Zirconium hydroxide supported metal and heteropolyacid catalysts
AssigneeExxon Research & Engineering Co.
InventorsStuart L. Soled, Gary B. McVicker, Sabato Miseo, William E. Gates
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Abstract
The present invention is directed to novel catalyst compositions, their preparation, and their use in a selective paraffin isomerization process. The solid acid catalyst compositions comprise a zirconium hydroxide support, a Group VIII metal, and a heteropolyacid selected from the group consisting of the exchanged aluminum salt of 12-tungstophosphoric acid, the exchanged salt of 12-tungstosilicic acid, and mixtures thereof. The use of said catalysts in an isomerization process comprises contacting said catalysts with a feed comprising C.sub.n or C.sub.n + paraffins, wherein n=4.
Claims2
A catalytic isomerization process comprising contacting a feed comprising C.sub.4 or C.sub.4 + paraffins under isomerization conditions, with the catalyst comprising a zirconium hydroxide support, about 0.01 to about 10 wt % of a Group VIII metal, and about 0.01 to about 60 wt % of a heteropolyacid selected from the group consisting of the exchanged aluminum salt of 12-tungstophorphoric acid, the exchanged aluminum salt of 12-tungstosilic acid, and mixtures thereof.
Dependencies are inferred from the claim text.