Nancy H Flint

US Patent:

46364838, Jan 13, 1987

Filed:

Dec 9, 1985

Appl. No.:

6/806984

Inventors:

Solveg S. Kjell - Euless TX
Tai-Hsiang Chao - Mount Prospect IL
Nancy J. Flint - Wonder Lake IL
Arthur A. Foutsitzis - Des Plaines IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

B01J 2906

US Classification:

502 61

Abstract:

Superior tolerance to catalyst coking is obtained with a catalytic composite comprising a gallium component and a crystalline aluminosilicate incorporated with a phorphorus containing alumina. A five-fold reduction in the coke content of the spent catalyst of the instant invention is observed which is directly attributable to the phosphorus containing alumina. A novel method of preparing this catalyst is presented, along with a novel process for the dehydrocyclodimerization of C. sub. 2 -C. sub. 5 aliphatic hydrocarbons.