Hydrocracking process
    3.
    发明授权
    Hydrocracking process 失效
    加氢裂化过程

    公开(公告)号:US4902392A

    公开(公告)日:1990-02-20

    申请号:US139545

    申请日:1987-12-30

    IPC分类号: C10G47/12 C10G47/16

    CPC分类号: C10G47/12 C10G47/16

    摘要: A catalytic hydrocracking process for use in refining various petroleum based feedstocks to lighter hydrocarbons. The hydrocracking process for treatment of petroleum fractions utilizes a catalyst comprising (a) a layered metal oxide of the titanometallate type intercalated with an interspathic polymeric chalcogenide, e.g., polymeric silica, (b) a transition hydrogenation metal selected from Group IVA, VIA, and VIIIA of the Periodic Table such as platinum and the like, and optionally, (c) a conventional cracking component, e.g., a large pore crystalline silicate component.

    摘要翻译: 用于将各种石油基原料精炼成轻质烃的催化加氢裂化方法。 用于处理石油馏分的加氢裂化方法使用催化剂,其包含(a)层状金属螯合物层状金属氧化物,其中嵌入有层状聚合硫族化物,例如聚合二氧化硅,(b)选自IVA族,VIA族和 周期表的VIIIA,例如铂等,和任选地,(c)常规的裂化组分,例如大孔结晶硅酸盐组分。

    Gasket Retention System for Flange Coupling
    4.
    发明申请
    Gasket Retention System for Flange Coupling 审中-公开
    用于法兰连接的垫圈固定系统

    公开(公告)号:US20120007358A1

    公开(公告)日:2012-01-12

    申请号:US12831807

    申请日:2010-07-07

    IPC分类号: F16L17/06 F16L23/00

    CPC分类号: F16L23/20 F16L23/003

    摘要: A gasket retention system and flange coupling has a ring gasket that disposes in seal seats on opposing flanges. One or more retainer tabs extend from an outer periphery of the ring gasket. Preferably, the ring gasket defines a slot on the outer periphery, and the retainer tab affixes with an interference fit in the slot to be held therein. The retainer tab defines a transverse opening therethrough. When the ring gasket fits into the seal seat of one of the flanges, the transverse opening of the tab fits onto a fastener affixed in a pre-drilled hole in the face of the flange.

    摘要翻译: 垫圈保持系统和法兰连接件具有环形垫圈,其配置在相对的法兰上的密封座中。 一个或多个保持器突片从环形垫圈的外周边延伸。 优选地,环形垫片在外周边上限定一个狭槽,并且保持器突片以过盈配合固定在待保持在其中的槽中。 保持器翼片限定穿过其中的横向开口。 当环形垫圈装配到一个法兰的密封座中时,突片的横向开口装配到固定在凸缘表面上的预钻孔中的紧固件上。