Enhanced olefin yields in a catalytic process with diolefins

Details Enhanced olefin yields in a catalytic process with diolefins Enhanced olefin yields in a catalytic process with diolefins

1997-06-10

2000-07-18

Griffin, Walter D.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208118, 208 85, 585650, 585651, 585653, C10G 1100, C10G 1102, C07C 402

Patent

active

06090271&

ABSTRACT:
The invention provides a process for improving the conversion of a hydrocarbon feedstock to light olefins comprising mixing a hydrocarbon feedstock with a diolefin to form a mixture; and thereafter contacting the mixture with a zeolite cracking catalyst. Preferably the catalyst is contacted at a reaction temperature within the range of about 500.degree. C. to about 750.degree. C. and the feedstock flows at a weight hourly space velocity in the range of about 0.1 Hr.sup.-1 WHSV to about 100 Hr.sup.-1 WHSV. The diolefin can be a straight, branched, or cyclic hydrocarbon having at least two II bonds. Preferably diolefin is a hydrocarbon of 4 to 20 carbons.

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"Atlas of Zeolite Structure Types" by W. M. Meier, D. H. Olson and C. H. Baerlocher (4th edn., Butterworths/Intl. Zeolite Assc. [1966]).

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