Chemical process making aromatic hydrocarbons over gallium catalyst
AssigneeThe British Petroleum Company p.l.c.
InventorsReginald Gregory, Alexander John Kolombos
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Abstract
This invention relates to a process for aromatizing unsaturated hydrocarbons in the presence of a supported gallium catalyst. Xylenes may be prepared from C.sub.4 feedstock by this route.
Claims23
A process for the production of aromatic hydrocarbons comprising subjecting an unsaturated hydrocarbon containing at least six carbon atoms to aromatisation in the presence of a catalyst consisting essentially of elemental gallium or a compound of gallium deposited on a support.
A process for producing xylenes directly from a C.sub.4 feedstock containing one or more of butanes, butenes and butadiene by passing the feedstock over an aromatisation catalyst consisting essentially of elemental gallium or a gallium compound deposited on a support at a temperature between 400.degree. and 700.degree. C and a pressure between 1 and 20 atmospheres.
A process for the production of aromatic hydrocarbons comprising subjecting an unsaturated hydrocarbon containing at least six carbon atoms to aromatisation in the presence of a catalyst consisting essentially of (a) elemental gallium or a compound of gallium, and (b) one or more of the metals nickel, cobalt, iron, manganese, thallium, palladium, platinum, indium, germanium, chromium, tin, and zinc deposited on a support.
A process for producing xylenes directly from a C.sub.4 feedstock containing one or more of butanes, butenes and butadiene by passing the feedstock over an aromatisation catalyst consisting essentially of (a) elemental gallium or a gallium compound, and (b) one or more of the metals nickel, cobalt, iron, manganese, thallium, palladium, platinum, indium, germanium, chromium, tin and zinc deposited on a support.
Dependencies are inferred from the claim text.