Catalysts for the conversion of syn gas
    1.
    发明授权
    Catalysts for the conversion of syn gas 失效
    催化剂用于转化合成气

    公开(公告)号:US4665042A

    公开(公告)日:1987-05-12

    申请号:US733823

    申请日:1985-05-14

    摘要: A catalyst system for the conversion of synthesis gas in a single stage to liquid hydrocarbons comprises(a) a copper-containing alcohol synthesis catalyst,(b) an iron-containing modifier for the alcohol synthesis catalyst to promote the formation of hydrocarbons, and(c) a metallosilicate wax cracking catalyst.The alcohol synthesis catalyst (a) can contain thorium, zinc, uranium or zirconium in addition to the copper.The iron-containing modifier (b) can contain an iron-containing zeolite such as ferrierite or an inorganic support containing ferrous or ferric ions. The metallosilicate can be a zeolite or gallosilicate. The zeolite can have a pore diameter of at least 5 Angstroms and can have the faujasite structure. A Group VIIIA metal e.g., Pd may be incorporated on the zeolite to suppress coke formation.A hydrocarbon product from the conversion can be obtained containing at least 70 percent by weight of hydrocarbons in the range C.sub.3 to a boiling point of 340.degree. C., and less than 10 percent by weight of methane.

    摘要翻译: 用于将单一阶段的合成气转化成液体烃的催化剂体系包括(a)含铜醇合成催化剂,(b)用于促进烃形成的醇合成催化剂的含铁改性剂,和(b) c)金属硅酸盐裂化催化剂。 除了铜之外,醇合成催化剂(a)可以含有钍,锌,铀或锆。 含铁改性剂(b)可以含有含铁沸石,如镁碱沸石或含铁或铁离子的无机载体。 金属硅酸盐可以是沸石或硅酸盐。 沸石的孔径至少为5埃,可以具有八面沸石结构。 可以将ⅦA族金属例如Pd掺入到沸石上以抑制焦炭形成。 可以获得来自转化的烃产物,其含有至少70重量%的C3至340℃的烃和小于10重量%的甲烷。

    Oxygenate condensation
    3.
    发明授权
    Oxygenate condensation 失效
    含氧缩合

    公开(公告)号:US4935538A

    公开(公告)日:1990-06-19

    申请号:US041509

    申请日:1987-04-23

    IPC分类号: B01J23/84 B01J23/89 B01J27/18

    摘要: The process for the production of high molecular weight oxygenates by condensing low molecular weight oxygenates in the presence of CO and a catalyst having the general formula A.sub.a CuM.sub.c X.sub.d O.sub.x. In addition, a novel condensation catalyst comprising A.sub.a CuM.sub.c Bi.sub.d O.sub.x is disclosed for use in this process.

    摘要翻译: 在CO存在下通过冷凝低分子量含氧化合物和具有通式AaCuM​​cXdOx的催化剂来生产高分子量含氧化合物的方法。 此外,公开了一种新型的包含AaCuM​​cBidOx的缩合催化剂用于该方法。

    Two-stage maleic anhydride hydrogenation process for 1,4-butanediol
synthesis
    4.
    发明授权
    Two-stage maleic anhydride hydrogenation process for 1,4-butanediol synthesis 失效
    二步马来酸酐加氢法合成1,4-丁二醇

    公开(公告)号:US5196602A

    公开(公告)日:1993-03-23

    申请号:US814644

    申请日:1991-12-30

    IPC分类号: C07C29/149

    CPC分类号: C07C29/149

    摘要: Maleic anhydride is hydrogenated to produce 1,4-butanediol in a two-stage process. In the first stage maleic anhydride and/or maleic acid contacted with hydrogen at a temperature of about 100.degree. C. to about 350.degree. C. in the presence of a suitable hydrogenation catalyst to produce succinic anhydride and/or gamma-butyrolactone. In the second stage, the succinic anhydride and/or gamma-butyrolactone and hydrogen are contacted at a temperature of about 180.degree. C. to about 350.degree. C. in the presence of a ruthenium-containing hydrogenation catalyst to produce 1,4-butanediol.

    摘要翻译: 将马来酸酐氢化成两步法制备1,4-丁二醇。 在第一阶段中,马来酸酐和/或马来酸在合适的氢化催化剂存在下,在约100℃至约350℃的温度下与氢气接触以产生琥珀酸酐和/或γ-丁内酯。 在第二阶段中,琥珀酸酐和/或γ-丁内酯和氢在约180℃至约350℃的温度下在含钌氢化催化剂的存在下接触以产生1,4-丁二醇 。

    Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol
    5.
    发明授权
    Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol 有权
    将马来酸氢化成1,4-丁二醇的两阶段方法

    公开(公告)号:US06989455B2

    公开(公告)日:2006-01-24

    申请号:US10645429

    申请日:2003-08-21

    CPC分类号: C07C29/149 C07C31/207

    摘要: In the process for the conversion of maleic acid to gamma-butyrolactone, 1.4-butanediol and/or tetrahydrofuran, a feedstream comprising maleic acid is hydrogenated in a first hydrogenation zone to produce a reaction product comprising succinic acid and unreacted hydrogen which is then supplied to a second hydrogenation zone, where succinic acid is converted to 1,4-butanediol, the temperatures of the feedstream comprising maleic acid and the first hydrogenation zone are controlled such that the temperature of maleic acid in the feedstream and the first hydrogenation zone does not exceed about 130° C., thereby minimizing the corrosive effects of the maleic acid and prolonging reactor life and improving overall process economics.

    摘要翻译: 在将马来酸转化为γ-丁内酯,1,4-丁二醇和/或四氢呋喃的过程中,将包含马来酸的原料流在第一氢化区中氢化以产生包含琥珀酸和未反应的氢的反应产物,然后将其供应至 第二氢化区,其中琥珀酸被转化成1,4-丁二醇,控制包含马来酸和第一氢化区的进料流的温度使得进料流和第一氢化区中马来酸的温度不超过 约130℃,从而最小化马来酸的腐蚀作用并延长反应器寿命并改善整体工艺经济性。

    Process for the hydrogenation of maleic acid to 1,4-butanediol
    6.
    发明授权
    Process for the hydrogenation of maleic acid to 1,4-butanediol 失效
    马来酸氢化为1,4-丁二醇的方法

    公开(公告)号:US5473086A

    公开(公告)日:1995-12-05

    申请号:US373666

    申请日:1995-01-17

    摘要: Maleic acid, maleic anhydride or other hydrogenatable precursor are catalytically hydrogenated to 1,4-butanediol and tetrahydrofuran. It has been discovered that high yields of 1,4-butanediol are achieved when the hydrogenation catalyst comprises palladium, silver and rhenium on a carbon support and is prepared by the steps of(i) impregnating a carbon support with a source of palladium, silver and rhenium, wherein the source of palladium, silver and rhenium is at least one solution,(ii) after each impregnation step, drying the impregnated carbon support to remove solvent,(iii) heating the impregnated carbon support at a temperature of about 120.degree. C. to about 350.degree. C. under reducing conditions.The palladium in the catalyst is present in the form of crystallites having a particle size of less than 10 nm.

    摘要翻译: 将马来酸,马来酸酐或其它可氢化的前体催化氢化成1,4-丁二醇和四氢呋喃。 已经发现,当氢化催化剂在碳载体上包含钯,银和铼时,实现了高收率的1,4-丁二醇,并且通过以下步骤制备:(i)用钯,银浸渍碳载体 和铼,其中钯,银和铼的来源是至少一种溶液,(ii)在每个浸渍步骤之后,干燥浸渍的碳载体以除去溶剂,(iii)在约120℃的温度下加热浸渍的碳载体 在还原条件下,C至约350℃。 催化剂中的钯以粒径小于10nm的微晶的形式存在。

    Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and
gamma-butyrolactone
    8.
    发明授权
    Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone 失效
    马来酸酐与四氢呋喃和γ-丁内酯的气相氢化

    公开(公告)号:US4965378A

    公开(公告)日:1990-10-23

    申请号:US370925

    申请日:1989-06-23

    IPC分类号: C07D307/08 C07D315/00

    CPC分类号: C07D315/00 C07D307/08

    摘要: Tetrahydrofuran and optionally gamma-butyrolactone are prepared from at least one of maleic anhydride or succinic anhydride by catalytically hydrogenating vaporous maleic anhydride or vaporous succinic anhydride in the presence of hydrogen and a catalyst comprising the mixed oxides of copper, zinc and aluminum.

    摘要翻译: 在氢气和包含铜,锌和铝的混合氧化物的催化剂的存在下,通过催化氢化气态马来酸酐或蒸气性琥珀酸酐,由马来酸酐或琥珀酸酐中的至少一种制备四氢呋喃和任选的γ-丁内酯。