초록 ▼

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 rea

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.

대표청구항 ▼

[ We claim:] [1.] A process for improving the conversion of a hydrocarbon feedstock to light olefins comprising contacting a hydrocarbon feedstock containing at least one diolefin, in a concentration sufficient to increase conversion of the feedstock to light olefins, with a cracking catalyst compri

[ We claim:] [1.] A process for improving the conversion of a hydrocarbon feedstock to light olefins comprising contacting a hydrocarbon feedstock containing at least one diolefin, in a concentration sufficient to increase conversion of the feedstock to light olefins, with a cracking catalyst comprising an acidic zeolite; and cracking the hydrocarbon feedstock to form light olefins.