Catalyst for the selective hydrogenation of diolefinic hydrocarbons
AssigneeUop LLC
InventorsMark J. Gattuso, Daniel L. Ellig
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Abstract
A composition is presented for a catalyst useful in the selective hydrogenation of unconjugated diolefinic hydrocarbons to monoolefinic hydrocarbons. The catalyst comprises nickel and sulfur deposited on the surface of an alumina support. The preferred catalyst does not contain halogens, noble metals, alkaline earth metals, or alkali metals and is characterized by having only a very low percentage of the total pore volume being provided by pores having an average pore diameter less than 150 angstroms. The great majority of the pore volume is present in the form of macropores having diameters of 500 to 1500 angstroms.
Claims9
A catalyst for the selective hydrogenation of diolefinic hydrocarbons to monoolefinic hydrocarbons, which consists essentially of an alumina support material, about 0.05 to 1.5 wt. % sulfur, and about 1.0 to 25.0 wt. % nickel, where the alumina support material is characterized by having a total pore volume greater than 1.4 but less than 2.5 cc/g, a surface area greater than 150 m.sup.2 /g, with less than 25 percent of the total pore volume being provided by pores having pore diameters of less than 150 angstroms and with over 60 percent of the pore volume being provided by pores having pore diameters greater than 600 angstroms.
A catalyst for the selective hydrogenation of diolefinic hydrocarbons to monoolefinic hydrocarbons having from 8 to 20 carbon atoms per molecule, which consists essentially of an alumina support material, about 0.05 to 1.5 wt. % sulfur, and about 1.0 to 25.0 wt. % nickel, where the alumina support material is prepared by the gelation of an alumina sol and is characterized by having a total pore volume greater than 1.4 but less than 3.0 cc/g, a surface area greater than 150 m.sup.2 /g, with less than 25 percent of the total pore volume being provided by pores having pore diameters of less than 150 angstroms and with over 60 percent of the pore volume being provided by pores having pore diameters greater than 600 angstroms.
Dependencies are inferred from the claim text.