Process for reducing the benzene content of petrols

Details Process for reducing the benzene content of petrols Process for reducing the benzene content of petrols

1995-06-07

1996-07-09

Cross, E. Rollins

Chemistry of hydrocarbon compounds

Saturated compound synthesis

By isomerization

585253, 585258, 585260, 585261, 208138, 208139, 208141, C07C 513, C07C 522, C10G 3506

Patent

active

055346588

ABSTRACT:
The invention concerns a process for reducing the benzene content of petrol fractions and isomerizing paraffins in the presence of an isomerization catalyst comprising 4 to 15% of at least one halogen and at least one metal from group VIII deposited on a support composed of a mixture of specific proportions of eta alumina and gamma alumina, in which isomerization is carried out on a mixture of a) a feed with the following composition by weight: 40% to 80% of paraffins, 0.5% to 7% of cyclic hydrocarbons and 6% to 45% of aromatics, and with a maximum distillation temperature of between 70.degree. C. and 90.degree. C., b) a C.sub.5 -C.sub.6 cut which is generally a straight run cut, and c) a chlorine-containing compound providing a concentration of 50-5000 ppm of chlorine in the mixture.

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