Stage Efficiencies of Minor Amounts of n-Propyl Alcohol and Iso-Butyl Alcohol in Ethanol Aqueous Solution.

• Hatate Yasuo

  Department of Applied Chemistry and Chemical Engineering, Kagoshima Univ.

• Mitsudome Kenji

  Department of Applied Chemistry and Chemical Engineering, Kagoshima Univ.

• Uemura Yoshimitsu

  Department of Applied Chemistry and Chemical Engineering, Kagoshima Univ.

• Aikoh Ryoko

  Department of Applied Chemistry and Chemical Engineering, Kagoshima Univ.

• Kashiwada Masanori

  Miyazaki Food Processing R&D Center

• Kawano Yoshinobu

  Faculty of Engincering, Miyazaki University

• Ohmori Toshiro

  Sanwa Shurui Co.

• Shimoda Masahiko

  Sanwa Shurui Co.

Bibliographic Information

Other Title

• エタノール水溶液中の微量ｎ‐プロピルアルコール，イソブチルアルコールの段効率
• エタノール スイヨウエキチュウ ノ ビリョウ n プロピルアルコール イソブチ

Abstract

Murphree stage efficiencies of minute components (n-propyl alcohol and iso-butyl alcohol) in ethanol aqueous solution were determined by using a 10-stage Oldershow type rectification column. By employing the azeotropic operation of ethanol-water systems, constant equilibrium ratios of the minute components were realized throughout all stages of the column to obtain the precise values of the Murphree Stage efficiencies. The following results were obtained;<BR>1) Murphree stage efficiencies for both minute components were almost the same and decreased from 0.80 to 0.65 when decreasing the pressure from 101.3 to 12.7 kPa.<BR>2) The same results were obtained for periodic and continuous reflux operations to confirm that the laboratory scale data obtained by periodic reflux would be applicable to industrial scale situations.

Journal

• KAGAKU KOGAKU RONBUNSHU

  KAGAKU KOGAKU RONBUNSHU 23 (2), 143-148, 1997

  The Society of Chemical Engineers, Japan

Keywords

• Murphree Stage Efficiency
• Ethanol Aqueous Solution
• n-Propyl Alcohol
• Iso-Butyl Alcohol
• Reduced Pressure
• Azeotropic Operation

Details

• CRID: 1390001204508964992
• NII Article ID: 10002767139
• NII Book ID: AN00037234
• DOI: 10.1252/kakoronbunshu.23.143
• ISSN: 13499203
• ISSN: 0386216X
• NDL BIB ID: 4161070
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4161070
• Web Site: http://www.jstage.jst.go.jp/article/kakoronbunshu1975/23/2/23_2_143/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed