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    • 53. 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 The treatment may be carried out in a single reactor, or by carrying out up to all steps after catalyst may be withdrawn from a reactor and returned to at least one reactor, both preferably during operation thereof.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。
    • 55. 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。
    • 58. 发明授权
    • Dispersed metal sulfide catalysts for hydroprocessing (LAW105)
    • 用于加氢处理的分散金属硫化物催化剂(LAW105)
    • US5648577A
    • 1997-07-15
    • US460410
    • 1995-06-02
    • Teh Chung HoStuart Leon SoledSabato MiseoGary Brice McVickerMichel DaageViktor Buchholz
    • Teh Chung HoStuart Leon SoledSabato MiseoGary Brice McVickerMichel DaageViktor Buchholz
    • B01J31/22B01J23/887B01J23/889B01J27/051B01J37/08B01J37/20C07B35/02C10G45/46C10G45/50C07C5/10
    • B01J37/086B01J23/887B01J23/8878B01J23/8892B01J27/051B01J37/20C10G45/46C10G45/50
    • The present invention is directed toward a catalyst composition prepared by a process comprising: (a) impregnating an oxide precursor selected from the group consisting of rare earth oxide precursors, yttria precursors and mixtures thereof, onto an inorganic refractory oxide support; (b) drying said support at a temperature of about 100.degree. to about 120.degree. C. followed by calcining said support at a temperature of about 400.degree. to about 600.degree. C.; and (c) compositing or depositing on said support of step (b), a catalyst precursor salt represented by (ML)(Mo.sub.y W.sub.1-y O.sub.4).sub.a wherein M comprises Cr and/or one or more divalent promoter metals selected from the group consisting of Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof, wherein y is any value ranging from 0 to 1, and wherein L is one or more neutral, nitrogen-containing ligands at least one of which is a chelating polydentate ligand; a=1 when chromium is not one of the promoter metals and 0.5.ltoreq.a.ltoreq.3 when Cr is one of the promoter metals. (d) sulfiding said deposited or composited support of step (c) with an excess amount of sulfur in the form of one or more sulfur bearing compounds and at a temperature of at least about 250.degree. C. to form catalysts. In a preferred embodiment, the the composited or deposited supports of step (c) may be decomposed in a nonoxidizing atmosphere at a temperature of at least about 250.degree. C. prior to said sulfiding step (d). In a second aspect of the invention there is provided an improved aromatics hydrogenation process.
    • 本发明涉及通过包括以下步骤的方法制备的催化剂组合物:(a)将选自稀土氧化物前体,氧化钇前体及其混合物的氧化物前体浸渍到无机难熔氧化物载体上; (b)在约100至约120℃的温度下干燥所述载体,然后在约400至约600℃的温度下煅烧所述载体; 和(c)在步骤(b)的所述载体上合成或沉积由(ML)(MoyW1-yO4)a表示的催化剂前体盐,其中M包含Cr和/或一种或多种选自以下的二价助催化剂金属: Mn,Fe,Co,Ni,Cu,Zn及其混合物,其中y是0至1的任何值,并且其中L是一种或多种中性含氮配体,其中至少一种是螯合多齿配体; 当Cr不是助催化剂金属之一时,a = 1,当Cr是助催化剂金属之一时,a = 1。 (d)将步骤(c)的沉积或复合载体用一种或多种含硫化合物形式的过量的硫硫化并在至少约250℃的温度下硫化以形成催化剂。 在优选的实施方案中,在所述硫化步骤(d)之前,步骤(c)的复合或沉积的载体可以在非氧化气氛中在至少约250℃的温度下分解。 在本发明的第二方面,提供了一种改进的芳族化合物氢化方法。