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    • 30. 发明申请
    • Integrated Isomerization and Hydrotreating Process
    • 综合异构化和加氢处理工艺
    • US20130062257A1
    • 2013-03-14
    • US13559802
    • 2012-07-27
    • Omer Refa Koseoglu
    • Omer Refa Koseoglu
    • C10G69/02B01J8/00B01D3/06C10G7/00
    • C10G25/00C10G45/58C10G65/00C10G65/043C10G65/16C10G67/00C10G67/06C10G67/16C10G2300/1059C10G2300/202C10G2300/301
    • Deep desulfurization of hydrocarbon feeds containing undesired organosulfur compounds to produce a hydrocarbon product having low levels of sulfur, i.e., 15 ppmw or less of sulfur, is achieved by flashing the feed at a target cut point temperature to obtain two fractions. A low boiling temperature fraction contains refractory, sterically hindered sulfur-containing compounds, which have a boiling point at or above the target cut point temperature. A high boiling temperature fraction, having a boiling point below the target cut point temperature, is substantially free of refractory sulfur-containing compounds. The high boiling temperature fraction is contacted with isomerization catalyst, and the isomerized effluent and the low boiling temperature fraction are combined and contacted with a hydrotreating catalyst in a hydrodesulfurization reaction zone operating under mild conditions to reduce the quantity of organosulfur compounds to an ultra-low level.
    • 通过在目标切割点温度下使进料闪烁以获得两个级分来实现含有不需要的有机硫化合物的烃进料的深度脱硫以产生具有低含量硫的烃产物,即15ppmw或更少的硫。 低沸点馏分含有难燃的位阻含硫化合物,其沸点等于或高于目标馏分温度。 沸点低于目标切割点温度的高沸点温度馏分基本上不含难熔含硫化合物。 使高沸点馏分与异构化催化剂接触,并将异构化流出物和低沸点馏分合并,并在温和条件下加氢脱硫反应区中与加氢处理催化剂接触,将有机硫化合物的量减少至超低 水平。