LIQUID-LIQUID PHASE EQUILIBRIUM IN SATURATED HYDROCARBON - ARENES C6-C8 - MIXED EXTRACTANT SYSTEMS

被引：1
|
作者：
Gaile, A. A. [1 ]
Erzhenkov, A. S. [1 ]
Koldobskaya, L. L. [1 ]
Solovykh, I. A. [1 ]
机构：
[1] St Petersburg State Technol Inst, KINEF, JSC, St Petersburg, Russia
来源：
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS | 2011年 / 47卷 / 02期
关键词：
reformate; C-6-C-8; arenes; trithylene glycol; sulfolane; liquid-liquid phase diagrams;
D O I：
10.1007/s10553-011-0269-0
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Experimental data are reported on liquid-liquid equilibrium in saturated hydrocarbon - C-6-C-8 arene - mixed extractant (triethylene glycol-sulfolane-water) pseudoternary systems of varying composition at 50 degrees C. It was shown that increasing the sulfolane: TEG ratio from 21.7:78.3 to 60:40 changes the character of the bimodal curve in the phase diagram from the open to the closed type. As a result, for the same ratio of extractant and feedstock, all of the extraction indices - the degree of extraction, distribution coefficients, and arene content in the extractant - improved and the hydrocarbon fractionation factors increased.
引用
收藏
页码：134 / 139
页数：6
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