B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 27/055 (2006.01) C07C 67/055 (2006.01) B01J 21/06 (2006.01) B01J 37/08 (2006.01)
Patent
CA 2636558
The present invention generally relates to catalyst systems and methods for oxidation of carbon monoxide. The invention involves catalyst compositions which may be advantageously altered by, for example, modification of the catalyst surface to enhance catalyst performance. In particular, the catalyst composition comprises nickel and is modified with gold atoms such that gold atoms randomly replace nickel atoms. Catalyst systems of the present invention may be capable of performing the oxidation of carbon monoxide at relatively lower temperatures (e.g., 200 K and below) and at relatively higher reaction rates than known catalysts. Additionally, catalyst systems disclosed herein may be substantially lower in cost than current commercial catalysts. Such catalyst systems may be useful in, for example, catalyctic converters, fuel cells, sensors, and the like.
L'invention concerne un nouveau procédé de préparation de catalyseurs palladium-or supportés. Le procédé comprend la sulfatation d'un support à base de dioxyde de titane, la calcination du support sulfaté, l'imprégnation du support calciné avec un sel de palladium, un sel d'or et un métal alcalin ou un composé d'ammonium, la calcination du support imprégné et la réduction du support calciné. Les catalyseurs palladium-or supportés résultants présentent une activité accrue et une meilleure stabilité à l'acétoxylation.
Lyondell Chemical Technology L.p.
Osler Hoskin & Harcourt Llp
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