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    • 3. 发明授权
    • Multi-reactor hydrodesulfurization process
    • 多反应器加氢脱硫工艺
    • US4116818A
    • 1978-09-26
    • US811135
    • 1977-06-28
    • James Albert FrayerHenri K. LeseJoel Drexler McKinneyKirk J. MetzgerJohn Angelo Paraskos
    • James Albert FrayerHenri K. LeseJoel Drexler McKinneyKirk J. MetzgerJohn Angelo Paraskos
    • B01J23/85B01J35/10C10G45/08C10G65/04C10G23/02
    • B01J35/10B01J23/85B01J35/1019B01J35/1038B01J35/1042B01J35/1061C10G2300/107
    • An asphaltene-containing oil hydrodesulfurization process employing upstream and downstream reactors in series with an interstage flashing step. The catalyst in the downstream reactor comprises supported Group VI and Group VIII metals together with a promoting amount of Group IV-B metal. The particles of the catalyst in the downstream reactor are in the form of extrudates whose surface is provided with a plurality of alternating longitudinal grooves and protrusions. The catalyst in the upstream reactor comprises Group VI and Group VIII metals without promotion with Group IV-B metal and is in the form of particles whose surface may or may not have a similar grooved form. An advantageous mass velocity-related activity effect has been found when the downstream reactor has a diameter which is smaller than the diameter of the upstream reactor. The reduced diameter provides a concomitant advantage related to hydrogen pressure since it is shown that the reduced diameter permits the downstream reactor to withstand enhanced pressures and it is also shown that the promoted catalyst is particularly susceptible to regeneration via increases in hydrogen pressure.
    • 含沥青质的油加氢脱硫工艺采用上游和下游反应器与级间闪蒸步骤串联。 下游反应器中的催化剂包括负载的VI族和VIII族金属以及促进量的IV-B族金属。 下游反应器中的催化剂颗粒呈挤出物的形式,其表面设置有多个交替的纵向凹槽和凸起。 上游反应器中的催化剂包括VI族和VIII族金属,而不用IV-B族金属促进,并且其表面可以具有或不具有类似沟槽形式的颗粒形式。 当下游反应器的直径小于上游反应器的直径时,已经发现有利的质量速度相关的活性效应。 减小的直径提供了与氢压力相关的伴随优点,因为显示减小的直径允许下游反应器承受增强的压力,并且还显示促进的催化剂特别容易通过氢气压力的增加再生。