PALLADIUM-BASED CATALYST FOR SELECTIVE HYDROGENATION OF ACETYLENE
    1.
    发明申请
    PALLADIUM-BASED CATALYST FOR SELECTIVE HYDROGENATION OF ACETYLENE 审中-公开
    用于乙炔选择性氢化的基于钯的催化剂

    公开(公告)号:WO2004085353A8

    公开(公告)日:2005-11-17

    申请号:PCT/EP2004003263

    申请日:2004-03-26

    摘要: The present invention describes a Pd-catalyst, further consisting of La, Ti, Nb, K or Si, which have high ethylene selectivity even after a low temperature reduction in the se-lective hydrogenation of acetylene to ethylene and the production method of the same. A catalyst of the invention consists essentially of 0.05 to 2.0% by weight, based on the supported catalyst, of palladium and one or two metals chosen form the group consist-ing of lanthanum, niobium, titanium, potassium and silicon. The said catalyst is pre-pared by the following procedure: 1) Impregnating a support in aqueous solution of tetra amine palladium hydroxide, followed by drying and calcination; 2) The second and, if necessary, a third metal is impregnated by impregnating the Pd-catalyst in the solution of the metal precursor followed by drying and calcina-tion; 3) The catalyst according to step (2) is then reduced in hydrogen at 200°C to 600°C for 1 to 5 hours.

    摘要翻译: 本发明描述了一种Pd催化剂,其进一步由La,Ti,Nb,K或Si组成,即使在乙炔对乙烯的选择性氢化中的低温还原后也具有高的乙烯选择性及其制备方法 。 本发明的催化剂基本上由基于负载型催化剂的0.05至2.0重量%的钯和选自镧,铌,钛,钾和硅组成的组中的一种或两种金属组成。 所述催化剂通过以下步骤预处理:1)将载体浸渍在四胺氢氧化钯水溶液中,然后干燥和煅烧; 2)如果需要,通过将Pd催化剂浸渍在金属前体溶液中,然后干燥和煅烧来浸渍第二金属和必要时浸渍第三金属; 3)然后根据步骤(2)的催化剂在氢气中在200℃至600℃下还原1至5小时。

    SYNGAS CONVERSION CATALYST PRODUCTION AND USE THEREOF
    9.
    发明申请
    SYNGAS CONVERSION CATALYST PRODUCTION AND USE THEREOF 审中-公开
    SYNGAS转换催化剂生产及其使用

    公开(公告)号:WO1986000885A1

    公开(公告)日:1986-02-13

    申请号:PCT/GB1985000330

    申请日:1985-07-25

    IPC分类号: C07C01/04

    摘要: A composition for use after reductive activation as a catalyst for the conversion of synthesis gas to hydrocarbons having a carbon number greater than one, which composition has the formula: RuaAbCeOx wherein A is an alkali metal, x is a number such that the valence requirements of the other elements for oxygen is satisfied, a is greater than zero and less than 1% w/w, based on the total weight of the composition, b is in the range from zero to 10% w/w, based on the total weight of the composition, and Ce and O constitute the remainder of the composition, is produced by the process comprising the steps of: (A) bringing together in solution soluble salts of the metals ruthenium and cerium and a precipitant comprising a carbonate and/or bicarbonate and/or a hydroxide of an alkali metal or ammonium under conditions whereby there is formed a precipitate comprising ruthenium and cerium in the form of compounds thermally decomposable to their oxides, and (B) recovering the precipitate obtained in step (A). Also a process for the conversion of synthesis gas using the catalyst produced as aforesaid, optionally in combination with a zeolite.