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N2O Manufacturing method of decomposition catalyst for N2O abatement by adding mixed metal oxides in alumina support
N2O Manufacturing method of decomposition catalyst for N2O abatement by adding mixed metal oxides in alumina support
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机译:N2O在氧化铝载体中添加混合金属氧化物的N2O减排分解催化剂的制备方法
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摘要
The present invention relates to a catalyst producing method capable of preventing the activity degradation of a catalyst caused by water, oxygen, and nitrogen oxides existing in exhaust gas in terms of a decomposition catalyst for removing nitrous oxide and, more specifically, to a catalyst producing method which is able to prevent activity degradation in a low temperature area and improve the poisoning resistance of a catalyst by impregnating noble metals after producing a catalyst carrier by adding a metal complex oxide comprising transition metal and rare earth metal to γ-Al_2O_3 used as a carrier in a conventional decomposition catalyst. The present invention: is able to provide a high conversion rate of nitrous oxide (N_2O) by effectively preventing the activity degradation of a catalyst generated by water, oxygen, and nitrogen oxide (NO) existing in exhaust gas; and improves the poisoning resistance of a catalyst while preventing the activity degradation of a noble metal catalyst in an area of a low temperature of 300 to 400°C.
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