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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
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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页码:51 / 55
页数:5
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