中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

91 records (took 0.023 seconds)

    Supported catalyst regeneration
    38.
    发明授权
    Supported catalyst regeneration 有权
    负载催化剂再生

    公开(公告)号：US06753286B2

    公开(公告)日：2004-06-22

    申请号：US10059917

    申请日：2002-01-29

    Applicant: Janet Renee Clark ,  Russell John Koveal ,  Michel Daage

    Inventor： Janet Renee Clark ,  Russell John Koveal ,  Michel Daage

    IPC: B01J3862

    CPC classification number: C10G2/33 ,  B01J23/94 ,  B01J23/96 ,  B01J38/10 ,  B01J38/58 ,  B01J38/62 ,  B01J38/70 ,  B01J2038/005 ,  C10G2/332 ,  C10G2/333

    Abstract: 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.

    Abstract translation: 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。

    Aromatics hydrogenation with a new class of metal oxides
    39.
    发明授权
    Aromatics hydrogenation with a new class of metal oxides 失效
    芳烃氢化与一类新型的金属氧化物

    公开(公告)号：US5841013A

    公开(公告)日：1998-11-24

    申请号：US857605

    申请日：1997-05-16

    Applicant: Teh Chung Ho ,  Charles Ralph Symon ,  Viktor Buchholz ,  Michel Daage

    Inventor： Teh Chung Ho ,  Charles Ralph Symon ,  Viktor Buchholz ,  Michel Daage

    IPC: B01J23/28 ,  B01J23/30 ,  B01J23/88 ,  B01J37/08 ,  C07C5/10 ,  C10G45/50 ,  B01J31/00

    CPC classification number: B01J23/883 ,  B01J23/28 ,  B01J23/30 ,  B01J23/88 ,  B01J23/8898 ,  B01J37/086 ,  C07C5/10 ,  C10G45/50 ,  B01J23/8878 ,  C07C2531/22

    Abstract: The present invention is directed toward a hydrogenation process using a highly active aromatics hydrogenation catalyst. The catalyst is prepared by decomposing a catalyst precursor selected from the group consisting of metal amine molybdates, metal amine tungstates and mixtures thereof, wherein said metal amine catalyst precursor has the general formula ML (Mo.sub.y W.sub.1-y O.sub.4).sub.a where M is Cr and/or one or more divalent promoter metals selected from the group consisting of Mn, Fe, Co, Ni, Cu and Zn; L is one or more neutral nitrogen-containing ligands at least one of which is a chelating polydentate ligand; 0.ltoreq.y.ltoreq.1; and a=1 for non-chromium containing catalysts and wherein 0.5.ltoreq.a.ltoreq.3 for chromium containing catalysts, at a temperature of about 200.degree. C. to about 400.degree. C. in an inert atmosphere; then reducing at a temperature of about 300.degree. C. to about 450.degree. C. said metal amine catalyst precursor to form a mixed metal oxide catalyst of the formula ML(Mo.sub.y W.sub.1-y O.sub.b).sub.a where M, L and y are as above and b

    Abstract translation: 本发明涉及使用高活性芳烃加氢催化剂的氢化方法。 催化剂是通过分解选自钼酸金属胺，钨酸金属胺及其混合物的催化剂前体制备的，其中所述金属胺催化剂前体具有通式ML（MoyW1-yO4）a，其中M是Cr和/或 一种或多种选自Mn，Fe，Co，Ni，Cu和Zn的二价助催化剂金属; 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; 0

    Dispersed metal sulfide catalysts for hydroprocessing
    40.
    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

    Applicant: Teh Chung Ho ,  Stuart Leon Soled ,  Sabato Miseo ,  Gary Brice Mc Vicker ,  Michel Daage ,  Viktor Buchholz

    Inventor： Teh Chung Ho ,  Stuart Leon Soled ,  Sabato Miseo ,  Gary Brice Mc Vicker ,  Michel Daage ,  Viktor Buchholz

    IPC: B01J31/22 ,  B01J23/887 ,  B01J23/889 ,  B01J27/051 ,  B01J37/08 ,  B01J37/20 ,  C07B35/02 ,  C10G45/46 ,  C10G45/50 ,  B01J27/047 ,  B01J23/63 ,  B01J31/00

    CPC classification number: B01J37/086 ,  B01J23/887 ,  B01J23/8878 ,  B01J23/8892 ,  B01J27/051 ,  B01J37/20 ,  C10G45/46 ,  C10G45/50

    Abstract: 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.

    Abstract translation: 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。

Patent Agency Ranking