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由已建立的催化裂化提升管反应器流动反应模型及其程序对提升管反应器进料段改进操作、优化流动状况等方面进行了数值模拟研究，从气固两相流动机理对提升管进料段内的流动状态进行了分析，从而可定量地掌握这一过程操作改进的实质。结果表明，提高预提升蒸汽量，可改善提升管反应器进料段内的流动状态。优化气固两相的接触，减少回流引起的油气与催化剂的返混，且随着预提升蒸汽量的提高，轻质油收率增加，气体和焦炭产率下降，产物分布得到改善。
The established FCC riser reactor flow reaction model and its program were used to improve the reactor riser section to improve the operation and optimize the flow conditions and other aspects of the numerical simulation study from the gas-solid two-phase flow mechanism on the riser feed Section of the flow of the state were analyzed, which can quantitatively grasp the essence of this process to improve the operation. The results show that increasing the amount of pre-boosted steam can improve the flow in the feed section of the riser reactor. The contact between gas and solid is optimized to reduce backmixing of hydrocarbon and catalyst caused by backflow. With the increase of pre-lift steam, the yield of light oil increases, the yield of gas and coke decreases, and the product distribution is improved.