Kinetics of fixed-bed adsorption: A new solution

Authors

  • C. H. Liaw,

    1. School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
    Current affiliation:
    1. Chung-Shan Institute of Science and Technology, Taiwan
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  • J. S. P. Wang,

    1. School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
    Current affiliation:
    1. School of Mathematics, Purdue University
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  • R. A. Greenkorn,

    1. School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
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  • K. C. Chao

    Corresponding author
    1. School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
    • School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
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Abstract

A new solution is obtained to the kinetics of a fixed-bed adsorber in response to a step change in feed concentration for a linear equilibrium system with consideration for the resistance to mass transfer in both the mobile and stationary phases. The differential equations of continuity and mass transfer are integrated upon simulating the intraparticle concentrations with a parabola. The results agree with Rosen's rigorous but complex solution in the range of conditions of practical interest. The present solution is more convenient for computer application for the calculation of breakthrough curves.

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