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    • 29. 发明授权
    • Supported catalyst regeneration
    • 负载催化剂再生
    • US06753286B2
    • 2004-06-22
    • US10059917
    • 2002-01-29
    • Janet Renee ClarkRussell John KovealMichel Daage
    • Janet Renee ClarkRussell John KovealMichel Daage
    • B01J3862
    • C10G2/33B01J23/94B01J23/96B01J38/10B01J38/58B01J38/62B01J38/70B01J2038/005C10G2/332C10G2/333
    • There is provided a process for renewing the activity of used, supported metal catalysts for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons comprising decreasing the hydrocarbon content of the catalyst, impregnating said catalyst under an non-oxidative atmosphere with a solution at least one weak organic acid, preferably a mono- or di-carboxylic acid, to the point where it has absorbed a volume of said solution equal to at least about 10% of its calculated pore volume, oxidizing the catalyst with a gaseous oxidant in the presence of the impregnating solution and activating the catalyst by reduction with hydrogen at elevated temperatures. Optionally, the catalyst is calcined after the oxidation step, and passivated after the activation step. A preferred means of decreasing the hydrocarbon content of the catalyst is contacting it with a hydrogen-containing gas at elevated temperatures.
    • 提供了一种用于更新用于一氧化碳氢化的用过的负载金属催化剂以形成烃的混合物的活性的方法,包括降低催化剂的烃含量,在非氧化性气氛下用至少一种溶液浸渍所述催化剂 一种弱有机酸,优选单羧酸或二羧酸,其吸收一定体积的所述溶液等于其计算的孔体积的至少约10%,在存在下用气态氧化剂氧化催化剂 的浸渍溶液,并通过在升高的温度下用氢还原来活化催化剂。 任选地,在氧化步骤之后煅烧催化剂,并在活化步骤后钝化。 降低催化剂的烃含量的优选方法是在升高的温度下将其与含氢气体接触。