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    • 2. 发明公开
    • 수소 가스 중의 일산화탄소 제거용 촉매
    • 用于从氢气中除去一氧化碳的催化剂
    • KR1020080061308A
    • 2008-07-02
    • KR1020070137686
    • 2007-12-26
    • 엔.이. 켐캣 가부시키가이샤
    • 요시무라,마사또시엔도우,마사시
    • B01J23/652B01J23/42B01J37/16B01J21/06
    • A catalyst having a high level of activity and a small quantity of a precious metal supported thereon is provided to reduce efficiently the concentration of CO in hydrogen gas through a water gas shift reaction. A catalyst for removing carbon monoxide from hydrogen gas is prepared by performing a hydrogen reduction treatment of a base catalyst prepared by supporting platinum and molybdenum onto a support comprising a metal oxide. The hydrogen reduction treatment is performed at a temperature of 300 to 700 deg.C. The support comprising the metal oxide is zirconia, a mixture of zirconia and at least one oxide of rare earth elements, or a composite oxide. The molybdenum supported on the support in the base catalyst is present in the form of a metal or an inorganic compound. A method for the preparation of a catalyst for removing carbon monoxide from hydrogen gas comprises the steps of: supporting platinum onto a support comprising a metal oxide; subsequently supporting molybdenum onto the support to form a base catalyst; and subjecting the base catalyst to a hydrogen reduction treatment at a temperature between 300 deg.C and 700 deg.C.
    • 提供具有高水平活性和少量负载的贵金属的催化剂,以通过水煤气变换反应有效地降低氢气中CO的浓度。 通过对通过将铂和钼负载在包含金属氧化物的载体上制备的碱催化剂的氢还原处理来制备用于从氢气中除去一氧化碳的催化剂。 氢还原处理在300〜700℃的温度下进行。 包含金属氧化物的载体是氧化锆,氧化锆和至少一种稀土元素氧化物的混合物,或复合氧化物。 负载在基础催化剂载体上的钼以金属或无机化合物的形式存在。 制备用于从氢气中除去一氧化碳的催化剂的方法包括以下步骤:将铂负载到包含金属氧化物的载体上; 随后将钼支撑在载体上以形成碱催化剂; 并在300摄氏度至700摄氏度的温度下对碱催化剂进行氢还原处理。