Patent ID: 6291719
Filing Date: 2001-09-18
Classification: B01D,B01J

Abstract:
A method of catalyzing etherification, esterification, hydration, ether cleavage, isomerization, alkylation, or other reactions which are catalyzable with an acid or molecular sieve catalyst comprising conducting said reaction using a dual functional catalyst prepared with active components and a small amount of binder, wherein said dual functional catalyst comprising cylindrical pellets which are moulded such that a cross-section of each pellet has a window-lattice shape with external teeth or a star shape with inner spokes, wherein in said window-lattice shape, the distance (b) between two opposite sides in each cell is within the range of 2-8 mm, the thickness of the rib (a) is within the range of 1-6 mm, and wherein in said star shape with inner spokes, the number of spokes is 2-20, the thickness of the rib (a) is within the range of 1-6 mm, and wherein the catalyst is simultaneously and efficiently capable of performing catalysis and fractionation functions when it is directly and randomly loaded into a reaction section of catalytic distillation equipment.