Bioprocess Engineering

, Volume 8, Issue 5–6, pp 279–282 | Cite as

Ethanol separation by selective adsorption of water

  • S. K. Rakshit
  • P. Ghosh
  • V. S. Bisaria
Originals

Abstract

Preferential adsorption of water in the vapor phase by lignocellulosic residues for the production of anhydrous ethanol has been reported in this work. Rice straw, microcrystalline cellulose powder (MCCP) and bagasse were the lignocellulosic residues used as adsorbents. Starting with an ethanol concentration of 80–90% a final concentration above the azeotropic concentration was obtained. An energy analysis of the process was made and a possible explanation of phenomena suggested.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Ladisch, M. R.; Dyck, K.: Dehydration of ethanol: New approach gives positive energy balance. Science 205 (1979) 898–900Google Scholar
  2. 2.
    U.S. Department of Agriculture: Small scale fuel alcohol production. Washington D.C., p. II–9, March, 1980Google Scholar
  3. 3.
    Lynd, L. R.; Grethlein, H. E.: IHOSR / Extractive distillation for ethanol separation. Chemical Engn. Prog. 80 (1984) 59–62Google Scholar
  4. 4.
    Aldridge, G. A.; Veryklos, X. E.; Mutharasan, R.: Recovery of ethanol from fermentation broths by catalytic conversion to gasolene. 2. Energy analysis. Ind. Engn. Chem. Process. Des. Dev. 23 (1984) 733–737Google Scholar
  5. 5.
    Maiorella, B.; Wilke, C. R.; Blanch, W.: Alcohol production and recovery. Adv. Biochem. Engn. (Fiechter, A., Ed.) 20 (1981) 43–92Google Scholar
  6. 6.
    de Filippi, R. P.; Mosses, J. M.: Extraction of organics from acqueous solutions using critical fluid carbondioxide. Biotech. Bioeng. Symp. 12 (1982) 205–219Google Scholar
  7. 7.
    Brignole, E. A.; Anderson, P. M.; Fredensland, A.: Supercritical fluid extraction of alcohols from water. Ind. Engn. Chem. Res. 26 (1987) 254–261Google Scholar
  8. 8.
    Hartline, F. F.: Lowering the cost of alcohol. Science. 206 (1979) 41–42Google Scholar
  9. 9.
    Fanta, G. F.; Burr, R. C.; Orton, W. L.; Doane, W. M.: Liquid phase dehydration of acqueous-ethanol gasolene mixtures. Science. 210 (1980) 646–647Google Scholar
  10. 10.
    Wilke, C. R.: In: Process development studies for the bioconversion of cellulose and production of ethanol, Lawrence Berkeley Lab., Univ. of California, Berkeley, Ca., LBL 7880, Sept. 1978Google Scholar
  11. 11.
    Parisi, F.: Energy balance for ethanol as a fuel. Adv. Biochem. Engn. (Fiechter, A., Ed.) 28 (1983) 41–68Google Scholar
  12. 12.
    Black, C.: Distillation modelling of ethanol recovery and dehydration processes for ethanol and gasohol. Chem. Engn. Prog. 76 (1980) 78–85Google Scholar
  13. 13.
    Seshadri, C. V.; Shanbag, P. V.: Condensation and boiling of a binary azeotrope in porous boiling surfaces. Chem. Engn. Comm. 1 (1974) 175–180Google Scholar
  14. 14.
    Weust, R.: Handbook of Chemistry and Physics. Chemical Rubber Publishing Co., Cleveland, Ohio, Fifth edition, p. D21, 1971Google Scholar

Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • S. K. Rakshit
    • 1
  • P. Ghosh
    • 2
  • V. S. Bisaria
    • 2
  1. 1.Indian Institute of TechnologyMadrasIndia
  2. 2.Biochemical Engg. Research CentreIndian Institute of TechnologyNew DelhiIndia

Personalised recommendations