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    • 47. 发明授权
    • Catalyst regeneration
    • 催化剂再生
    • US06800579B2
    • 2004-10-05
    • US10059926
    • 2002-01-29
    • Michel DaageRussell John KovealMin Chang
    • Michel DaageRussell John KovealMin Chang
    • B01J3812
    • B01J23/96B01J23/75B01J23/94B01J38/10B01J38/12B01J38/56B01J38/68B01J2038/005C07C1/045C07C2523/75C10G2/331C10G2/332C10G2/333Y02P20/584C07C9/04
    • There is provided a process for regenerating the activity of used metal catalysts for the hydrogenation of carbon monoxide comprising decreasing the hydrocarbon content thereof, calcining under an oxidant-containing atmosphere, impregnating with a solution of at least one of a metal compound, calcining under an oxidant-containing atmosphere and activating by contacting with a hydrogen-contacting gas at elevated temperatures to form an active catalyst. The process regenerates and enhances both supported and dispersed active metal (DAM) catalysts. Used catalysts enhanced by the process are initially treated to decrease their hydrocarbon content. The treatment may be carried out in a single reactor, or by carrying out up to all steps after catalyst may be withdrawn from a reactor and returned to at least one reactor, both preferably during operation thereof. Up to all steps may be effected in a subsequent reactor, or in specialized apparatus.
    • 提供了一种用于再生用于一氧化碳氢化的所用金属催化剂的活性的方法,包括降低其含烃量,在含氧化剂的气氛下煅烧,用至少一种金属化合物的溶液浸渍,在 氧化剂的气氛,并通过在高温下与接触氢的气体接触而形成活性催化剂。 该方法再生并增强了负载和分散的活性金属(DAM)催化剂。 首先处理通过该方法增强的使用的催化剂以降低它们的烃含量。 处理可以在单个反应器中进行,或者在催化剂可以从反应器中取出并返回到至少一个反应器之后,最好在其操作期间进行到所有步骤。 直到所有步骤都可以在随后的反应器中或在专门的装置中进行。
    • 49. 发明授权
    • Supported catalyst activation
    • 负载催化剂活化
    • US06753351B2
    • 2004-06-22
    • US10059918
    • 2002-01-29
    • Janet Renee ClarkMichel DaageRussell John Koveal
    • Janet Renee ClarkMichel DaageRussell John Koveal
    • C07C2700
    • C10G2/332B01J23/75B01J37/0203B01J37/14B01J37/18C10G2/333
    • A process for activating a supported metal catalyst or catalyst precursor useful for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons, comprising reducing with a hydrogen-containing gas at elevated temperature so that at least a portion is in the metallic state, impregnating under a non-oxidizing atmosphere with a solution of at least one member selected from the group consisting of ammonium salts, alkyl ammonium salts and weak organic acids, optionally further including ammonia, to the point where it has absorbed a volume of solution equal to at least about 10% of its calculated pore volume, oxidizing with a gaseous oxidant in the presence of the impregnating solution and reducing with hydrogen-containing gas at elevated temperatures to form an active catalyst. The steps beginning with the impregnation may be repeated. Optionally, the catalyst may be calcined after the oxidation step and/or passivated after activation.
    • 用于活化用于氢化一氧化碳以形成烃混合物的负载型金属催化剂或催化剂前体的方法,包括在高温下用含氢气体还原,使得至少一部分处于金属状态,浸渍在 非氧化性气氛,其中选自铵盐,烷基铵盐和弱有机酸中的至少一种的溶液,任选地还包括氨,其吸收一定体积的溶液至少等于至少 其计算的孔体积的约10%,在浸渍溶液存在下用气态氧化剂氧化,并在高温下用含氢气体还原形成活性催化剂。 可以重复从浸渍开始的步骤。 任选地,催化剂可以在氧化步骤之后煅烧和/或在活化后被钝化。