Matlab在二元完全理想系相平衡关系计算中的应用  

Application of Matlab in the Calculation of Phase Equilibrium Relationship of Binary Perfect Ideal System

作　　者：黄英虎 农正东 邢靓 郭效瑛 李素萍 马理 李伟 HUANG Ying-hu;NONG Zheng-dong;XING Liang;GUO Xiao-ying;LI Su-ping;MA Li;Li Wei(College of Chemistry&Environment Engineering,Baise University,Baise 533000,China)

机构地区：[1]百色学院化学与环境工程学院,广西百色533000

出　　处：《安徽化工》2023年第6期211-216,共6页Anhui Chemical Industry

基　　金：广西高等教育教学改革工程项目(2022JGA332);百色学院校级一流课程(课程思政示范课程)建设项目(2022KC46)。

摘　　要：选取了直接计算法和三种相对挥发度法(几何平均法、对数平均法和算术平均法)计算二元完全理想系的泡露点温度、饱和气液相组成。以苯-甲苯体系为例,研究了Matlab在完全理想系相平衡关系计算中的应用,并以直接计算法为基准,对计算结果进行相对偏差分析。结果发现,在给定条件下,三种相对挥发度法以几何平均法为最优,其次是对数平均法,算术平均法最差。因三者计算的最大相对偏差仅为0.12%,三种方法均可用于二元完全理想系相平衡关系的计算。In this paper,the direct calculation method and three relative volatility methods(geometric mean method,logarithmic mean method and arithmetic mean method)are selected to calculate the bubble point and dew point temperature,and the saturated vapor-liquid phase composition of binary perfect ideal system.Taking benzene-toluene system as an example,the application of Matlab in the calculation of phase equilibrium relationship of perfect ideal system is studied.Based on the direct calculation method,the relative deviation of the calculation results is analyzed.The results show that,under the given conditions,the geometric mean method is the best of the three relative volatility methods,followed by the logarithmic mean method,and the arithmetic mean method is the least favored one.Since the maximum relative deviation of the three methods is just 0.12%,they can be used to calculate the phase equilibrium of binary perfect ideal systems.

关 键 词：二元完全理想系 直接计算法 相对挥发度法 相平衡关系计算 MATLAB 

分 类 号：G642[文化科学—高等教育学]