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    DISPOSITIF D'ECHANTILLONNAGE DE SOLIDES GRANULAIRES
    85.
    发明公开
    DISPOSITIF D'ECHANTILLONNAGE DE SOLIDES GRANULAIRES 审中-公开

    公开(公告)号：EP3387409A1

    公开(公告)日：2018-10-17

    申请号：EP16795274.6

    申请日：2016-11-08

    申请人： AXENS

    发明人： DESPAUX, Yvan

    IPC分类号： G01N1/08 ,  G01N1/20 ,  G01N1/10 ,  G01N33/00

    摘要： The invention relates to a device for sampling and extracting at least one granular solid in a stack of granular solids. Said device includes a sampling probe (1), a sample collector (2) connected to said sampling probe (1), and a control member (3). Said sampling probe (1) comprises a sampling tube (4) and at least one transfer tube (5). Said sampling tube (4) and said transfer tube (5) include at least one central channel and at least two side channels. Said central channel (6a) of said sampling tube (4) includes a collection space (10) having a system (11) for holding said granular solid. Said side channels (7a, 7b) of said sampling (4) and transfer (5) tubes are connected to a gas source (12) capable of extracting said granular solid held in the collection space (10) by the side channels (8a, 8b) of said sampling (4) and transfer (5) tubes. The sampling (4) and transfer (5) tubes each include an additional side channel connected to a gas source.

    PROCEDE ET DISPOSITIF POUR LA REDUCTION DES COMPOSES AROMATIQUES POLYCYCLIQUES LOURDS DANS LES UNITES D'HYDROCRAQUAGE
    88.
    发明公开
    PROCEDE ET DISPOSITIF POUR LA REDUCTION DES COMPOSES AROMATIQUES POLYCYCLIQUES LOURDS DANS LES UNITES D'HYDROCRAQUAGE 审中-公开
    PROCEDE ET ET DISPOSITIF POUR LA REDUCTION DES COMPOSES AROMATIQUES POLYCYCLIQUES LOURDS DANS LES UNITES D'HYDROCRAQUAGE

    公开(公告)号：EP3237578A1

    公开(公告)日：2017-11-01

    申请号：EP15817223.9

    申请日：2015-12-17

    申请人： AXENS

    发明人： SAUGE, Thibault ,  GONZALEZ LLAMAZARES, Roberto ,  BONNARDOT, Jérôme ,  FRECON, Jacinthe

    IPC分类号： C10G47/00 ,  C10G7/00

    摘要： The invention relates to a method and an apparatus for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycling loop of hydrocracking units, said apparatus including a fractioning column. According to said method, a portion of the flow is drawn off from the fractioning column, which flow is present in the region of at least one tray (I) that is the feed tray or a tray located between the feed tray and said residue discharge point or, if stripping gas is injected, between the feed tray and said stripping gas injection point. A portion, or preferably all, of said flow that has been drawn off is recycled in the hydrocracking step, directly or after optional separation of the gases. The residue is completely purged. In a preferred embodiment, a portion of a flow is furthermore drawn off from the column, which flow is present in the region of at least one tray (II) located between the feed tray and the draw-off tray for the heaviest distillate fraction. After stripping, all or some of the gas is recycled in the column and the liquid is conveyed to the hydrocracking.

    摘要翻译： 本发明涉及用于降低加氢裂化装置循环回路中重质多环芳族化合物（HPNA）浓度的方法和装置，所述装置包括分馏塔。 根据所述方法，从分馏塔抽出一部分流体，该流体存在于作为进料盘的至少一个塔盘（I）或位于进料盘和所述残余物排放口之间的塔盘的区域中 或者如果注入汽提气体，则在进料盘和所述汽提气体注入点之间。 已经排出的所述流的一部分或优选全部在加氢裂化步骤中直接或在任选分离气体之后再循环。 残留物被完全清除。 在一个优选实施方案中，一部分流体进一步从塔中排出，该流体存在于位于进料塔盘和用于最重馏分的排出塔盘之间的至少一个塔盘（II）的区域中。 汽提后，全部或部分气体在塔中循环，液体输送到加氢裂化。