Catalyst composition and process for making the composition

Details Catalyst composition and process for making the composition Catalyst composition and process for making the composition

C - Chemistry, Metallurgy

07

C

C07C 5/03 (2006.01) B01J 23/00 (2006.01) B01J 23/50 (2006.01) B01J 23/58 (2006.01) C07C 5/08 (2006.01) C07C 7/163 (2006.01)

Patent

CA 2384753

A catalyst composition is provided which can be used for hydrogenating a highly unsaturated hydrocarbon such as an alkyne or a diolefin. The catalyst composition contains palladium, a catalyst component of either silver or an alkali metal compound, or both silver and an alkali metal compound, and a metal aluminate catalyst support. Such metal aluminate catalyst support is prepared by a process of incorporating alumina with a metal component, preferably impregnating alumina with a melted metal component, to thereby provide a metal-incorporated alumina followed by drying and high temperature calcining to thereby provide a metal aluminate catalyst support. The catalyst composition disclosed can be used for hydrogenating a highly unsaturated hydrocarbon to a less unsaturated hydrocarbon. The process involves contacting a highly unsaturated hydrocarbon with a catalyst composition in the presence of hydrogen under a hydrogenation condition sufficient to effect a hydrogenation of the highly unsaturated hydrocarbon.

L'invention concerne une composition de catalyseur que l'on peut utiliser pour hydrogéner un hydrocarbure fortement insaturé, par exemple un alcyne ou un dioléfine. La composition de catalyseur contient du palladium, un composant catalyseur soit d'argent soit d'un composé métallique alcalin, ou les deux, et un support de catalyseur d'aluminate de métal. Ledit support est préparé suivant un procédé qui consiste à incorporer de l'alumine avec un composant métallique, à imprégner, de préférence, l'alumine avec un composant de métal fondu, pour produire une alumine de métal, puis séchage et calcination à haute température pour produire un support de catalyseur d'aluminate de métal. La composition de catalyseur peut servir à hydrogéner un hydrocarbure fortement insaturé en hydrocarbure moins insaturé. Le procédé implique la mise en contact d'un hydrocarbure fortement insaturé avec une composition de catalyseur en présence d'hydrogène dans des conditions d'hydrogénation suffisantes pour hydrogéner ledit hydrocarbure fortement insaturé.

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