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UREA HYDROLYSIS CATALYST, SELECTIVE REDUCTION CATALYST CONTAINING UREA HYDROLYSIS MATERIAL, AND EXHAUST GAS CLEANING APPARATUS
UREA HYDROLYSIS CATALYST, SELECTIVE REDUCTION CATALYST CONTAINING UREA HYDROLYSIS MATERIAL, AND EXHAUST GAS CLEANING APPARATUS
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机译:尿素水解催化剂,包含尿素水解材料的选择性还原催化剂和排气净化装置
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摘要
An object of the present invention is to provide a urea hydrolysis catalyst and a selective reduction catalyst containing a urea hydrolysis material which have an excellent hydrolysis ability of urea-water solution to NH3 and can exhibit the ability at low temperatures upon removal of nitrogen oxide (NOx) from exhaust gas emitted from lean-burn engines such as boilers, gas turbines, lean-burn gasoline engines and diesel engines.;Provided is a urea hydrolysis catalyst including a monolithic carrier coated with a urea hydrolysis material as one or more catalytic layers, wherein the urea hydrolysis material includes a titania-containing inorganic oxide having an activation energy of urea hydrolysis reaction of 120 kJ/mol or less.
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