大型反应精馏塔板上传质的二维定数混合池模拟  

Simulation of the Concentration Field on Large Reactive Distillation Tray

作　　者：宋海华[1] 邬慧雄[1] 马海洪[2] 

机构地区：[1]天津大学化工学院,天津300072 [2]天津大学石油化工技术开发中心,天津300072

出　　处：《化学反应工程与工艺》2003年第3期227-231,共5页Chemical Reaction Engineering and Technology

摘　　要：　介绍了大型塔板涉及反应精馏的传质与操作过程,通过对塔板上液体流动分布以及化学反应过程的分析,建立了能够关联液体流速分布和化学反应的塔板液相浓度计算模型。最后将二维定数混合池模型与描述传质的微分方程联立,利用有限元法求解了大型反应精馏塔板上的液相浓度分布。An eddy diffusion model taking into account of liquid velocity distribution and reaction was presented, which is relatively simpler and more effective to practical process. It makes calculation of the concentration field on the large reactive distillation tray calculation possible by adopting the twodimensional fixed number mixing pool model to describe the liquid flow behavior and the flow and mixing parameters. The system of nonlinear partial differential equations for describing the concentration field on the large tray of reactive distillation was solved by the finiteelement method.

关 键 词：反应精馏塔 塔板 传质 二维定数混合池模拟 液相浓度场模拟 分离 流体力学 

分 类 号：TQ028.13[化学工程]