甲醇-四氟丙醇汽液相平衡研究  

Vapor-Liquid Equilibria for Methanol-TFP System

作　　者：周涛[1] 吕克新[1] 刘登华[1] 孙超[2] 高军[3] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083 [2]潍坊科技学院化学工程学院,山东寿光262700 [3]山东科技大学化学与环境工程学院,山东青岛266510

出　　处：《湖南工业大学学报》2011年第6期33-37,共5页Journal of Hunan University of Technology

摘　　要：利用汽液相平衡仪测定了甲醇-四氟丙醇二元体系在常压下的汽液平衡数据,并采用Herington半经验法对所得数据进行了热力学一致性检验,采用Wilson模型和NRTL模型进行了关联计算。研究结果表明:试验测定的甲醇-四氟丙醇体系汽液相平衡数据符合热力学一致性要求;经关联计算,得到甲醇-四氟丙醇二元体系在Wilson模型中的交互作用能量参数(λ12-λ11)/R为-223.99 K,(λ21-λ22)/R为174.12 K;该体系在NRTL模型中的交互作用能量参数(g12-g11)/R为478.41 K,(g21-g22)/R为-624.15 K。The vapor-liquid equilibria data of methanol-TFP binary system were determined by using the steam liquid phase balancing apparatus under the atmospheric pressure. The thermodynamic consistency test was conducted for the experimental data by Herington semiempirical method. A correlated calculation was done on the vapor-liquid equilibria data by Wilson model and NRTL model. The results show that： the vapor-liquid equilibria data of methanol-TFP binary system meet the requirements of thermodynamics consistency; and for the calculated methanol-TFP binary system, the interaction energy parameters（λ12-λ11）[R and （λ21-λ22）]R in the Wilson model are -223.99 K and 174.12 K, respectively, but in the NRTL model the parameters （g12-g11）]R and （g21-g22）]R are 478.41 K and -624.15 K, respectively.

关 键 词：汽液相平衡 甲醇 四氟丙醇 

分 类 号：TQ013.1[化学工程]