摘要
改进了Ellis平衡釜的保温、搅拌与压力控制系统,建立了一套可视窗口的实验装置。测定了莰烯+(+)-3-蒈烯体系在313.15、373.15和433.15 K下的汽液平衡数据;采用面积法和Van Ness检验法对实验数据进行热力学一致性检验,所有数据均符合Gibbs-Duhenm的热力学一致性;选用Aspen plus软件中NRTL、Wilson和UNIQUAC模型,由最大似然法对目标函数进行优化,实现对实验数据的关联。结果表明,气相组成和平衡压力的估算值与实验值的最大平均相对偏差为0.0128和0.0009,最大均方根偏差为0.0003和0.0012 kPa,相对挥发度的估算值与实验值的绝对平均偏差分别为0.09%、0.03%和0.04%。
The insulation, stirring and pressure control system of Ellis equilibrium still with double circulator for the vapor and liquid phases was improved, and a set of phase equilibrium experimental device with visual window was established. The vapor-liquid equilibrium data of terpene+(+)-3-decene system at 313.15, 373.15 and 433.15 K were determined. The thermodynamic consistency test was performed on the experimental data by area method and Van Ness test. All data were consistent with Gibbs-Duhenm. Furthermore, the VLE data were correlated by the nonrandom two-liquid (NRTL), Wilson and universal quasichemical (UNIQUAC) activity coefficient models in Aspen plus. The objective function was optimized by the maximum likelihood method and the corresponding binary interaction parameters were returned. The results show that the maximum average relative deviation between calculated values and experimental data of the vapor phase molar composition and equilibrium pressure was 0.0128 and 0.0009, the maximum root mean square deviations are 0.0003 and 0.0012 kPa, and the absolute average deviations of relative volatility are 0.09%, 0.03% and 0.04%, respectively.
作者
吴金芝
王琳琳
陈小鹏
童张法
范孝雄
梁保芳
WU Jinzhi;WANG Linlin;CHEN Xiaopeng;TONG Zhangfa;FAN Xiaoxiong;LIANG Baofang(College of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,Guangxi,China;Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology,Nanning 530004,Guangxi,China)
出处
《化工学报》
EI
CAS
CSCD
北大核心
2019年第6期2092-2101,共10页
CIESC Journal
基金
国家自然科学基金项目(21878056,31560241,21566002)
广西石化资源加工及过程强化技术重点实验室课题基金项目(2016Z002)
关键词
莰烯
(+)-3-蒈烯
Ellis平衡釜
等温汽液平衡
测定
关联
camphene
(+)-3-carene
Ellis equilibrium still
isothermal vapor-liquid equilibrium
determination
correlation
