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    • 4. 发明授权
    • Dispersed metal sulfide catalysts for hydroprocessing
    • 用于加氢处理的分散金属硫化物催化剂
    • US5728644A
    • 1998-03-17
    • US524228
    • 1995-09-05
    • Teh Chung HoStuart Leon SoledSabato MiseoGary Brice Mc VickerMichel DaageViktor Buchholz
    • Teh Chung HoStuart Leon SoledSabato MiseoGary Brice Mc VickerMichel DaageViktor Buchholz
    • B01J31/22B01J23/887B01J23/889B01J27/051B01J37/08B01J37/20C07B35/02C10G45/46C10G45/50B01J27/047B01J23/63B01J31/00
    • B01J37/086B01J23/887B01J23/8878B01J23/8892B01J27/051B01J37/20C10G45/46C10G45/50
    • The present invention is directed toward a catalyst composition comprising a catalyst 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 supports 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 process will further comprise decomposing the composited or deposited supports of step (c) 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.
    • 本发明涉及一种催化剂组合物,其包含通过以下方法制备的催化剂,所述催化剂包括:(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耐火氧化物载体上; (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)用一种或多种带硫化合物形式的过量硫磺和至少约250℃的温度硫化所述步骤(c)的沉积或复合载体以形成催化剂。 在优选的实施方案中,该方法还包括在所述硫化步骤(d)之前,在至少约250℃的温度下,在非氧化气氛中分解步骤(c)的复合或沉积的载体。 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。