蒎烷饱和蒸汽压的测定与关联  

Measurement and Correlation for Saturated Vapor Pressure of Pinane

作　　者：祝远姣[1] 陈小鹏[1] 王琳琳[1] 韦小杰[1] 阳承利[1] 童张法[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《高校化学工程学报》2003年第5期564-568,共5页Journal of Chemical Engineering of Chinese Universities

基　　金：国家自然科学基金资助项目(29766002);广西青年科学基金资助项目(0135030);广西自然科学基金资助项目(0229005)。

摘　　要：采用改进的Ellis平衡釜和毛细管气相色谱分析方法,测定了常压及在绝对压力59.34~93.93kPa、温度421.23~441.06K条件下高浓度蒎烷体系的汽液平衡数据.根据稀溶液的溶剂符合Raoult定律的规则,由Raoult定律计算出上述实验温度下蒎烷和顺式蒎烷的饱和蒸汽压,然后使用EVIEWS数理统计软件回归出Antoine方程的A、B、C参数分别为:蒎烷9.299577,325.7533,-319.4974;顺式蒎烷9.271801,321.8889,-319.400,从而建立了蒎烷和顺式蒎烷的饱和蒸汽压与温度的关联式.其计算蒸汽压的相对误差范围为0.046%~0.18%,并用对应态基团贡献法估算了蒎烷的蒸汽压,相对误差为1.4%.The vapor-liquid equilibrium data of high concentration pinane system were determined at atmospheric pressure , varies pressures ranging from 59.34 kPa to 93.93 kPa and in the temperature range of 421.23~441.06K by using the modified Ellis still and capillary tube gas chromatograph analysis method. Based on the regulation that the solvent in dilute solution accords with Raoult抯 law, the saturated vapor pressures of pinane and cis-pinane at experimental temperatures were calculated by Raoult抯 law, respectively, and their Antoine parameters (A,B,C) were regressed as follows: pinane(9.299577, 325.7533, -319.4974), cis-pinane(9.271801, 321.8889, -319.400). The correlations between saturated vapor pressure and temperature for pinane and cis-pinane were obtained, and the relative error was 0.046%~0.18%. The saturated vapor pressure of pinane was also estimated by corresponding state group contribution method, the relative error was 1.4%. It is very useful to provide the Antoine parameters of pinane system for the calculation and correlation of vapor-liquid equilibrium data.

关 键 词：蒎烷 饱和蒸汽压 汽液平衡 Antoine方程 

分 类 号：O642.42[理学—物理化学] TQ013.1[理学—化学]