| 流体振荡对纯液体气液相平衡压力的影响 |
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| 引用本文： | 吴彩艳,严为,张珍禛,郭锴.流体振荡对纯液体气液相平衡压力的影响[J].北京化工大学学报(自然科学版),2012,39(4):22-25. |
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| 作者姓名： | 吴彩艳 严为 张珍禛 郭锴 |
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| 作者单位： | 北京化工大学化学工程学院教育部超重力工程研究中心,北京,100029;北京化工大学化学工程学院教育部超重力工程研究中心,北京,100029;北京化工大学化学工程学院教育部超重力工程研究中心,北京,100029;北京化工大学化学工程学院教育部超重力工程研究中心,北京,100029 |
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| 摘 要： | 通过恒温水浴振荡器使液体（乙醇、异丙醇和水）产生振荡，以此研究在振荡条件下气液相平衡压力与饱和蒸汽压的偏离程度。结果表明：流体的振荡使气液相平衡压力与其饱和蒸汽压发生了明显的偏移，且偏移程度随振荡时间的增加而增大，3min左右趋于稳定；振荡频率越大、温度越高偏移程度越大，在温度35℃和振荡频率210min-1的条件下，乙醇最大偏移程度为14.5%。
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| 关 键 词： | 气液相平衡 饱和蒸汽压 流体振荡 |
| 收稿时间： | 2012-02-23 |
Influence of liquid oscillation on the gas-liquid equilibrium pressure |
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| WU CaiYan
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YAN Wei
,
ZHANG ZhenZhen
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GUO Kai.Influence of liquid oscillation on the gas-liquid equilibrium pressure[J].Journal of Beijing University of Chemical Technology,2012,39(4):22-25. |
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| Authors: | WU CaiYan YAN Wei ZHANG ZhenZhen GUO Kai |
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| Institution: | Research Center of the Ministry of Education for High Gravity Engineering and Technology, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | The gas-liquid equilibrium pressures of ethanol, isopropanol and water were studied in order to investigate their deviations from saturation pressures. By means of an oscillator, liquid was forced to oscillate with a certain frequency. The pressure above the liquid level increased and stopped rising within about 3 minutes. The results showed that the pressure of the gas was higher than its saturation pressure. The deviation increased with increasing frequency or increasing temperature. At a temperature of 35℃ and an oscillation frequency of 210min-1, the maximum deviation of the pressure of ethanol was 14.5%. |
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