作者：
郑佩;王琳琳;梁杰珍;陈小鹏;童张法;韦小杰;唐锐;
机构：
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;
中文关键词：
柠檬醛;;α-紫罗兰酮;;β-紫罗兰酮;;色谱;;汽液平衡;;活度系数
中文摘要：
采用顶空气相色谱法测定了柠檬醛(1)+α-紫罗兰酮(2)、柠檬醛(1)+β-紫罗兰酮(2)和α-紫罗兰酮(1)+β-紫罗兰酮(2)体系在333.15、368.15和403.15 K温度下的等温汽液相平衡数据;采用Redlich-Kister面积检验法和van Ness点检验法进行热力学一致性检验;采用Aspen plus V10.0软件、Britt-Luecke算法回归NRTL和UNIQUAC活度系数模型参数;采用NRTL活度系数模型计算体系的超额自由焓(G~E)。结果表明,所测体系的p-T-x-y数据均符合热力学一致性;柠檬醛(1)+α-紫罗兰酮(2)、柠檬醛(1)+β-紫罗兰酮(2)和α-紫罗兰酮(1)+β-紫罗兰酮(2)体系的气相组成(y_1)的计算值与实验值的最大平均绝对偏差(AAD)分别为0.0044、0.0060和0.0032;三组二元体系G~E的正、负偏差最大值分别为0.4002、0.2315和–0.7143 kJ·mol~(-1)。
英文篇名：
Vapor-liquid equilibrium for citral + α-ionone + β-ionone systems using headspace gas chromatography method
英文作者：
ZHENG Pei;WANG Linlin;LIANG Jiezhen;CHEN Xiaopeng;TONG Zhangfa;WEI Xiaojie;TANG Rui;College of Chemistry and Chemical Engineering, Guangxi University;Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology;
英文摘要：
Isothermal vapor-liquid equilibrium(VLE) data for citral(1) +α-ionone(2), citral(1) +β-ionone(2) and α-ionone(1) +β-ionone(2) were measured at 333.15, 368.15 and 403.15 K using headspace gas chromatography method. Redlich-Kister area test method and van Ness point test method were used to check the thermodynamic consistency. Aspen plus V10.0 software and Britt-Luecke algorithm were used to return the NRTL and UNIQUAC activity coefficient model parameters. Furthermore, the excess Gibbs energy(G~E) for all systems were calculated using the NRTL model. The results showed all experimental p-T-x-y data satisfied the requirements of thermodynamic consistency. The maximum absolute average deviation(AAD) of vapor compositions between calculated and experimental data for citral(1) +α-ionone(2), citral(1) +β-ionone(2) and α-ionone(1) +β-ionone (2) systems at the measured temperatures were 0.0044,0.0060 and 0.0032, respectively. The maximum G~E for three systems were 0.4002, 0.2315 and–0.7143 kJ·mol~(-1), respectively.
英文关键词：
citral;;α-ionone;;β-ionone;;chromatography;;vapor-liquid equilibrium;;activity coefficient
