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    • 5. 发明授权
    • Feed mixing techique for fluidized catalytic cracking of hydrocarbon oil
    • 用于烃油流化催化裂化的饲料混合技术
    • US4523987A
    • 1985-06-18
    • US665333
    • 1984-10-26
    • Joe E. Penick
    • Joe E. Penick
    • C10G11/00B01J8/08C10G11/18
    • C10G11/18B01J8/085
    • In a fluid catalytic cracking process comprising admixing a hydrocarbon oil feed with hot regenerated catalyst in the bottom section of a reactor riser, passing the mixture of the hydrocarbon oil feed and the catalyst through the riser, thereby at least partially volatilizing the oil feed and effecting cracking thereof at the process temperature under endothermic process conditions and deactivating the catalyst by deposition of carbonaceous deposits thereon, separating the deactivated catalyst from the cracked hydrocarbonaceous feed, passing the deactivated catalyst to a regenerator vessel wherein the carbonaceous deposits are removed from the deactivated catalyst under exothermic process conditions by means of a regenerating medium introduced into the regenerator vessel, and passing the regenerated hot catalyst substantially above process cracking temperature to the bottom section of the reactor riser; the improvement comprisingcontinuously injecting liquid oil feed into a primary mixing zone in a venturi tube mixer spaced inwardly from the reactor riser wall at the bottom portion therein adjacent a regenerated catalyst return conduit;continuously passing a first portion of the hot regenerated catalyst into the venturi tube mixer sufficient to vaporize a major amount of oil feed without substantial cracking thereof; andpassing a remaining second hot regenerated catalyst portion into the reactor riser through a passage between the venturi tube mixer and reactor riser wall, thereby mixing additional hot catalyst with vaporized oil feed to crack the oil feed in the reactor riser above the venturi tube mixer.
    • 在流化催化裂解方法中,包括将碳氢化合物油进料与热再生催化剂混合在反应器提升管的底部,使烃油进料和催化剂的混合物通过提升管,从而至少部分挥发油进料并实现 在吸热过程条件下在工艺温度下开裂,并在其上沉积碳沉积物使催化剂失活,将失活的催化剂与裂化的烃类进料分离,使失活的催化剂通过再生器容器,其中将碳沉积物从失活的催化剂中除去 通过引入再生器容器的再生介质,并将再生的热催化剂大大高于工艺开裂温度,使其进入反应器提升管的底部; 改进包括将液体油进料连续地喷射到文丘里管混合器中的文丘里管混合器中,该文丘里管混合器在其邻近再生催化剂返回导管的底部处与反应器提升管壁向内间隔开; 将热再生催化剂的第一部分连续地通入文氏管混合器中,足以蒸发大量的油进料而没有实质的裂化; 并将剩余的第二热再生催化剂部分通过文丘里管混合器和反应器提升管壁之间的通道传送到反应器提升管中,由此将附加的热催化剂与汽化的进料混合物裂解在文丘里管混合器上方的反应器提升管中的油进料。