Continuous method of hydrogenation

Details Continuous method of hydrogenation Continuous method of hydrogenation

C - Chemistry, Metallurgy

01

B

C01B 15/023 (2006.01) B01J 19/24 (2006.01) C07B 35/02 (2006.01)

Patent

CA 2426313

The invention relates to a continuous method for catalytic hydrogenation, whereby a reaction mixture, containing the substrate for hydrogenation, the hydrogenated product, hydrogen and the hydrogenation catalyst, suspended in the reaction mixture, is fed into a reactor (3) in a circuit, whereby a part of the hydrogenation product is removed (7) from the reactor and the substrate for hydrogenation and hydrogen (6a) are added to the reaction. The substrate for hydrogenation and the hydrogen (1) are mixed before admission to the reactor. A venturi nozzle is particularly suitable for application as a mixing device. The invention particularly finds application in the method or production of hydrogen peroxide by the anthraquinone method.

La présente invention concerne un procédé continu d'hydrogénation catalytique, selon lequel un mélange réactionnel, contenant la substance à hydrogéner, le produit d'hydrogénation, de l'hydrogène et le catalyseur d'hydrogénation en suspension dans ledit mélange réactionnel, est acheminé en circuit dans un réacteur (3), une partie du produit d'hydrogénation est extraite du réacteur (7) et la substance à hydrogéner et l'hydrogène (6a) sont mis en réaction. La substance à hydrogéner et l'hydrogène (1) sont mélangés avant d'être introduits dans le réacteur. Comme organe de mélange, on peut utiliser notamment un tube venturi. Cette invention s'applique en particulier à un procédé pour produire du peroxyde d'hydrogène selon le procédé à l'anthraquinone.

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