Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Evaluation of the Efficiency of Solvent Systems to Remove Acetic Acid Derived from Pre-pulping Extraction

  • Park, Seong-Jik (Department of Bioresources and Rural System Engineering, Hankyong National University) ;
  • Moon, Joon-Kwan (Department of Plant Life and Environmental Science, Hankyong National University) ;
  • Um, Byung-Hwan (Department of Chemical Engineering and Research Center of Chemical Technology, Hankyong National University)
  • Received : 2013.06.18
  • Accepted : 2013.09.17
  • Published : 2013.09.25
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Abstract

Hemicellulose extract obtained by pre-pulping extraction of woodchips, is very diluted acidic in nature. The major component responsible for this weak acidity is acetic acid, present in levels up to 5~10 g/L. Here, we report an exploratory study on the extract upgrading by reactive solvent extraction of acetic acid as well as ASPEN simulation. In this study, liquid-liquid equilibria for the ternary systems (water + acetic acid + ethyl acetate) were measured at the temperature of 298.15 K and 10 (pH = 2.02), 5 (pH = 2.17), and 1 (pH = 2.48) percent of acetic acid samples were used to carry out liquid-liquid extraction studies using ethyl acetate. In a one-stage batch experiment, 96.0% of acetic acid could be extracted for the solvent when the ratio of organic-to-aqueous phases is 4:1. For simulation results, they were used to estimate the interaction parameters between each of the three compounds of the systems studied for the NRTL and UNIQUAC models. The estimated interaction parameters were successfully used to predict the equilibrium compositions by the two models.

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References

  1. Abrams, D. S. and J. M. Prausnitz. 1975. Statistical thermodynamics of liquid mixtures: A new expression for the excess Gibbs energy of partlyor completely miscible systems. AIChE J 21: 116-128. https://doi.org/10.1002/aic.690210115
  2. Anasthas, H. M. and V. G. Gaikar. 2001. Removal of acetic acid impurities from ethyl acetate by adsorption on ion exchange resins. Sep. Sci. Technol 36: 2623-2646. https://doi.org/10.1081/SS-100107216
  3. Arce, A., A. Blanco, P. Souza, and I. Vidal. 1995. Liquid-liquid equilibria of the ternary mixtures water + propanoic acid + methyl ethyl ketone and water + propanoic acid + methyl propyl ketone. J. Chem. Eng. Data 40: 225-229. https://doi.org/10.1021/je00017a047
  4. Briones, J. A., J. C. Mullins, and M. C. Thies. 1994. Liquid-liquid equilibria for the oleic acida-sististerol-water system at elevated temperatures and pressures. Ind. Eng. Chem. Res 33: 151-156. https://doi.org/10.1021/ie00025a020
  5. Dramur, U. and B. Tatli. 1993. Liquid-liquid equilibria of water + acetic acid+ phthalic esters (dimethyl phthalate and diethyl phthalate) ternaries. J. Chem. Eng. Data 38: 23-25. https://doi.org/10.1021/je00009a006
  6. Marian, G., W. G. Barbara, and M. Andrzej. 2006. Recommended liquid-liquid equilibrium data. J. Phys. Chem 35: 1391-1414.
  7. McCabe, W. L., Smith and J. C. Harriott. 1993. Unit operations of chemical engineering 5th ed.
  8. Renon, H. and J. M. Prausnitz. 1968. Local composition in thermodynamics excess functions for liquid mixtures. AIChE J 14: 135-144. https://doi.org/10.1002/aic.690140124
  9. Ritcey, G. M. and A. W. Ashbrook. 1979. Solvent extraction. Elsevier scientific publishing company.
  10. Smejkal, Q., D. Linke, and M. Baerns. 2005. Energetic and economic evaluation of the production of acetic acid via ethane oxidation. Chem. Eng. Process 44: 421-428. https://doi.org/10.1016/j.cep.2004.06.004
  11. Um, B. H., B. Friedman, and G. P. van Walsum. 2011. Conditioning hardwood-derived pre-pulping extracts for use in fermentation through removal and recovery of acetic acid using trioctyl phosphine oxide (TOPO). Holzforschung 65(1): 51-58.
  12. Wasewar, K. L., A. A. Yawalkar, J. A. Moulijn, and V. G. Pangarkar. 2004. Fermentation of glucose to lactic acid with reactive extraction, a review. Ind. Eng. Chem. Res 43: 5969-5982. https://doi.org/10.1021/ie049963n

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