NH_3-CO_2-H_2O体系热力学汽液平衡计算应用  

Thermodynamic Equilibrium Calculation and Application of the NH_3-CO_2-H_2O System

作　　者：张香平[1] 袁一[1] 詹世亮[1] 姚平经[1] 

机构地区：[1]大连理工大学化工学院,辽宁大连116012

出　　处：《化学工程》2002年第2期64-67,共4页Chemical Engineering(China)

摘　　要：基于Edwards模型对NH3 CO2 H2 O体系进行了热力学平衡模拟计算 ,开发了在较稀浓度范围内收敛性较好的计算程序 ,所得计算结果与文献实验数据的偏差在允许范围之内。对尿素流程冷凝工段的闪蒸过程进行了模拟计算 ,结果同实验数据及设计数据吻合较好。Based on the Edwards′ thermodynamic model,the program of simulation calculation has been developed for NH 3 CO 2 H 2O solution.The comparison with literature data reveals a good agreement.This program has been applied for calculating the phase equilibrium of the condensers in the urea process successfully.The calculated results agreed well with the design values.

关 键 词：NH3-CO2-H2O体系 热力学 汽液平衡 计算 应用 相平衡 尿素 生产流程 

分 类 号：TQ015.9[化学工程]