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    Process for restoring deactivated catalysts
    2.
    发明授权
    Process for restoring deactivated catalysts 失效
    恢复失活催化剂的方法

    公开(公告)号：US4937215A

    公开(公告)日：1990-06-26

    申请号：US256697

    申请日：1988-10-12

    申请人： Takashi Murakawa ,  Tomoaki Hirano

    发明人： Takashi Murakawa ,  Tomoaki Hirano

    IPC分类号： B01J29/90 ,  C10G35/095

    CPC分类号： C10G35/095 ,  B01J29/90 ,  Y10S502/517

    摘要： A process for restoring deactivated catalysts containing zeolite with a noble metal of Group VIII of the Periodic Table and to be used in the production of aromatic compounds, wherein decoking of the deactivated catalysts is carried out in the presence of halogen or a halogen-containing compound. This restoration process permits effective restoration of deactivated catalysts and thus is expected to be employed in the fields of petroleum purification, petrochemistry and so forth.

    Catalyst for the production of aromatic hydrocarbons
    3.
    发明授权
    Catalyst for the production of aromatic hydrocarbons 失效
    用于生产芳烃的催化剂

    公开(公告)号：US4681865A

    公开(公告)日：1987-07-21

    申请号：US856756

    申请日：1986-04-28

    申请人： Hisashi Katsuno ,  Takashi Murakawa ,  Toshikazu Yoneda

    发明人： Hisashi Katsuno ,  Takashi Murakawa ,  Toshikazu Yoneda

    IPC分类号： B01J29/62 ,  B01J29/74 ,  C07C5/41 ,  C07C15/00 ,  B01J29/12

    CPC分类号： C07C5/417 ,  B01J29/62

    摘要： A catalyst for production of aromatic hydrocarbons and a process for producing aromatic hydrocarbons from various hydrocarbons using said catalyst are disclosed. The catalyst comprises a L-type zeolite treated with a halogen-containing compound and platinum deposited thereon, which is of high activity and then has a long service life. The process of the present invention using the catalyst enables to produce aromatic hydrocarbons in a yield as high as not less than 80% for a long time. The hydrocarbon feedstock is selected from paraffin, olefin, acetylene, cyclic paraffin, and cyclic olefin-based hydrocarbons.

    摘要翻译： 公开了一种用于生产芳烃的催化剂和使用所述催化剂从各种烃生产芳族烃的方法。 催化剂包括用含卤素化合物和沉积在其上的铂处理的L型沸石，其活性高，然后具有较长的使用寿命。 使用该催化剂的本发明的方法能够长时间产生高达不小于80％的芳族烃。 烃原料选自石蜡，烯烃，乙炔，环状链烷烃和环烯烃类烃。

    Process for regenerating a deactivated catalyst
    4.
    发明授权
    Process for regenerating a deactivated catalyst 失效
    再生失活催化剂的方法

    公开(公告)号：US5260238A

    公开(公告)日：1993-11-09

    申请号：US951454

    申请日：1992-09-25

    申请人： Takashi Murakawa ,  Michio Sugimoto

    发明人： Takashi Murakawa ,  Michio Sugimoto

    IPC分类号： C07C5/373 ,  B01J29/90 ,  B01J38/54 ,  C07C15/04 ,  B01J29/38 ,  B01J38/60 ,  B01J38/66 ,  C10G35/095

    CPC分类号： B01J29/90 ,  B01J38/54

    摘要： There is disclosed a process for regenerating a deactivated catalyst containing a zeolite and a noble metal of group VIII of the Periodic Table supported thereon which comprises subjecting the deactivated catalyst to decoking treatment under reductive or oxidative condition and subsequently to contact treatment with a solution containing a halogen or a halogen-containing compound and thereafter calcining the deactivated catalyst. According to the above process, the catalytic activity of a deactivated catalyst is restored to the level comparable to that of a fresh catalyst by the use of an inexpensive regenerating agent and simplified steps. Thus, the regeneration process is expected to find effective use in petroleum refinery, petrochemical industry, etc.