PARAMETRIC INVESTIGATION OF FIXED-TRAY, SEMI-CONTINUOUS DISTILLATION COLUMN FOR ETHANOL SEPARATION FROM WATER

Authors

  • Nur Atirah Ibrahim Faculty of Chemical & Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Muhammad Abbas Ahmad Zaini Centre of Lipids Engineering & Applied Research (CLEAR), Ibnu-Sina Institute for Scientific & Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia

DOI:

https://doi.org/10.11113/.v78.7448

Keywords:

Fixed-tray column, semi-continuous distillation, ethanol-water mixture, fermentation broth

Abstract

This work was aimed to evaluate the parameters affecting the separation of model fermentation broth (7 mole% ethanol) using 10-tray, semi-continuous distillation column. Ethanol compositions in distillate and bottoms were determined at different reflux ratios and feed locations. Results show that the distillation of lower ethanol concentration is better carried out at higher reflux ratio with feed charged at the middle or bottom tray for good overall tray efficiency. The distillation unit is able to purify the feed to 78 mole% ethanol in distillate. Through trial-and-error stepping off, about 81 mole% was predicted as optimum ethanol purity at reflux ratio of 2.33, while a lower reflux ratio of 1.44 was estimated for 78 mole%.  Fixed-tray, semi-continuous distillation is a suitable option to concentrate fermentation broth with sufficient ethanol purity. 

Author Biographies

  • Nur Atirah Ibrahim, Faculty of Chemical & Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
    MPhil candidate, FKT UTM JB
  • Muhammad Abbas Ahmad Zaini, Centre of Lipids Engineering & Applied Research (CLEAR), Ibnu-Sina Institute for Scientific & Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
    Senior Lecturer, FKT UTM JB

References

Guo, L., Ma, X., Xia, Y., Xiang, X. and Wu X. 2015. A Novel Method Of Production Of Ethanol By Carbon Dioxide With Steam. Fuel Journal. 158: 843-847.

Chandel, A. K., Chan, E. S., Rudravaram, R., Narasu, M. L., Rao, L. V. and Ravindra P. 2007. Economics And Environmental Impact Of Bioethanol Production Technologies: An Appraisal. Biotechnology and Molecular Biology Review. 2(1): 14-32.

Antoni, D., Zverlov, V. V., Schwarz, W. H. 2007. Biofuels From Microbes. Appl Microbiol Biotechnol. 77: 23-35.

Badger, P. C. 2002. Ethanol From Cellulose: A General Review. In: Janick, J. and Whipkey, A. (Eds.). Trends In New Crops And New Uses. ASHS Press, Alexandria, VA.

Ni, M., Leung, D. Y. C. and Leung, M. K. H. 2007. A Review On Reforming Bio-Ethanol For Hydrogen Production. International Journal of Hydrogen Energy. 32: 3238-3247.

Ziolkowska, J. R. 2014. Prospective Technologies, Feedstocks And Market Innovations For Ethanol And Biodiesel Production In The US. Biotechnol Rep. 4: 94-98.

Geankoplis, C. J. 2003. Transport Processes and Separation Process Principle. 4th edition. New Jersey: Prentice Hall.

Mujtaba, I. M. 2004. Batch Distillation: Design and Operation. London: Imperial College Press.

Lucet, M., Charamel, A., Champuis, A., Guido, D. and Loreau, J. 1992. Role Of Batch Processing In The Chemical Process Industry. Proceedings of NATO ASI on Batch Processing Systems Engineering, 1992. Antalya, Turkey. 29 May-7 June 1992.

Hilmen, E. K. 2000. Separation Of Azeotropic Mixtures: Tools For Analysis And Studies On Batch Distillation Operation. PhD thesis. Norwegian University of Science and Technology, Trondheim, Norway.

Narvaez-Garcia, A., Zavala-Loria, J. C., Vilchis-Bravo, L. E., Rocha-Uribe, J. A. 2013. Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux, Journal of Engineeering. 14: 2013-2027.

Kim, K. J. and Diwekar, U. 2006. Chapter 5: Batch Distillation. In Korovessi, E. and Linninger, A. A. (Eds.). Batch Processes. Florida: Taylor & Francis Group.

Sorensen, E. and Skogestad, S. 1996. Comparison of Regular And Inverted Batch Distillation. Chemical Engineering Science. 51: 4949-4962.

Richard, D. N. and Patricia, A. T. 2004. Principles of Chemical Separations with Environmental Applications. Cambridge: Cambridge University Press.

Coelho, T. C., Souza, O., Sellin, N., Medeiros, S. H. W. and Marangoni, C. 2012. Analysis Of The Reflux Ratio On The Batch Distillation Of Bioethanol Obtained From Lignocellulosic Residue. 20th International Congress of Chemical and Process Engineering (CHISA), 2012. Prague, Czech Republic. 25-29 August 2012. 131-139.

Dimian, A. C., Bildea, C. S. and Kiss, A. A. 2014. Integrated Design and Simulation of Chemical Processes. 2nd edition. Netherland: Elsevier.

Downloads

Published

2016-10-31

Issue

Section

Science and Engineering

How to Cite

PARAMETRIC INVESTIGATION OF FIXED-TRAY, SEMI-CONTINUOUS DISTILLATION COLUMN FOR ETHANOL SEPARATION FROM WATER. (2016). Jurnal Teknologi, 78(11). https://doi.org/10.11113/.v78.7448