Selective hydrogenation process and catalyst
AssigneeCatalytic Distillation Technologies
InventorJ. Yong Ryu
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Abstract
A supported catalyst for selective hydrogenation of acetylenes comprising 3-15 wt. % Ni promoted with 0.005-0.2 Pd on a support. The catalyst is prepared by depositing nickel promoted with palladium on a support, containing one or more optional elements from copper, silver, Group IA (Li, Na, K, Rb, Cs, Fr) and Group IIA (Be, Mg, Ca, Sr, Ba, Ra) and B (Zn, Cd,) of the periodic table of elements and characterized as: Component Range of component Preferably wt. % wt. % Ni 3-15 4-11 Cu 0-I 0.0-0.6 Pd 0.005-0.2 0.01-0.1 Ag 0-10 0-5 Group IA 0-2.5 0-1.5 Group IIA & B 0-25 0.1-5.
Claims20
A process of selectively hydrogenating acetylenic compounds comprising contacting said acetylenic compounds with a hydrogenation catalyst comprising Ni with a promoting amount of Pd deposited on an aluminum oxide support, which contains mixed oxides of MAl2O4 with spinel structures, where M is selected from the group consisting of Co, Ni, Ca, and Zn, in the presence of hydrogen under conditions of temperature and pressure to at least partially hydrogenate said acetylenic compounds to the corresponding compounds having less unsaturation than said acetylenic compounds.
Dependencies are inferred from the claim text.