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Received June 8, 2002
Accepted October 1, 2002
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Numerical Analysis of Fixed Bed Adsorption Kinetics Using Orthogonal Collocation
School of Chemical Engineering, Kyungnam University, Masan 631-701, Korea
Korean Journal of Chemical Engineering, November 2002, 19(6), 1001-1006(6), 10.1007/BF02707224
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Abstract
Fixed bed adsorption kinetics is analyzed to test the validity of the simplified model based on the linear driving force approximation by comparison with the exact model by using the orthogonal collocation method. The axial dispersion, the external film diffusion, and the intraparticle diffusion are considered to be the major mass transfer phenomena involved with the fixed bed adsorption kinetics in this study. It is assumed that a local equilibrium is attained at the fluid-solid interface and the equilibrium can be described by the Langmuir isotherm. A homogeneous particle diffusion model is employed to describe the intraparticle diffusion.
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References
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Crank J, "The Mathematics of Diffusion," 2nd Ed., Clarendon Press, Oxford (1975)
Crittenden JC, Weber WJ, J. Environ. Eng.-ASCE, 104, 185 (1978)
Do DD, Mayfield PLJ, AIChE J., 33, 1397 (1987)
Do DD, Rice RG, AIChE J., 32, 149 (1986)
Gluckauf E, Coates JJ, J. Chem. Soc., 1315 (1947)
Hsuen HK, Chem. Eng. Sci., 55(17), 3475 (2000)
Kim SJ, Cho SY, Kim TY, Korean J. Chem. Eng., 19(1), 61 (2002)
Lee DH, Moon H, Korean J. Chem. Eng., 18(2), 247 (2001)
Moon H, Lee JW, Park HC, Korean J. Chem. Eng., 9(4), 225 (1992)
Raghavan NS, Ruthven DM, AIChE J., 29, 922 (1983)
Wehner JF, Wilhelm RH, Chem. Eng. Sci., 6, 89 (1956)
Xiu GH, Li P, Carbon, 38, 975 (2000)
Yun JH, Korean J. Chem. Eng., 17(5), 613 (2000)
