UREA HYDROLYSIS CATALYST, SELECTIVE REDUCTION CATALYST CONTAINING UREA HYDROLYSIS MATERIAL, AND EXHAUST GAS CLEANING APPARATUS
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Aug 21, 2015
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Aug 25, 2014
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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. 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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