General Information
    • ISSN: 2010-0221
    • Frequency: Bimonthly
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Dr. Eldin W. C. Lim
    • Executive Editor: Mr. Ron C. Wu
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Editor-in-chief
Dr. Eldin W. C. Lim
Dept. of Chemical and Biomolecular Engineering,
National University of Singapore, Singapore
IJCEA 2012 Vol.3(2): 141-146 ISSN: 2010-0221
DOI: 10.7763/IJCEA.2012.V3.175

Modeling and Optimization of Recovery Process of Glycolic Acid using Reactive Extraction

Dipaloy Datta and Sushil Kumar

Abstract—The equilibrium reactive extraction of glycolic acid (GA) from aqueous solution is studied using tri-n-octylamine (TOA) as extractant dissolved in organic solvents (cyclohexane and 1-decanol). Experimental studies are designed using central composite orthogonal design method to investigate the main and interaction effects of initial GA concentration in the aqueous phase (Cin, mol/L), initial TOA composition in the organic phase (CTOA,o, %v/v) and modifier composition (M, %v/v) on the degree of extraction (Y). The process design parameters are optimized based on Y and using bio-inspired optimization algorithm, called differential evolution (DE). A quadratic response surface model is satisfactorily described with R2 of 0.98. The optimum conditions using DE are obtained as Cin = 0.24 mol/L, CTOA,o = 16.1 (%v/v), and M = 80.38 (%v/v). At this optimum conditions, a Y of 73.18% can be obtained from the model. Experimental verification gives a Y of 69.25% with a model error of 5.7%. This indicates high reliability of the model.

Index Terms—Reactive extraction, glycolic acid, modeling, optimization

The authors are with the Chemical Engineering Department, Birla Institute of Technology & Science (BITS) PILANI, Pilani, Rajasthan 333031, INDIA (e-mail: dipaloy@gmail.com; sushilk2006@gmail.com).

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Cite: Dipaloy Datta and Sushil Kumar, "Modeling and Optimization of Recovery Process of Glycolic Acid using Reactive Extraction," International Journal of Chemical Engineering and Applications vol. 3, no. 2, pp. 141-146, 2012.

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