US 6,635,168 B2 · Gasoline sulfur reduction catalyst for fluid catalytic cracking process

Abstract

The present invention is directed to certain catalyst compositions and processes that are capable of reducing sulfur compounds normally found as part of the gasoline fraction streams of fluid catalytic cracking processes. The present invention requires an equilibrium cracking catalyst composition comprises at least one Y-type zeolite having kinetic conversion activity of at least about 3 in combination with a Lewis acid containing alumina composite present in at least 50 weight percent of the composition. The resultant equilibrium catalyst composition has a kinetic conversion activity of at least about 2.

Claims29

Dependent claims

An equilibrium cracking catalyst composition capable of being maintained within a fluid cracking catalyst unit used in cracking hydrocarbon feedstock containing organic sulfur containing compounds, comprising

a) Y-type zeolite having kinetic conversion activity of at least about 3, said Y-type zeolite contained within an inorganic oxide matrix;
b) Lewis acid containing alumina composite, said composite being in greater than about 50 weight percent of the composition, said composition having a kinetic conversion activity of at least about 2.

Dependencies are inferred from the claim text.

Facts

Application

09/833,601Filed 13 Apr 2001

Published

US 2002/0179492 A15 Dec 2002

Granted

21 Oct 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

C10G 11/05
Oxides: crystalline alumino-silicates, e.g. molecular sieves
B01J 23/06
Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00: of zinc, cadmium or mercury
B01J 29/084
Of the faujasite type, e.g. type X or Y: y-type faujasite
B01J 35/19
Catalysts, in general, characterised by their form or physical properties: catalysts containing parts with different compositions

Gasoline sulfur reduction catalyst for fluid catalytic cracking process

Life of this patent

Gasoline sulfur reduction catalyst for fluid catalytic cracking process

Life of this patent

Abstract

Claims29