氢化松脂体系汽液平衡测定与关联  

Determination and correlation of vapor-liquid equilibrium of the hydrogenated pine resin system

作　　者：杨和见 任宝光 陈小鹏 王琳琳 梁杰珍 张众尧 YANG Hejian;REN Baoguang;CHEN Xiaopeng;WANG Linin;LIANG Jiezhen;ZHANG Zhongyao(Wuzhou Huangpu Chemical Pharmaceutical Co.Ltd.,Wuzhou 543000,China;School of Chemistry and Chemical Engineering,Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology,Guangxi University,Nanning 530004,China)

机构地区：[1]梧州黄埔化工药业有限公司,广西梧州543000 [2]广西大学化学化工学院,广西石化资源加工及过程强化技术重点实验室,广西南宁530004

出　　处：《高校化学工程学报》2023年第5期858-862,共5页Journal of Chemical Engineering of Chinese Universities

基　　金：国家自然科学基金(31960294,21878056);广西石化资源加工及过程强化技术重点实验室课题基金(2019Z002)。

摘　　要：为了解决氢化松脂蒸馏分离问题,采用带有搅拌桨的改进Ellis平衡釜和气相色谱分析方法,测定了在常压和温度为169.2~176.2℃下氢化松脂体系汽液平衡数据;采用NRTL、Wilson和UNIQUAC模型对氢化松脂体系汽液平衡数据进行热力学关联;由相对挥发度判断了单萜烃和倍半萜烃分离难易程度。结果表明,氢化松脂体系汽液平衡数据经Herington积分法检验,所得实验数据符合热力学一致性;采用NRTL、Wilson和UNIQUAC模型计算时,气相摩尔分数的平均绝对偏差为0.0121、最大偏差为0.0373,温度的平均绝对偏差为1.5℃、最大偏差为2.8℃,即3种模型对氢化松脂体系汽液平衡计算都适用;单萜烃与倍半萜烃相对挥发度范围为1.924~2.146,因而单萜烃与倍半萜烃分离有一定难度。In order to solve the problem of distillation separation of hydrogenated pine resin,the vapor-liquid equilibrium data of the hydrogenated pine resin system were measured at atmospheric pressure and temperatures from 169.2 to 176.2℃using a modified Ellis equilibrium kettle with stirring and a gas chromatographic analysis method.NRTL,Wilson and UNIQUAC models were used to correlate the vapor-liquid equilibrium data thermodynamically.Separation difficulty of monoterpene and sesquiterpene hydrocarbons was judged by relative volatility.The results show that the vapor-liquid equilibrium data of the hydrogenated pine resin system obtained by the Herington integration method are consistent with the thermodynamics.When calculated using the NRTL,Wilson and UNIQUAC models,the mean absolute deviation of the gas-phase mole fraction was 0.0121 with a maximum deviation of 0.0373,and the mean absolute deviation of the temperature was 1.5℃with a maximum deviation of 2.8℃,which indicates that the three models are applicable to the hydrogenated pine resin system.The relative volatility of monoterpene hydrocarbons and sesquiterpene hydrocarbons ranged from 1.924 to 2.146,thus it is difficult to separate monoterpene hydrocarbons from sesquiterpene hydrocarbons.

关 键 词：氢化松脂 氢化松香 单萜烃 倍半萜烃 汽液平衡 

分 类 号：O642.42[理学—物理化学]