High-pressure vapor-liquid phase equilibrium data for carbon dioxide＋ isopentanol were measured at tempera- tures of 313.2, 323.1, 333.5 and 343.4 K in the pressure range of 4.64 to 12.71 MPa in a variable-volume hig...High-pressure vapor-liquid phase equilibrium data for carbon dioxide＋ isopentanol were measured at tempera- tures of 313.2, 323.1, 333.5 and 343.4 K in the pressure range of 4.64 to 12.71 MPa in a variable-volume high-pressure visual cell. The experimental data were well correlated with Peng-Robinson equation of state （PR-EOS） together with van der Waals-2 two-parameter mixing rule, and the binary interaction parameters were obtained. Henry coefficients and partial molar volumes of CO2 at infinite dilution were estimated based on Krichevsky-Kasarnovsky equation, and Henry coefficients increase with increasing temperature, however, partial molar volumes of CO2 at infinite dilution are negative and the magnitudes decrease with temperature.展开更多
该研究通过比较D101、D204、AB-8、X-5四种大孔树脂对白葡萄酒中异戊醇的吸附效果,选取最佳大孔树脂,并从动力学的角度对其吸附及解吸特性进行研究。结果表明,D101大孔树脂振荡吸附效果最佳,对异戊醇的吸附率达53%,其在体积分数为60%的...该研究通过比较D101、D204、AB-8、X-5四种大孔树脂对白葡萄酒中异戊醇的吸附效果,选取最佳大孔树脂,并从动力学的角度对其吸附及解吸特性进行研究。结果表明,D101大孔树脂振荡吸附效果最佳,对异戊醇的吸附率达53%,其在体积分数为60%的乙醇中解吸48 h时对异戊醇的解吸率最高,达77%,具有良好的可重复利用性。D101大孔吸附树脂对白葡萄酒中异戊醇的吸附符合Langmuir吸附等温模型,可用准一级动力学吸附模型描述。采用流速为2 m L/min的体积分数为60%的乙醇对D101大孔树脂进行动态解吸时,36 h可达到最佳解吸效果,最大解吸率为84%。展开更多
文摘High-pressure vapor-liquid phase equilibrium data for carbon dioxide＋ isopentanol were measured at tempera- tures of 313.2, 323.1, 333.5 and 343.4 K in the pressure range of 4.64 to 12.71 MPa in a variable-volume high-pressure visual cell. The experimental data were well correlated with Peng-Robinson equation of state （PR-EOS） together with van der Waals-2 two-parameter mixing rule, and the binary interaction parameters were obtained. Henry coefficients and partial molar volumes of CO2 at infinite dilution were estimated based on Krichevsky-Kasarnovsky equation, and Henry coefficients increase with increasing temperature, however, partial molar volumes of CO2 at infinite dilution are negative and the magnitudes decrease with temperature.
文摘该研究通过比较D101、D204、AB-8、X-5四种大孔树脂对白葡萄酒中异戊醇的吸附效果,选取最佳大孔树脂,并从动力学的角度对其吸附及解吸特性进行研究。结果表明,D101大孔树脂振荡吸附效果最佳,对异戊醇的吸附率达53%,其在体积分数为60%的乙醇中解吸48 h时对异戊醇的解吸率最高,达77%,具有良好的可重复利用性。D101大孔吸附树脂对白葡萄酒中异戊醇的吸附符合Langmuir吸附等温模型,可用准一级动力学吸附模型描述。采用流速为2 m L/min的体积分数为60%的乙醇对D101大孔树脂进行动态解吸时,36 h可达到最佳解吸效果,最大解吸率为84%。
