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    • 1. 发明授权
    • Catalyst for decomposing nitrous oxide, process for producing the same and method for decomposing nitrous oxide
    • 用于分解一氧化二氮的催化剂,其制备方法和分解一氧化二氮的方法
    • US06846471B2
    • 2005-01-25
    • US09947540
    • 2001-09-07
    • Masatoshi HottaMasakazu OkaYoshio FuruseHitoshi AtobeShigehiro Chaen
    • Masatoshi HottaMasakazu OkaYoshio FuruseHitoshi AtobeShigehiro Chaen
    • A61M16/01B01D53/86B01D53/94B01J23/00B01J23/46B01J23/58B01J23/60B01J23/62B01J23/63B01J23/656B01J23/89B01J8/00B01J23/32B01J23/40B01J23/42
    • B01J23/005B01D53/8628B01D2257/402B01J23/464B01J23/58B01J23/60B01J23/89Y02C20/10
    • The invention relates to a catalyst for decomposing nitrous oxide, which is [1] a catalyst comprising a support having supported thereon aluminum, magnesium and rhodium, [2] a catalyst comprising an alumina support having supported thereon magnesium and rhodium, [3] a catalyst comprising a support having supported thereon rhodium, the support comprising a spinel crystalline composite oxide formed by magnesium and at least a part of aluminum, [4] a catalyst comprising a support having supported thereon aluminum, rhodium and at least one metal selected from zinc, iron, manganese and nickel, [5] a catalyst comprising an alumina support having supported thereon rhodium and at least one metal selected from zinc, iron, manganese and nickel, or [6] a catalyst comprising a support having supported thereon rhodium, the support comprising a spinel crystalline composite oxide formed by at least a part of aluminum and the at least one metal selected from zinc, iron, manganese and nickel. The catalyst is not easily deteriorated in the activity due to moisture, favored with low-temperature decomposition activity and capable of reducing the amount of NOx generated to the allowable concentration or less. The invention also relates to a process for producing the catalyst and to a method for decomposing nitrous oxide.
    • 本发明涉及一种用于分解一氧化二氮的催化剂,其是[1]一种催化剂,其包含负载有铝,镁和铑的载体,[2]一种催化剂,其包含负载有镁和铑的氧化铝载体,[3] a 催化剂包括其上负载有铑的载体,所述载体包含由镁和至少一部分铝形成的尖晶石结晶复合氧化物,[4]催化剂,其包含负载有铝,铑和至少一种选自锌的金属的催化剂 ,铁,锰和镍,[5]催化剂,其包含负载有铑的氧化铝载体和选自锌,铁,锰和镍的至少一种金属的催化剂,或[6]一种催化剂,其包含其上负载有铑的载体, 载体,其包含由至少一部分铝和选自锌,铁,锰和镍中的至少一种金属形成的尖晶石结晶复合氧化物。 催化剂不易由于水分而导致的活性降低,有利于低温分解活性,并且能够将生成的NOx的量减少至允许浓度或更低。 本发明还涉及一种生产该催化剂的方法和一种分解一氧化二氮的方法。