Phase Equilibria for the Carbon Dioxide-Ethanol-Water System with Trace Amounts of Organic Components

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Toru Takatsuka¹  Shinji Miyamoto²  Seiya Hirohama¹  Tunehisa Muto² 

[1] Chiyoda Corp.;Idemitsu Petrochemical Co.

关键词: Phase Equilibrium;    Carbon Dioxide;    Ethanol;    Extraction;    Supercritical Fluid;   

DOI  :  10.1252/jcej.26.247

来源: Maruzen Company Ltd

【 摘 要 】

References(19)Cited-By(6)Fluid-liquid and liquid-liquid equilibria were measured for carbon dioxide-ethanol-water mixtures containing trace amounts of ethyl acetate, acetaldehyde, 2-pentanol, 1-propanol, diacetyl, acetic acid and methanol at temperatures near the critical temperature of carbon dioxide. Large separation factors were observed in the extraction of all the trace components except for acetic acid and methanol from ethanol aqueous solutions using supercritical or liquid carbon dioxide as solvent. The separation factor increased with increasing solvent density.A simple empirical model was developed to correlate the experimental data assuming the infinite dilution state for the trace components. The model correlates the separation factors with fairly good agreement with the experimental data.

【 授权许可】

Unknown