Reduction of benzene in gasolines

Details Reduction of benzene in gasolines Reduction of benzene in gasolines

C - Chemistry, Metallurgy

10

G

C10G 45/64 (2006.01) C10G 29/20 (2006.01) C10G 69/00 (2006.01)

Patent

CA 2099607

2099607 9215655 PCTABS00016 The benzene concentration in the gasoline pool of a petroleum refinery is decreased by alkylation of the benzene in a catalytic dewaxing reactor using the olefinic by-products from the dewaxing reaction as alkylating agents. The catalytic dewaxing is preferably carried out in the presence of an intermediate pore size zeolite such as ZSM-5 using a distillate or lube boiling range dewaxing feed. The benzene rich feed preferably contains less than about 2 % C7+ aromatics in order to reduce alkylation of non-objectionable species in the reformate.

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