催化裂化提升管反应器内原料油和催化剂颗粒间存在强烈地传质、传热和动量传递 ,同时进行着复杂地裂化反应。描述流化状态的催化剂颗粒流动特征非常困难 ,而它对裂化反应的影响又至关重要 ,因此本文从颗粒速度分布函数出发 ,推导出催化剂颗粒相流动方程结合油气湍流流动 ,耦合集总动力学模型 ,得到了催化裂化提升管反应器数学模型 ,为进一步研究提升管内的反应特征和反应历程提供了有力手段 In the FCC riser reactor, there is a strong mass transfer, heat transfer and momentum transfer between the crude oil and the catalyst particles, and complicated cracking reactions are carried out at the same time. It is very difficult to describe the flow characteristics of the catalyst particles in the fluidized state and its influence on the cracking reaction is very important. Therefore, based on the particle velocity distribution function, this paper derives the particle flow equation of the catalyst combined with the turbulent flow of oil and gas, Model, the mathematical model of FCC riser reactor was obtained, which provided a powerful tool for further research on enhancing the reaction characteristics and reaction course in the pipe