采用ｋ－ε－Ｅ模型对射流携带床气化炉内α－萘酚与对氨基苯磺酸重氮盐的偶合竞争串联反应的分隔指数进行了数值模拟，研究了气化炉出口面积、长径比、两股射流动量比对分隔指数的影响。模拟结果表明，ｋ－ε－Ｅ模型由于同时考虑了宏观混合和微观混合的作用，其预测值和实验测试值吻合较好。 The k-ε-E model was used to numerically simulate the partitioning index of tandem reaction between α-naphthol and diazonium sulfanilate in a jet entrained-bed gasifier. The outlet area, length Diameter ratio, two jet momentum ratio of the partition index. The simulation results show that the k-ε-E model is in good agreement with the experimental values ​​due to the fact that both macro-mixing and micro-mixing are considered.