Process for middle distillate production from fischer-tropsch waxes using a modified-zeolite-based catalyst by a basic treatment
    3.
    发明申请
    Process for middle distillate production from fischer-tropsch waxes using a modified-zeolite-based catalyst by a basic treatment 有权
    通过基础处理使用改性沸石型催化剂从费托蜡生产中间馏分的方法

    公开(公告)号:US20110120910A1

    公开(公告)日:2011-05-26

    申请号:US12942315

    申请日:2010-11-09

    IPC分类号: C10G69/02 C10G47/20 C10G35/04

    摘要: This invention describes a process for the production of middle distillates from a paraffinic feedstock that is produced by Fischer-Tropsch synthesis, implementing a hydrocracking/hydroisomerization catalyst that comprises at least one hydro-dehydrogenating metal that is selected from the group that is formed by the metals of group VIB and group VIII of the periodic table and a substrate that comprises at least one dealuminified Y zeolite that has an initial overall atomic ratio of silicon to aluminum of between 2.5 and 20, a starting extra-lattice aluminum atom fraction by weight that is greater than 10%, relative to the total mass of aluminum that is present in the zeolite, a starting mesopore volume that is measured by nitrogen porosimetry that is greater than 0.07 ml.g−1, and a starting crystalline parameter ao of the elementary mesh of between 24.38 Å and 24.30 Å, whereby said zeolite is modified by a) a basic treatment stage consisting in mixing said dealuminified Y zeolite with a basic aqueous solution, and at least one heat treatment stage c).

    摘要翻译: 本发明描述了一种由费 - 托合成生产的石蜡原料生产中间馏分的方法,其实施加氢裂化/加氢异构化催化剂,其包含至少一种加氢脱氢金属,其选自由 元素周期表VIB族和VIII族的金属以及包含至少一种脱铝Y沸石的底物,其具有硅与铝的初始总原子比为2.5至20,起始晶格间铝原子级分的重量比为 相对于存在于沸石中的铝的总质量大于10%,通过氮气孔率法测量的起始中孔体积大于0.07ml.g-1,并且初级晶体参数ao为初级 筛网在24.38埃至24.30埃之间,由此所述沸石通过以下步骤进行改性:a)将所述脱铝Y沸石w 碱性水溶液和至少一个热处理阶段c)。