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根据重油催化裂化集总动力学建立了提升管反应器重油流动反应模型,并对工业提升管反应器进行了数值模拟计算.结果表明,进料段是整个提升管最复杂的部分,气固两相的温度和各产物产率在3个坐标方向上都存在较大的梯度.对比反应器出口重要参数的计算值和工业数据,两者基本吻合,说明该模型对工业提升管反应器出口参数和反应结果具有较好的预测性.由各产物产率沿提升管高度的变化可得到裂化反应历程,可为提升管反应器新技术的开发和实施提供先期的理论指导
According to the kinetics of heavy oil catalytic cracking, the heavy oil flow reaction model of riser reactor was established, and the numerical simulation of industrial riser reactor was carried out. The results show that the feed section is the most complicated part of the whole riser. The temperature of gas-solid two phases and the yield of each product have a large gradient in three coordinate directions. Comparing the calculated values of the important parameters of the reactor exit with the industrial data, the two are in good agreement with each other, indicating that the model has good predictability for the exit parameters and reaction results of the industrial riser reactor. The process of cracking reaction can be obtained from the variation of product yield along the height of riser, which can provide advance theoretical guidance for the development and implementation of new technology for riser reactor