Process for regeneration of a catalyst that contains an EUO-structural-type zeolite
    8.
    发明授权
    Process for regeneration of a catalyst that contains an EUO-structural-type zeolite 有权
    含有EUO结构型沸石的催化剂的再生方法

    公开(公告)号:US07405174B2

    公开(公告)日:2008-07-29

    申请号:US11216098

    申请日:2005-09-01

    IPC分类号: B01J20/34

    摘要: A process for regeneration of a catalyst that comprises at least one EUO-structural-type zeolite in acid form and at least one hydro-dehydrogenating metal, used in a process for isomerization of a hydrocarbon feedstock that comprises aromatic compounds with eight carbon atoms, comprising at least a) a stage for eliminating a majority of the coke, deposited on said catalyst, by combustion in the presence of a gas that contains oxygen at a temperature that is less than or equal to 600° C., and b) a stage for oxychlorination of the product that is obtained from stage a), carried out between 200 and 550° C. in the presence of at least one gas mixture that contains at least oxygen, water and chlorine and/or at least one chlorinated compound, is described.

    摘要翻译: 一种催化剂再生方法,该催化剂包含至少一种酸形式的EUO结构型沸石和至少一种加氢脱氢金属,其用于包含具有8个碳原子的芳族化合物的烃原料异构化方法,包括 至少a)通过在小于或等于600℃的温度下含有氧的气体存在下通过燃烧除去沉积在所述催化剂上的大部分焦炭的阶段,以及b)阶段 在至少一种至少含有氧,水和氯的气体混合物和/或至少一种氯化化合物的存在下,在200-550℃之间进行从a)阶段获得的产物的氧氯化,是 描述。