N-甲酰吗啉萃取精馏分离芳烃和非芳烃的工艺模拟与过程参数优化  

Process Simulation and Parameter Optimization of Separating Aromatics and Non-aromatics by Extractive Distillation with N-Formylmorpholine

作　　者：朱慧[1] 史贤林[1] 周文勇[1] 

机构地区：[1]华东理工大学化工学院,上海200237

出　　处：《华东理工大学学报（自然科学版）》2008年第3期309-314,共6页Journal of East China University of Science and Technology

摘　　要：利用Aspen Plus软件,采用Dort mund修正的UNIFAC基团贡献法预测含N-甲酰吗啉烃类体系的汽液相平衡,建立了N-甲酰吗啉萃取精馏分离芳烃的过程模型。模拟结果表明:该模型能够较好地反映工艺装置的实际操作状况。在此基础上,考察了溶剂比、回流比及苯/甲苯馏分、溶剂进料位置等参数对分离过程的影响,获得了N-甲酰吗啉萃取精馏过程的最佳工艺参数。Vapor-liquid equilibrium data of N-formylmorpholine and hydrocarbons system is predicted with the improved UNIFAC group contribution method modified by Dortmund. A model of separating aromatics from non-aromatics by extractive distillation with N-formylmorpholine is set up based on Aspen Plus. The result indicates that the model is well agree with the real operation condition of the industry unit. The influences of several parameters such as solvent/feed ratio, reflux ratio and feed location of benzene/toluene fraction and solvent on the separation process is studied. The optimum operation parameters are obtained which can be used to improve the process.

关 键 词：萃取精馏 N-甲酰吗啉 过程模拟 参数优化 芳烃 

分 类 号：O626[理学—有机化学] TQ028.32[理学—化学]