ClassC07C 004/06AbstractThe 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. |
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