乙二醇单醚在超临界二氧化碳中溶解度的研究及关联  

Solubility of Ethylene Glycol Mono-Ether in Supercritical Carbon Dioxide Experimental Determination and Correlation

作　　者：杨海健[1] 张宁[1] 金晶[1] 张宇[1] 向力[1] 李欢欢[1] 

机构地区：[1]中南民族大学化学与材料科学学院,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2011年第3期1-6,共6页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家自然科学基金资助项目(20607031)

摘　　要：采用静态法测试了乙二醇单甲醚、乙二醇单丁醚在超临界二氧化碳中的溶解度,测试温度分别为313,323,333,343,353和363 K,压力为8.2～18.3 MPa;利用2种半经验公式Bartle和Chrastil对溶解度进行了计算和关联,结果表明:溶解度的实验值与理论值具有良好的一致性,其平均相对偏差范围分别为8.88%～16.72%和6.00%～7.84%;根据Kumar and Johnston理论,由溶解度数据计算不同温度下2种物质在超临界CO2中的偏摩尔体积V珔2.The solubilities of ethylene glycol monomethyl ether and ethylene glycol monobutyl ether were measured at temperatures ranging from 313 to 363 K and pressures from 8.2 to 18.3 MPa in supercritical carbon dioxide.The solubility data were calculated and correlated using a semiempirical Bartle and Chrastil model,which showed satisfactory agreement with each other and the average absolute relative deviations were in the range of 8.88 %-16.72 % and 6.00 %-7.84 % respectively.According to the theory developed by Kumar and Johnston,solubility data were also used to estimate the partial molar volumes 2 for compounds at different temperatures in the supercritical phase using.

关 键 词：超临界CO2 溶解度 Bartle模型 Chrastil模型 Kumar and Johnston理论 偏摩尔体积 

分 类 号：O513[理学—低温物理]