High porosity catalyst

Details High porosity catalyst High porosity catalyst

B - Operations, Transporting

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B01J 32/00 (2006.01) B01J 21/04 (2006.01) B01J 35/04 (2006.01) B01J 35/10 (2006.01) B01J 37/06 (2006.01)

Patent

CA 1189052

- 1 - Abstract: A method is described for producing a catalyst or catalyst support having both high surface area, e.g. greater than 150 m2/g, and large pore sizes, e.g. greater than 1.0 ml/g of macropores having diameters between 1 and 50 nm. According to the method, a metal oxide is mixed with water and an acid to form a dilute metal gel, preferably containing at least 70% by weight water and consisting of a loose three dimensional network of oxide containing the water evenly dispersed throughout. This gel is slowly dried at a temperature below the boil- ing point of water whereby a substantial proportion of the water is removed from the interior of the pore structure, leaving the three dimensional network intact. Thereafter, the dried product is calcined to form a novel catalyst or catalyst support having both high surface area and large pore sizes. The novel catalyst is useful as a component of a catalytic cracking catalyst or a hydrocracking catalyst.

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