Isobutene by dehydroisomerization of normal butane
AssigneeThe British Petroleum Company p.l.c.
InventorsAlexander J. Kolombos, Clive D. Telford, Dennis Young
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Abstract
This invention relates to a method of dehydroisomerizing n-butane by contacting at elevated temperatures a feedstock containing n-butanes with a catalyst composition containing a gallium compound on a support. The process affords a valuable method of producing iso-butene which is a basic chemical feedstock for a number of products including polyisobutenes, methacrolein and methyl tertiary butyl ether, to name a few. The last named compound can be prepared by reacting isobutene with methanol and is a convenient means of separating iso-butene from the products of the dehydroisomerization stage.
Claims8
A process for dehydroisomerisation of a hydrocarbon feedstock containing normal butane to isobutene which comprises bringing the feedstock at an elevated temperature into contact in a single stage with a catalyst composition comprising an element from Group IIIa of the Periodic Table or a compound thereof in combination with a support of .alpha.-value below 45, said support being a zeolite selected from the group consisting of an aluminosilicate, a silicalite, a metal tectosilicate, and a boralite.
Dependencies are inferred from the claim text.