질소산화물의 암모니아 전환용 촉매 및 이의 제조방법
    1.
    发明公开
    질소산화물의 암모니아 전환용 촉매 및 이의 제조방법 有权
    氮氧化物转化为氨的催化剂及其制备方法

    公开(公告)号:KR1020130125481A

    公开(公告)日:2013-11-19

    申请号:KR1020120049020

    申请日:2012-05-09

    Abstract: The object of the present invention is to provide a catalyst for converting nitrogen oxides into ammonia and a manufacturing method thereof, wherein the catalyst is capable of converting nitrogen oxides into ammonia under the condition of diluted exhaust gas with stoichiometric air-fuel ratio (A/F=14.7). To achieve the object, the catalyst for converting nitrogen oxides into ammonia according to the present invention includes a metal support with precious metal and is capable of converting nitrogen oxides into ammonia under the condition of diluted exhaust gas with stoichiometric air-fuel ratio (A/F=14.7). [Reference numerals] (AA) NH_3 generation amount (ppm);(BB) Temperature ()

    Abstract translation: 本发明的目的是提供一种用于将氮氧化物转化为氨的催化剂及其制造方法,其中该催化剂能够在化学计量空燃比稀释的废气条件下将氮氧化物转化为氨(A / F = 14.7)。 为了达到上述目的,根据本发明的用于将氮氧化物转化为氨的催化剂包括具有贵金属的金属载体,并且能够在化学计量空燃比的稀释废气条件下将氮氧化物转化为氨(A / F = 14.7)。 (AA)NH_3产生量(ppm);(BB)温度(℃)

    수동적 암모니아/SCR용 암모니아 생성 삼원 촉매의 제조 방법 및 이에 의해 제조된 삼원 촉매
    4.
    发明公开
    수동적 암모니아/SCR용 암모니아 생성 삼원 촉매의 제조 방법 및 이에 의해 제조된 삼원 촉매 有权
    无源氨氮SCR技术生产氨基甲酸的制造方法及其应用

    公开(公告)号:KR1020130060028A

    公开(公告)日:2013-06-07

    申请号:KR1020110126307

    申请日:2011-11-29

    CPC classification number: B01J23/464 B01J21/00 B01J23/10 B01J37/08

    Abstract: PURPOSE: A manufacturing method of three-way catalyst producing ammonia for passive ammonia/selective catalytic reduction and a tree-way catalyst manufactured by the same are provided to be effectively used for environmentally-friendly automobiles. CONSTITUTION: A catalyst for reducing nitrogen oxide into ammonia is carried in a metal oxide carrier. A manufacturing method of the catalyst includes a step for thermally treating noble metal powder carried in the metal oxide carrier in the process of manufacturing a three-way catalyst based on an impregnation method. The noble metal is rhodium(Rh). The metal oxide support is Al2O3, SiO2, ZrO2, CeO2, C3Z1(Ce0.75Zr0.25O2), or the mixture. The noble metal carried in the carrier is thermally treated at 800-1,200 deg. C. The weight ratio of the noble metal impregnated in the metal oxide carrier is 0.01-1 weight%. [Reference numerals] (AA) NH3 productivity(ppm)

    Abstract translation: 目的:提供用于产生用于被动氨/选择性催化还原的氨的三元催化剂的制造方法和由其制造的树脂催化剂,以有效地用于环境友好的汽车。 构成:用于将氮氧化物还原成氨的催化剂在金属氧化物载体中进行。 催化剂的制造方法包括在基于浸渍法的三元催化剂的制造工序中对金属氧化物载体中载持的贵金属粉末进行热处理的工序。 贵金属是铑(Rh)。 金属氧化物载体为Al2O3,SiO2,ZrO2,CeO2,C3Z1(Ce0.75Zr0.25O2)或混合物。 承载在载体上的贵金属在800-1200度热处理。 浸渍在金属氧化物载体中的贵金属的重量比为0.01-1重量%。 (标号)(AA)NH 3生产率(ppm)

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