A STUDY OF MASS-TRANSFER IN THE EXTRACTION OF IMPURITIES FROM ETHANOL AQUEOUS SOLUTION BY CARBON DIOXIDE AS A SOLVENT

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概要

• 論文の詳細を見る

• Trace amounts of acetaldehyde, ethyl acetate, isoamyl alcohol, n-propanol and methyl ethyl ketone were effectively extracted and removed from the ethanol aqueous solution by carbon dioxide as solvent with countercurrent contractors. The experiments were carried out at 298.2 K and 7.0 MPa or 303.2 K and 7.5 MPa with solvent-to-feed ratios from 1.3 to 5.0 mol/mol. The concentration of feed ethanol aqueous solution was 20 mol%. Packed columns with 6 mm Raschig rings were employed as contractors.Although a certain amount of ethanol was dissolved into the solvent simultaneously with the trace components, the dissolved ethanol was easily recovered by scrubbing the solvent with a small amount of water. Assuming the state of infinite dilution for each component, a simple calculational procedure was devised to determine the height per mass-transfer unit for some components in packed columns from the experimental data.

• 社団法人 化学工学会の論文
• 1994-02-20

著者

• Takatsuka Toru

  Chiyoda Corp.

• HIROHAMA Seiya

  Chiyoda Corp.

• MIYAMOTO Sinji

  Idemitu petrochemical Co.

• MUTO Tsunehisa

  Idemitu petrochemical Co.

• HIROHAMA Seiya

  Chiyoda Corp

関連論文

• MEASUREMENT AND CORRELATION OF PHASE EQUILIBRIA FOR THE CARBON DIOXIDE-ETHANOL-WATER SYSTEM
• PHASE EQUILIBRIA FOR THE CARBON DIOXIDE-ETHANOL-WATER SYSTEM WITH TRACE AMOUNTS OF ORGANIC COMPONENTS
• A STUDY OF MASS-TRANSFER IN THE EXTRACTION OF IMPURITIES FROM ETHANOL AQUEOUS SOLUTION BY CARBON DIOXIDE AS A SOLVENT
• MEASUREMENT AND CORRELATION OF THE ACTIVITY COEFFICIENTS OF H^+ AND HSO_3^- IN CONCENTRATED AQUEOUS SOLUTIONS OF NaCl
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