Pretreatment method for C.sub.8 aromatic isomerization process
    1.
    发明授权
    Pretreatment method for C.sub.8 aromatic isomerization process 失效
    C8芳族异构化方法的预处理方法

    公开(公告)号:US5321184A

    公开(公告)日:1994-06-14

    申请号:US997831

    申请日:1992-12-29

    IPC分类号: C07C5/27 C07C5/22

    CPC分类号: C07C5/2702 C07C5/2724

    摘要: A pretreatment method for a C.sub.8 aromatic isomerization process wherein the isomerization catalyst is initially contacted with a C.sub.8 aromatic feedstock under high severity isomerization conditions for a period of time sufficient to deposit a substantial amount to carbonaceous material on the catalyst. After pretreatment, the carbon-laden catalyst continues to be contacted by the C.sub.8 aromatic feedstock under less severe conditions than that of the pretreatment mode of operation.

    摘要翻译: 用于C8芳族异构化方法的预处理方法,其中异构化催化剂最初在高严重度异构化条件下与C8芳族原料接触一段足以在催化剂上沉积大量碳质材料的时间。 在预处理之后,碳载体催化剂在比预处理操作模式更恶劣的条件下继续与C8芳族原料接触。

    Removal of Peroxide Impurities from Naphtha Stream
    3.
    发明申请
    Removal of Peroxide Impurities from Naphtha Stream 有权
    从石脑油中去除过氧化物杂质

    公开(公告)号:US20090188839A1

    公开(公告)日:2009-07-30

    申请号:US12021047

    申请日:2008-01-28

    IPC分类号: C10G25/00

    摘要: A method and apparatus for removing peroxides from an exposed naphtha stream is shown and described. The process includes the catalytic reactive oxygen stripping of peroxides thereby generating hydrocarbons and oxygen. Numerous conventional catalysts may be employed. The catalytic stripping reaction can be carried out at substantially lower temperatures than conventional reboiled oxygen strippers thereby resulting in substantial energy savings. Further, the disclosed reactor vessels are substantially smaller and less expensive to build than conventional oxygen stripper columns. The disclosed energy efficient reactive oxygen stripping process and equipment is intended to be utilized upstream of a naphtha hydrotreating unit.

    摘要翻译: 显示和描述从暴露的石脑油流中除去过氧化物的方法和装置。 该方法包括过氧化物的催化活性氧气脱除,从而产生烃和氧。 可以使用许多常规的催化剂。 催化汽提反应可以在比常规再沸氧脱氧剂基本上更低的温度下进行,从而导致显着的能量节省。 此外,所公开的反应器容器比常规氧气汽提塔更小且更便宜。 公开的能量效率的活性氧气脱除方法和设备旨在用于石脑油加氢处理装置的上游。