Ammonium metatungstate (AMT) can be used as an active component to prepare a high specific surface area porous honeycomb ceramic catalyst, so that the catalyst can better adapt to application conditions such as frequent temperature changes, high nitrogen oxide concentration, high thermal stability, and high surface area.
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A Preparation Method of Porous Honeycomb Ceramic Catalyst
Using titanium dioxide, montmorillonite and alpha alumina as the carrier, ammonium metatungstate, ammonium metavanadate, cerium nitrate and palladium acetate as active components, accompanied by auxiliary materials, porous honeycomb ceramic catalyst with high specific surface area can be obtained after mixing, aging, kneading, molding, drying and calcining. Wherein, the auxiliary materials include water, ammonia water, lactic acid, citric acid, stearic acid, glass fiber, monoethanolamine, polymer fiber, hydroxypropyl methyl cellulose, and polyethylene oxide.
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