Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received June 27, 2003
Accepted July 28, 2003

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Adsorption and Desorption Dynamics of Amino Acids in a Nonionic Polymeric Sorbent XAD-16 Column

Woo Chul Yang Wang Geun Shim Jae Wook Lee¹ Hee Moon^†

Faculty of Applied Chemistry, Chonnam National University, Gwangju 500-757, Korea ¹Department of Chemical Engineering, Seonam University, Namwon 590-170, Korea

hmoon@chonnam.ac.kr

Korean Journal of Chemical Engineering, September 2003, 20(5), 922-929(8), 10.1007/BF02697300

Download PDF

Abstract

A separation technique for amino acids, phenylalanine and tryptophan, from aqueous solution was studied in a column that was packed with a polymeric resin, XAD-16. This technique is based on a cyclic operation that has three typical steps such as adsorption, desorption, and washing. In particular, the desorption step for amino acids from the resin was carried out by using organic solvents, isopropyl alcohol and methanol. The desorption mechanism was assumed to be a competitive adsorption between amino acids and solvents, and the ideal adsorbed solution theory (IAST) based on the Langmuir equation as a single component isotherm was used in describing multicomponent equilibria. Adsorption and desorption breakthrough curves of the two amino acids were measured under various experimental conditions such as concentration, flow rate, and column length, in order to check the feasibility of the resin as a medium for the separation of amino acids. It was found that this separation technique could be a promising one for this purpose. Also, a simple dynamic model was formulated to describe both adsorption and desorption breakthrough curves of amino acids.

Keywords

Adsorption Isotherm Amino Acids Column Separation Polymeric Adsorbents Regeneration

References

Carta G, Saunders MS, DeCarli JP, Vierow JB, AIChE Symp. Ser., 84, 54 (1998)
Costa C, Rodrigues AE, AIChE J., 31, 1645 (1985)
Diez S, Leitao A, Ferreira L, Rodrigues A, Sep. Purif. Technol., 13, 25 (1998)
Doulia D, Rigas F, Gimouhopoulos C, J. Chem. Technol. Biotechnol., 76(1), 83 (2001)
Dutta M, Baruah R, Dutta NN, Sep. Purif. Technol., 12, 99 (1997)
Grzegorczyk DS, Carta G, Chem. Eng. Sci., 51(5), 807 (1996)
Kubota LT, Gambero A, Santos AS, Granjeiro JM, J. Colloid Interface Sci., 183(2), 453 (1996)
Lee JW, Park HC, Moon H, Sep. Purif. Technol., 12, 1 (1997)
Lee JW, Jung HJ, Moon H, Korean J. Chem. Eng., 14(4), 277 (1997)
Lee Jw, Moon H, Adsorption, 5, 381 (1999)
Melis S, Markos J, Cao G, Morbidelli M, Ind. Eng. Chem. Res., 35(6), 1912 (1996)
Moitra S, Mundhara GL, Tiwari JS, Colloids Surf., 41, 311 (1998)
Myers AL, Prausnitz JM, AIChE J., 11, 121 (1965)
Park IS, Korean J. Chem. Eng., 19(6), 1001 (2002)
Podlesnyuk VV, Hradil J, Kralova E, React. Funct. Polym., 42(3), 181 (1999)
Ruthven DM, "Principles of Adsorption and Adsorption Processes," John Wiley & Sons, New York (1984)
Villadsen J, Michelsen ML, "Solution of Differential Equation Models by Polynomial Approximation," Prentice-Hall, Englewood Cliffs, NJ (1978)
Wakao N, Chem. Eng. Sci., 33, 1375 (1978)