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US 5,977,425 AGranted
Method for upgrading waxy feeds using a catalyst comprising mixed powdered dewaxing catalyst and powdered isomerization catalyst formed into a discrete particle
AssigneeExxon Research & Engineering Co.
InventorsDee A. Brandes, David N. Zinkie, Sandra Jane Alward, William J. Murphy, Ian A. Cody, Thomas J. Ford
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Abstract
It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalysts being formed into a discrete particle.
Claims12
A method for upgrading hydrocracked feeds to produce lubricating oils which comprises:
- (a) contacting the hydrocracked feed under upgrading conditions of elevated temperature and pressure in the presence of hydrogen with a catalyst comprising a unitized powder pellet catalyst made by:
- (1) mixing powdered 10 member ring unidirectional pore inorganic oxide molecular sieve dewaxing catalyst with a powdered amorphous isomerization catalyst having an acidity of about 0.3 to about 2.5 wherein said acidity is determined by the ability of the isomerization catalyst to convert 2-methylpent-2-ene to 3-methylpent-2-ene and 4-methylpent-2-ene and is expressed as the mole ratio of 3-methylpent-2-ene and 4-methylpent-2-ene,
- (2) mixing the powdered materials together to form a homogeneous mass,
- (3) compressing/extruding the mass, and
- (4) pelleting the extruded/compressed mass.
2 more elements
A method for upgrading wax-containing feeds to produce lubricating oils which comprises:
- (a) solvent dewaxing the wax-containing feed under solvent dewaxing conditions to obtain a solvent dewaxed oil;
- and
- (b) contacting the solvent dewaxed oil from step (a) under upgrading conditions of elevated temperature and pressure in the presence of hydrogen with a catalyst comprising a unitized powder pellet catalyst made by:
- (1) mixing powdered 10 member ring unidirectional pore inorganic oxide molecular sieve dewaxing catalyst with a powdered amorphous isomerization catalyst having an acidity of about 0.3 to about 2.5 wherein said acidity is determined by the ability of the isomerization catalyst to convert 2-methylpent-2-ene to 3-methylpent-2-ene and 4-methylpent-2-ene and is expressed as the mole ratio of 3-methylpent-2-ene and 4-methylpent-2-ene,
- (2) mixing the powdered materials together to form a homogeneous mass,
- (3) compressing/extruding the mass, and
- (4) pelleting the extruded/compressed mass.
4 more elements
Dependencies are inferred from the claim text.