High-Pressure Vapor-Liquid Equilibria Measurement of Carbon Dioxide-Ethanol-Water Systems and Prediction with the Peng-Robinson Equation of State for Supercritical Fluid Extraction and Separation Processes

被引：0
|
作者：
Nomura, Shun [1 ]
Ota, Masak [2 ]
Sato, Yoshiyuk [1 ,3 ]
Inomata, Hiroshi [1 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Chem Engn, 6611403 Aoba,Aramaki,Aoba Ku, Sendai, Miyagi 9808579, Japan
[2] Tohoku Univ, Grad Sch Environm Studies, Dept Frontier Sci Adv Environm, 6-6-11-403 Aoba,Aramaki,Aoba Ku, Sendai, Miyagi 9808579, Japan
[3] Tohoku Inst Technol, Dept Appl Chem & Environm, 35-1 Yagiyama, Senda, Miyagi 9828577, Japan
来源：
KAGAKU KOGAKU RONBUNSHU | 2023年 / 49卷 / 03期
关键词：
Supercritical Carbon Dioxide; Subcritical Solvent Separation; Model; PHASE-EQUILIBRIA; DISTRIBUTION COEFFICIENTS; HOPS-EXTRACT; MIXTURES; CO2;
D O I：
10.1252/kakoronbunshu.49.51
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The high-pressure vapor-liquid equilibria of a CO2-ethanol-water system was measured using a flow-type device at temperatures of 313-353 K and a pressure of 8 MPa. With the obtained vapor-liquid equilibria data and the data of previous report (Sato et al., 2019), the applicability of a correlation method using the van der Waals one fluid (vdW1) mixing rule and Wong-Sandler (WS) mixing rule in the Peng-Robinson equation of state was confirmed. From an estimation made using the temperature-dependent approximation formula of fitting parameters determined by the cor-relation, the applicability of both the vdW1 mixing rule and WS mixing rule to CO2-ethanol-water systems was sug-gested.
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收藏
页码：51 / 55
页数：5
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