Measurement and correlation of high pressure vapor-liquid equilibria for the systems ethylene-1-butene and ethylene-propylene.
Measurement and correlation of high pressure vapor-liquid equilibria for the systems ethylene-1-butene and ethylene-propylene.
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DOI：
10.1252/jcej.14.1
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发表时间：
1981-02
影响因子：
0.8
通讯作者：
H. Bae;Kunio Nagahama;M. Hirata
中科院分区：
文献类型：
--
作者：
H. Bae;Kunio Nagahama;M. Hirata
新设计和制造了一种仪器，用于在-50°C至50°C的温度范围内，在高达100 atm的压力下研究高压汽液平衡。视觉型静态仪器的特点是包括一个专门设计的液相采样装置，以减少采样期间的实验误差，以及一个磁驱动搅拌器，通过该搅拌器，气相分散到细胞内的液相中。用该装置测量了乙烯-丙烯体系在-10.08°、0.07°、10.07°和20.14°C以及乙烯-1-丁烯在-0.01°、10.01°和20.20°C时的二元汽液平衡数据。用三个状态方程将得到的数据关联起来。除了在接近临界点的区域外，预测结果与实验数据吻合较好。
An apparatus is newly designed and constructed for investigation of high-pressure vapor-liquid equilibrium in the temperature range -50°C to 50°C at pressures up to 100 atm. The visual type of static apparatus is distinguished by the inclusion of a specially designed sampling device for liquid phase to reduce experimental error during the sampling, and of a magnetically driven agitator by which the vapor phase is dispersed into the liquid phase within the cell. Using this apparatus, the binary vapor-liquid equilibrium data for the ethylene-propylene system at -10.08°, 0.07°, 10.07° and 20.14°C, and ethylene-1-butene at -0.01°, 10.01° and 20.20°C are measured. The data obtained are correlated by using three equations of state. The predicted results are in good agreement with the experimental data except in the region close to the critical point.