Dual catalyst system for hydroisomerization of Fischer-Tropsch wax and waxy raffinate
    1.
    发明授权
    Dual catalyst system for hydroisomerization of Fischer-Tropsch wax and waxy raffinate 失效
    用于费 - 托蜡和蜡状提余液加氢异构化的双催化剂体系

    公开(公告)号:US07704379B2

    公开(公告)日:2010-04-27

    申请号:US10266369

    申请日:2002-10-08

    IPC分类号: C10G65/18 C10G47/02

    摘要: The present invention relates to a process for converting Fischer-Tropsch wax to high quality lube basestocks using a molecular sieve Beta catalyst followed by a unidimensional intermediate pore molecular sieve with near circular pore structures having an average diameter of 0.50 nm to 0.65 nm wherein the difference between the maximum diameter and the minimum is ≦0.05 nm. Both catalysts comprise one or more Group VIII metals. For example, a cascaded two-bed catalyst system consisting of a first bed Pt/Beta catalyst followed by a second bed Pt/ZSM-48 catalyst is highly selective for wax isomerization and lube hydrodewaxing with minimal gas formation.

    摘要翻译: 本发明涉及使用分子筛β催化剂,随后是具有平均直径为0.50nm至0.65nm的近圆孔结构的一维中孔分子筛将费 - 托蜡转化为高质量润滑油基础油料的方法,其中差异 最大直径和最小值之间为≦̸ 0.05nm。 两种催化剂都包含一种或多种VIII族金属。 例如,由第一床Pt /β催化剂和第二床Pt / ZSM-48催化剂组成的级联双床催化剂体系对于蜡异构化和具有最小气体形成的润滑油加氢脱蜡是高选择性的。