Partially decomposed catalyst and hydrocarbon oxidation processes using the same
    7.
    发明授权
    Partially decomposed catalyst and hydrocarbon oxidation processes using the same 有权
    部分分解的催化剂和烃氧化方法使用它们

    公开(公告)号:US07718564B2

    公开(公告)日:2010-05-18

    申请号:US11434717

    申请日:2006-05-16

    摘要: The present invention is related to a hydrocarbon oxidation process. The process comprises bringing one or more hydrocarbons into contact with a source of oxygen in the presence of a radical initiator and a catalyst. The catalyst comprises an organic metal complex located on a catalyst support, and is obtained by partial decomposition of the organic metal complex. For example, the process can be used to produce dimethyl carbonate from dimethoxy methane. The invention is also related to a partially decomposed catalyst that comprises a silica support and an organic metal complex, wherein at least 5% of the organic compound remains in the catalyst. The organic metal complex comprises an organic compound and a metal-based compound wherein the metal is selected from copper, nickel, and combinations thereof. The invention is also related to a process for manufacturing of a catalyst comprising mixing L-arginine, a Cu-based compound, water, and optionally another metal-based compound to form a solution; impregnating the solution onto a silica support to form a catalyst precursor; and partially decomposing the L-arginine to form the catalyst so that at least 5% of L-arginine remains in the catalyst.

    摘要翻译: 本发明涉及烃氧化方法。 该方法包括在自由基引发剂和催化剂的存在下使一种或多种烃与氧源接触。 催化剂包含位于催化剂载体上的有机金属络合物,并通过有机金属络合物的部分分解获得。 例如,该方法可用于从二甲氧基甲烷生产碳酸二甲酯。 本发明还涉及包含二氧化硅载体和有机金属络合物的部分分解的催化剂,其中至少5%的有机化合物保留在催化剂中。 有机金属络合物包括有机化合物和金属基化合物,其中金属选自铜,镍及其组合。 本发明还涉及制造催化剂的方法,其包括将L-精氨酸,Cu基化合物,水和任选的其它金属类化合物混合以形成溶液; 将溶液浸渍到二氧化硅载体上以形成催化剂前体; 并部分分解L-精氨酸以形成催化剂,使得至少5%的L-精氨酸保留在催化剂中。

    Dispersed metal sulfide catalysts for hydroprocessing
    10.
    发明授权
    Dispersed metal sulfide catalysts for hydroprocessing 失效
    用于加氢处理的分散金属硫化物催化剂

    公开(公告)号:US5728644A

    公开(公告)日:1998-03-17

    申请号:US524228

    申请日:1995-09-05

    摘要: 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.

    摘要翻译: 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。