Catalyst for the steam reforming of hydrocarbons
AssigneeSud-Chemie AG
InventorsGotz Burgfels, Karl Kochloefl
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Abstract
A catalyst for the steam reforming of hydrocarbons contains nickel on an alumina/calcium aluminate support which is doped with 0.2 to 10 percent by weight of titanium dioxide. The titanium dioxide has the effect that the calcium aluminate is at least partially in the form of a hibonite [CaO(Al.sub.2 O.sub.3).sub.6 ] phase in an .alpha.-Al.sub.2 O.sub.3 matrix as defined by x-ray diffractometry.
Claims14
A catalyst for the steam reforming of hydrocarbons which consists essentially of nickel on an alumina/calcium aluminate support, wherein the support contains about 0.8 to about 5 percent by weight, based on the weight of the support, of titanium dioxide, wherein the calcium aluminate is at least partially in the form of a hibonite [CaO(Al.sub.2 O.sub.3).sub.6 ] phase in an .alpha.-Al.sub.2 O.sub.3 matrix as defined by X-ray diffractometry.
A process for producing a catalyst for the steam reforming of hydrocarbons which consists essentially of preparing a support by mixing hydrated alumina, calcium aluminate and a colloidally dispersed titanium compound with water, molding the mixture, precalcining and calcining the molding, and coating the resulting support molding with nickel wherein titanium dioxide is present in the support molding in the amount of about 0.8 to about 5 percent by weight based on the weight of the support, and the calcium aluminate in the support molding is at least partially in the form of a hibonite [CaO(Al.sub.2 O.sub.3).sub.6 ] phase in an .alpha.-Al.sub.2 O.sub.3 matrix as defined by X-ray difractometry.
Dependencies are inferred from the claim text.