Patent ID: 9029288
Filing Date: 2015-05-12
Classification: B01D,B01J,Y02T

Abstract:
1. A method for manufacturing a catalyst in which noble metals are carried in pores of porous alumina comprising: preparing a first aqueous solution comprising zirconium; filling pores of a porous alumina with the first aqueous solution by a pore-filling method using a capillary phenomenon in the pores of the porous alumina; drying and baking the porous alumina to form a zirconia layer in the pores of the porous alumina 900° C to 1200° C; preparing a second aqueous solution comprising noble metals; filling the pores of the porous alumina with the second aqueous solution by a pore-filling method using a capillary phenomenon in the pores of the porous alumina; and drying and baking the porous alumina filled with the second aqueous solution to carry the noble metals in the pores of the porous alumina.