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    Process for presulfurizing hydrotreatment catalysts
    2.
    发明授权
    Process for presulfurizing hydrotreatment catalysts 失效
    预硫化加氢处理催化剂的工艺

    公开(公告)号：US5922638A

    公开(公告)日：1999-07-13

    申请号：US881258

    申请日：1997-06-24

    申请人： Pierre Dufresne ,  Nilanjan Brahma

    发明人： Pierre Dufresne ,  Nilanjan Brahma

    IPC分类号： B01J37/20 ,  C10G49/04 ,  B01J27/02

    CPC分类号： C10G49/04 ,  B01J37/20

    摘要： The invention relates to a process for ex-situ presulfurization of porous particles of a hydrocarbon hydroconversion catalyst that contains at least one metal or metal oxide, comprising bringing catalytic particles into contact with a presulfurizing agent that contains elementary sulfur and at least one organic liquid. It is characterized in that the process comprises preparing the presulfurizing agent in the form of an essentially homogeneous liquid and impregnating the catalyst particles with said liquid, with said elementary sulfur consequently being incorporated for the most part into the pores of the catalyst.

    摘要翻译： 本发明涉及包含至少一种金属或金属氧化物的烃加氢转化催化剂的多孔颗粒的非原位预硫化方法，其包括使催化剂颗粒与含有基本硫和至少一种有机液体的预硫化剂接触。 其特征在于该方法包括以基本均匀的液体的形式制备预硫化剂，并用所述液体浸渍催化剂颗粒，所述单元硫大部分并入催化剂的孔中。

    Offsite regeneration process for a catalyst containing at least one precious metal
    3.
    发明授权
    Offsite regeneration process for a catalyst containing at least one precious metal 失效
    含有至少一种贵金属的催化剂的非现场再生方法

    公开(公告)号：US5854162A

    公开(公告)日：1998-12-29

    申请号：US949683

    申请日：1997-10-14

    申请人： Pierre Dufresne ,  Nilanjan Brahma

    发明人： Pierre Dufresne ,  Nilanjan Brahma

    IPC分类号： B01J23/90 ,  B01J23/40 ,  B01J23/96 ,  B01J38/02 ,  B01J38/12 ,  B01J38/44 ,  C10G35/06 ,  C10G35/085 ,  B01J20/34 ,  B01J38/18 ,  B01J38/22

    CPC分类号： B01J23/96 ,  B01J38/44 ,  C10G35/085

    摘要： The invention concerns a process for the regeneration of a used hydrocarbon treatment catalyst, preferably a reforming catalyst, containing at least one precious metal preferably platinum, optionally at least one additional metal selected from the group formed by metals from groups 7, 8, 9, 10, 13 and 14 of the periodic classification of the elements and copper, optionally and preferably at least one halogen, preferably chlorine, and at least one porous support, preferably alumina, said process comprising at least one of the following two successive steps: at least one step (1) for the combustion of the coke present on said catalyst, carried out in the presence of an oxygen-containing gas, at a temperature in the range of 300.degree. C. to 680.degree. C. for a time in the range 0.3 to 7 hours, at least one step (2) for oxyhalogenation, preferably oxychlorination, carried out in a controlled air atmosphere, at a temperature in the range 350.degree. C. to 550.degree. C., for a time in the range 0.3 to 3 hours and in the presence of a halogenated compound, wherein said process is carried out offsite, and in that a moving bed furnace is used for combustion step (1) and for oxyhalogenation step (2).

    摘要翻译： 本发明涉及一种用于再生含有至少一种贵金属，优选铂，或任选至少一种另外的金属的二烃类处理催化剂，优选重整催化剂的方法，所述另外的金属选自组7,8,9， 元素和铜的任选和优选至少一种卤素，优选氯，和至少一种多孔载体，优选氧化铝的周期性分类的10,13和14，所述方法包括以下两个连续步骤中的至少一个：在 在含氧气体的存在下，在300℃至680℃的温度范围内，存在于所述催化剂上的焦炭燃烧的至少一个步骤（1）一段时间 范围为0.3〜7小时，在受控空气气氛中，在350℃〜550℃的温度范围内进行卤代卤化，优选氧氯化的至少一个步骤（2），时间范围为0.3 到3 小时，并且在卤代化合物的存在下，其中所述方法在异地进行，并且移动床炉用于燃烧步骤（1）和用于卤代卤化步骤（2）。