Use of complex metal oxides in the autothermal generation of...

C - Chemistry – Metallurgy – 01 – B

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C01B 3/36 (2006.01) C01B 3/02 (2006.01) C01B 3/38 (2006.01)

Patent

CA 2550701

A process for producing hydrogen comprising reacting at least one hydrocarbon and steam in the presence of a complex metal oxide and a steam- hydrocarbon reforming catalyst in a production step under reaction conditions sufficient to form hydrogen and a spent complex metal oxide, wherein the complex metal oxide is represented by the formula (see above formula) wherein A; represents at least one element selected from the group consisting of Sr, Ba, a Group 1 element, and an element of the Lanthanide series according to the IUPAC Periodic Table of the Elements; B' represents at least one element selected from the group consisting of Cu, Ni, Cr, and V; 0<=x1<=1, 0<=x2<=1, 0<=x3<=1 wherein x1 + x2 + x3 = x; 0<=Y1<=1, 0<=y2<=1, 0<=y3<=1 wherein Y1 + Y2 + Y3 = Y; 1<=x<=10; and 1<=y<=10; and n represents a value such that the complex metal oxide is rendered electrically neutral.

Un procédé de production d'hydrogène comprenant la réaction d'au moins un hydrocarbure et de vapeur en présence d'un oxyde métallique complexe et d'un catalyseur de reformage d'hydrocarbure à la vapeur lors d'une étape de production dans des conditions réactionnelles suffisantes pour produire de l'hydrogène et un oxyde métallique complexe usé, dans lequel l'oxyde métallique complexe est représenté par la formule (voir la formule susmentionnée) dans laquelle A représente au moins un élément choisi dans le groupe constitué du Sr, du Ba, d'un élément du groupe 1 et d'un élément de la série des lanthanides du Tableau périodique des éléments de l'UICPA; B' représente au moins un élément choisi dans le groupe constitué du Cu, du Ni, du Cr et du V; 0.l toreq.x1<=1, 0<=x2<=1, 0<=x3<=1 avec x1 + x2 + x3 = x; 0<=Y1<=1, 0<=y2<=1, 0<=y3<=1 avec Y1 + Y2 + Y3 = Y; 1<=x<=10; et 1<=y<=10; et n représente une valeur telle que l'oxyde métallique complexe est rendu électriquement neutre.

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