Chemistry of inorganic compounds – Hydrogen or compound thereof – Elemental hydrogen
Reexamination Certificate
2006-04-11
2006-04-11
Cooke, Colleen P. (Department: 1754)
Chemistry of inorganic compounds
Hydrogen or compound thereof
Elemental hydrogen
C502S346000
Reexamination Certificate
active
07025947
ABSTRACT:
The present invention provides a method of producing a CuZnAlZr oxide catalyst consisting of reacting an aqueous NaOH solution and aqueous Na2CO3solution with a mixture of aqueous solutions of each nitrate of Cu, Zn, Al, and Zr, producing a precipitate by coprecipitation, aging, filtering, washing and drying this precipitate to prepare a catalyst precursor consisting of a CuZnAlZr layered double hydroxide, and then obtaining a CuZnAlZr oxide by calcining this precursor in an air ambient atmosphere, a CuZnAlZr oxide catalyst, a CuZnZrCe oxide catalyst, a CoCuZnAl oxide catalyst for producing hydrogen by oxidative steam reforming a methanol, and methods of producing hydrogen gas consisting of converting methanol to hydrogen gas by oxidative steam reforming in the presence of air and steam using these oxide catalysts.
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Alakananda Bhattacharyya, (WO9903779 A1, Jan. 28, 1999), “Preparation and Calcination of Hydrotalcite-Type Compounds as Steam Reforming Catalysts for Oxygen-Containing Feedstocks,” Americal Chemical Socitey (Abstract Only).
Osaki Toshihiko
Subramani Velu
Suzuki Kenzi
Cooke Colleen P.
Japan as represented by the Seccretary of Agency of Industrial S
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