| CO_2-甲醇和CO_2-乙醇体系的界面性质 |
| |
| 引用本文： | 付东.CO_2-甲醇和CO_2-乙醇体系的界面性质[J].中国科学:化学,2011(5):821-827. |
| |
| 作者姓名： | 付东 |
| |
| 作者单位： | 华北电力大学环境科学与工程学院; |
| |
| 基金项目： | 国家自然科学基金(21076070); 中央高校基本科研业务费专项资金(09MG13)资助 |
| |
| 摘 要： | 在交叉缔合的均相状态方程的基础上,结合密度梯度理论(density gradient theory,DGT),建立了适用于CO2-甲醇和CO2-乙醇二元体系界面性质研究的状态方程,对CO2-乙醇体系表面张力的关联结果与实验值吻合良好.阐明了CO2分子与甲醇分子和乙醇分子之间的交叉缔合作用对二元体系表面张力计算结果的影响,以及界面相中CO2与醇羟基之间的交叉缔合与温度和压力之间的关系.
|
| 关 键 词： | CO2-甲醇 CO2-乙醇 交叉缔合 密度梯度理论 界面性质 |
Investigation of the interfacial properties for CO_2-methanol and CO_2-ethanol mixtures |
| |
| FU Dong School of Environmental Science , Engineering,North China Electric Power University,Baoding ,China.Investigation of the interfacial properties for CO_2-methanol and CO_2-ethanol mixtures[J].Scientia Sinica Chimica,2011(5):821-827. |
| |
| Authors: | FU Dong School of Environmental Science Engineering North China Electric Power University Baoding China |
| |
| Affiliation: | FU Dong School of Environmental Science and Engineering,North China Electric Power University,Baoding 071003,China |
| |
| Abstract: | An equation of state (EOS) applicable for the interfacial properties of CO2-methanol and CO2-ethanol mixtures was established by combining the cross-association EOS and the density gradient theory (DGT). The correlated surface tensions of CO2-ethanol mixtures agreed well with the experimental data. The results illustrated the temperature and pressure dependence of the cross-association between CO2 and alcohol hydroxyls in the whole vapor-liquid surface, and the influence of the cross-association on the calc... |
| |
| Keywords: | CO2-methanol CO2-ethanol cross-association density gradient theory interfacial properties |
| 本文献已被 CNKI 维普 等数据库收录！ |
