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Supported catalyst for removing nitrogen oxides, method of preparing the same, and removing method of nitrogen oxides using the same
Supported catalyst for removing nitrogen oxides, method of preparing the same, and removing method of nitrogen oxides using the same
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机译:用于去除氮氧化物的负载型催化剂,其制备方法以及使用该催化剂的氮氧化物的去除方法
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摘要
A supported catalyst for reduction reaction of nitrogen oxides includes a support and an silver (Ag)-based compound and aluminum fluoride which are immobilized in the support. A method for preparing the supported catalyst for reduction reaction of nitrogen oxides includes an impregnation step wherein aluminum fluoride, a hydrate or a salt thereof, and a silver (Ag)-based compound or a hydrate thereof are reacted with a support and a step of calcining the support. Nitrogen oxides in exhaust gas are removed by reacting with a reducing agent, in the presence of the supported catalyst for reduction reaction of nitrogen oxides. Wherein, the supported catalyst has an excellent nitrogen oxide removal efficiency at a practical exhaustion temperature of 270 to 400°C.
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