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    • 5. 发明授权
    • Process for producing a catalyst for denitration by catalytic reduction
using ammonia
    • 使用氨催化还原制备脱硝催化剂的方法
    • US5087600A
    • 1992-02-11
    • US589452
    • 1990-09-27
    • Yasuyoshi KatoKunihiko KonishiHiroshi AkamaToshiaki MatsudaNobue Teshima
    • Yasuyoshi KatoKunihiko KonishiHiroshi AkamaToshiaki MatsudaNobue Teshima
    • B01D53/86B01J23/24
    • B01J23/24B01D53/8628
    • A catalyst for denitration by catalytic reduction using ammonia capable of preventing catalyst deterioation due to vapors of heavy metal compounds contained in exhaust gases and having a high strength and a superior resistance to poisons and a process for producing the catalyst are provided, which catalyst comprises TiO.sub.2, oxide(s) of at least one of V, Cu, Fe and Mn and oxide(s) of at least one of Mo, W and Sn, the total of the mol number(s) of the oxide(s) of at least one of Mo, W and Sn falling within a range of 2.times.10.sup.-6 to 20.times.10.sup.-6 mol/m.sup.2 per the unit specific surface of the catalyst, and which process comprises having oxide(s) of at least one of Mo, W and Sn adsorbed and supported onto a composition comprising TiO.sub.2 prepared in advance and oxide(s) of at least one of V, Fe, Cu and Mn so as to give the above-specified total of the mol number(s) of oxide(s) of at least one of Mo, W and Sn.
    • 提供了一种使用氨进行催化还原的催化还原催化剂,其能够防止由于废气中含有的重金属化合物的蒸气而导致的催化剂降解,并且具有高强度和优异的抗毒性和催化剂的制备方法,该催化剂包含TiO 2 ,V,Cu,Fe和Mn中的至少一种的氧化物以及Mo,W和Sn中的至少一种的氧化物,以及氧化物的摩尔数(s)为 Mo,W和Sn中的至少一种相对于催化剂的单位比表面积为2×10 -6至20×10 -6 mol / m 2的范围,并且该方法包括具有至少一种Mo,W和 Sn吸附并负载在预先制备的TiO 2和V,Fe,Cu和Mn中的至少一种的氧化物的组合物上,以得到上述规定的氧化物摩尔数的总数, 的Mo,W和Sn中的至少一种。