【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。更多还原

【Abstract】 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.更多还原