Process for increasing carbon monoxide hydrogenation activity of catalysts via low temperature oxidation with water, steam or mixture thereof
    1.
    发明授权
    Process for increasing carbon monoxide hydrogenation activity of catalysts via low temperature oxidation with water, steam or mixture thereof 失效
    用水,蒸汽或其混合物通过低温氧化提高催化剂一氧化碳氢化活性的方法

    公开(公告)号:US06531517B1

    公开(公告)日:2003-03-11

    申请号:US09630279

    申请日:2000-08-01

    IPC分类号: C07C2700

    摘要: A process for increasing the hydrogenation activity, particularly the carbon monoxide hydrogenation activity, of a catalyst or catalyst precursor comprised of a particulate solids support component and a catalytic metal, or metals component, preferably cobalt; cobalt alone or cobalt and an additional metal, or metals added to promote or modify the reaction produced by the cobalt. Treatment of the catalyst, or catalyst precursor is conducted at low temperature ranging from ambient to about 275° C. sufficient to form on the surface of a catalyst precursor, e.g., a cobalt catalyst precursor, a cobalt metal hydroxide, low valence cobalt metal oxide, or mixture of cobalt metal hydroxide and low valence cobalt metal oxide. Sometimes also metallic metal, e.g., cobalt, is also formed, and dispersed on the surface of the support. On reduction, as may be produced by contact and treatment of the catalyst or catalyst precursor with hydrogen, the oxidized metal, or metals component of the catalyst or catalyst precursor is reduced to elemental or metallic metal, and the activity of the catalyst thereby increased. A catalyst, activated or produced in this manner, is a useful composition of matter, the catalyst being particularly useful for efficiently conducting carbon monoxide hydrogenation reactions, especially F-T synthesis reactions, to provide a variety of useful products.

    摘要翻译: 由颗粒固体支持组分和催化金属或金属组分,优选钴组成的催化剂或催化剂前体的加氢活性,特别是一氧化碳氢化活性的方法; 钴或单独的钴和另外的金属,或添加以促进或改变由钴产生的反应的金属。 催化剂或催化剂前体的处理在室温至约275℃的低温下进行,足以在催化剂前体(例如钴催化剂前体,钴金属氢氧化物,低价钴金属氧化物)的表面上形成 ,或钴金属氢氧化物和低价钴金属氧化物的混合物。 有时还形成金属金属,例如钴,并分散在载体的表面上。 在还原时,如可以通过用氢接触和处理催化剂或催化剂前体而产生的,催化剂或催化剂前体的氧化金属或金属组分被还原成元素或金属金属,因此催化剂的活性增加。 以这种方式活化或生产的催化剂是物质的有用组合物,催化剂特别可用于有效地进行一氧化碳氢化反应,特别是F-T合成反应,以提供各种有用的产物。