Advanced elevated feed distribution system for very large diameter RCC reactor risers
    9.
    发明申请
    Advanced elevated feed distribution system for very large diameter RCC reactor risers 审中-公开
    用于非常大直径的RCC反应堆立管的高级饲料分配系统

    公开(公告)号:US20080081006A1

    公开(公告)日:2008-04-03

    申请号:US11541052

    申请日:2006-09-29

    IPC分类号: F27B15/08

    摘要: An FCC process and apparatus may include injecting hydrocarbon feedstock at different radial positions inside a riser. Multiple distributors may be used to position the openings for injecting feedstock at multiple radial positions. In addition, the openings may be away from riser peripheral wall and at different elevations along the riser wall or extending up from the riser bottom. The different opening positions introduce the feedstock across a larger area of the cross-section of the riser, which may improve the feedstock dispersion and mixing with catalyst. Improved mixing may increase conversion of the feedstock. Larger FCC units generally have greater riser diameters that may cause problems for feedstock dispersion and decrease the ability for the feedstock to mix with catalyst. Injecting the feedstock at multiple radial positions may improve feedstock dispersion in larger FCC units and increase mixing.

    摘要翻译: FCC工艺和设备可以包括在提升管内部的不同径向位置注入烃原料。 可以使用多个分配器来定位用于在多个径向位置处喷射原料的开口。 此外,开口可以远离提升管周边壁并沿着提升管壁的不同高度或从提升管底部向上延伸。 不同的打开位置通过提升管的横截面的较大区域引入原料,这可以改善原料分散和与催化剂的混合。 改进的混合可增加原料的转化率。 较大的FCC单元通常具有更大的提升管直径,这可能导致原料分散问题,并降低原料与催化剂混合的能力。 在多个径向位置注入原料可以改进较大FCC单元中的原料分散并增加混合。