FCC process with enclosed vented riser

    公开(公告)号:US5393415A

    公开(公告)日:1995-02-28

    申请号:US804311

    申请日:1991-12-06

    IPC分类号: C10G11/18

    CPC分类号: C10G11/18

    摘要: An FCC process uses a highly efficient separation device to remove product from the catalyst so that the reactor vessel receives a low volume of feed hydrocarbons and riser by-products. The separation device encloses an upwardly directed outlet end of a ballistic separation device in low volume disengaging vessel that collects disengaged catalyst from the riser in a dense bed. Immediate contact of the dense bed with a stripping fluid minimizes the amount of hydrocarbons that are carried out of the disengaging vessel into the open volume of the reactor vessel.

    Fluidized catalytic cracking of hydrocarbons utilizing a vented riser
    133.
    发明授权
    Fluidized catalytic cracking of hydrocarbons utilizing a vented riser 失效
    使用排气式提升管的碳氢化合物的流化催化裂化

    公开(公告)号:US5364515A

    公开(公告)日:1994-11-15

    申请号:US8274

    申请日:1993-01-25

    IPC分类号: C10G11/18

    CPC分类号: C10G11/18

    摘要: An FCC process and apparatus is arranged to provide a low volume dilute disengagement zone in a reactor vessel. A vented riser that provides an open discharge of catalyst and gaseous products is directly discharged into a reactor vessel. The interior of the reactor vessel is arranged such that the outlet of the reactor riser is located close to and directed at the top of the reactor vessel. The reactor vessel operates with a dense bed of catalyst having an upper bed level that is only a short distance below the outlet of the reactor riser. The cyclone separators are located to the outside of the reactor riser and circulate catalyst directly back to the reactor riser or directly to an independent stripping vessel that returns the catalyst to the regenerator.

    摘要翻译: FCC方法和装置被布置成在反应器容器中提供低体积的稀释分离区。 提供催化剂和气体产物的开放排放的排气提升管直接排放到反应器容器中。 反应器容器的内部被布置成使得反应器提升管的出口靠近并且指向反应器容器的顶部。 反应器容器具有致密的催化剂床,其具有在反应器提升管的出口下方仅较短距离的上层水平。 旋风分离器位于反应器提升管的外部,并将催化剂直接循环回反应器提升管,或直接循环到将催化剂返回到再生器的独立汽提容器。

    Vented riser apparatus and method
    134.
    发明授权
    Vented riser apparatus and method 失效
    通风立管装置及方法

    公开(公告)号:US5182085A

    公开(公告)日:1993-01-26

    申请号:US785956

    申请日:1991-10-31

    IPC分类号: C10G11/18

    CPC分类号: C10G11/18

    摘要: An FCC process and apparatus is arranged to provide a low volume dilute disengagement zone in a reactor vessel. A vented riser that provides an open discharge of catalyst and gaseous products is directly discharged into a reactor vessel. The interior of the reactor vessel is arranged such that the outlet of the reactor riser is located close to and directed at the top of the reactor vessel. The reactor vessel operates with a dense bed of catalyst having an upper bed level that is only a short distance below the outlet of the reactor riser. The cyclone separators are located to the outside of the reactor riser and circulate catalyst back to the dense bed of the reactor section.

    摘要翻译: FCC方法和装置被布置成在反应器容器中提供低体积的稀释分离区。 提供催化剂和气体产物的开放排放的排气提升管直接排放到反应器容器中。 反应器容器的内部被布置成使得反应器提升管的出口靠近并且指向反应器容器的顶部。 反应器容器具有致密的催化剂床,其具有在反应器提升管的出口下方仅较短距离的上层水平。 旋风分离器位于反应器提升管的外部,并将催化剂循环回反应器部分的致密床。