Catalysts
    23.
    发明授权
    Catalysts 有权
    催化剂

    公开(公告)号:US09381501B2

    公开(公告)日:2016-07-05

    申请号:US13984104

    申请日:2012-02-07

    摘要: The invention relates to improvements in the design of Fischer-Tropsch catalysts comprising a support and cobalt on the support. A first aspect is the modification of the silica support with at least 11 wt % titania to prevent the formation of cobalt silicates, thereby limiting the deactivation resulting from the silicate formation. A second aspect is the provision of C03O4 particles highly dispersed on the catalyst support with an average particle diameter of the cobalt oxide particle of less than 12 nm in order to improve catalytic activity and selectivity. A third aspect is the deposition of the catalyst precursor on the support by contact with a solution or suspension comprising the catalyst metal precursors and a carboxylic acid, preferably an alpha-hydroxy carboxylic acid in order to minimize the fracturing and fragmentation of the catalyst precursor during the following steps of drying and calcining, thereby preventing the formation of smaller catalyst particles, which should be removed by screening in order to limit pressure drop in the reactor.

    摘要翻译: 本发明涉及在载体上包含载体和钴的费 - 托催化剂设计的改进。 第一方面是用至少11重量%的二氧化钛修饰二氧化硅载体以防止形成硅酸钴,从而限制由硅酸盐形成引起的失活。 第二方面是为了提高催化活性和选择性,提供高度分散在催化剂载体上的氧化钴颗粒的平均粒径小于12nm的C03O4颗粒。 第三方面是通过与包含催化剂金属前体和羧酸(优选α-羟基羧酸)的溶液或悬浮液的接触将催化剂前体沉积在载体上,以便最小化催化剂前体的断裂和断裂 干燥和煅烧的以下步骤,从而防止形成较小的催化剂颗粒,其应通过筛选除去以限制反应器中的压降。

    Method for preparing synthetic liquid hydrocarbons from CO and H2
    28.
    发明授权
    Method for preparing synthetic liquid hydrocarbons from CO and H2 有权
    从CO和H2制备合成液态烃的方法

    公开(公告)号:US09290700B2

    公开(公告)日:2016-03-22

    申请号:US14456932

    申请日:2014-08-11

    IPC分类号: C10G2/00 C07C1/02 C07C1/04

    摘要: The invention relates to synthesis of liquid C5 and higher hydrocarbons from CO and H2 according to the Fischer-Tropsch synthesis. An object is to provide high syngas conversion rate, minimum content of waxes in the products, high content of C10-C20 fractions per pass within a single reactor and avoidance of use of expensive catalyst components. The claimed method for preparing synthetic liquid hydrocarbons by catalytic conversion of a syngas according to the Fischer-Tropsch synthesis comprises sequential passing the reaction mixture through at least four layers of a multilayer fixed bed of granulated catalysts, wherein a first layer in the direction of passing the reaction mixture comprises a cobalt Fischer-Tropsch synthesis catalyst that provides occurring the Fischer-Tropsch synthesis at Anderson-Schulz-Flory factor of 0.67 to 0.96, a second layer in the direction of passing the reaction mixture comprises a traditional cobalt Fischer-Tropsch synthesis catalyst that provides occurring the Fischer-Tropsch synthesis at Anderson-Schulz-Flory factor of 0.82 to 0.96, a third layer in the direction of passing the reaction mixture comprises not less than 30% of H-form zeolite, and a lowermost layer comprises a traditional cobalt Fischer-Tropsch synthesis catalyst that provides occurring the Fischer-Tropsch synthesis at Anderson-Schulz-Flory factor of 0.82 to 0.96. The cobalt Fischer-Tropsch synthesis catalyst of the first layer has thermal conductivity not less than 4 watt/m·K and comprises not more than 10% of skeleton cobalt to decrease heat generation intensity in the front layer and not less than 20% of H-form zeolite.

    摘要翻译: 本发明涉及根据费 - 托合成从CO和H 2合成液态C5和高级烃。 目的是提供高合成气转化率,产物中蜡的最小含量,在单个反应器内每次通过高含量的C10-C20馏分,并避免使用昂贵的催化剂组分。 根据费 - 托合成催化转化合成气制备合成液体烃的要求保护的方法包括使反应混合物顺序通过至少四层多层固定床的粒状催化剂,其中第一层沿着通过方向 该反应混合物包含费 - 托合成催化剂钴,其在安德森 - 舒尔茨 - 弗洛因子(Anderson-Schulz-Flory)中进行费 - 托合成,为0.67至0.96,在反应混合物方向上的第二层包括传统的费 - 托合成钴 提供了在Anderson-Schulz-Flory因子中发生费 - 托合成的催化剂为0.82至0.96,在通过反应混合物的方向上的第三层包含不少于30%的H型沸石,最下层包含 传统的钴费 - 托合成催化剂,在Anderson-Sch提供了费 - 托合成 ulz-Flory因子为0.82〜0.96。 第一层的费 - 托合成催化剂的热导率不低于4瓦特/米·K,并且包含不超过10%的骨架钴以降低前层的发热强度,并且不小于20%的H 型沸石。