A linearized non-isothermal general rate model for studying thermal effects in liquid chromatographic columns

Author:

Kiran Nadia1,Perveen Sadia2,Bashir Seemab2,Qamar Shamsul3

Affiliation:

1. Department of Mathematics, COMSATS University Islamabad, Pakistan

2. Department of Mathematics, AIR University, Islamabad, Pakistan

3. Department of Mathematics, COMSATS University Islamabad, Pakistan + Max Planck Institute for Dynamics of Complex Technical Systems Magdeburg, Germany

Abstract

A linearized non-isothermal general rate model is formulated and analytically solved to quantify the effects of temperature variations in fixed-bed chromatographic columns. The model contains a set of four coupled PDE accounting for energy transfer resistances, inner and outer particle-pore diffusions, and interfacial mass and axial dispersion. The Laplace transform, the eigenvalue-decomposition technique, and a conventional technique for the solutions of ODE are jointly employed for the solution of the model equations. A few numerical test studies are considered to assess the impact of system parameters on the performance of packed-bed adsorption columns. To access the range of applicability and to get the scope of the appropriateness of calculated analytical results, the numerical results are also obtained by applying a high resolution finite volume scheme. The analytical solutions obtained can be used as an invaluable tool for analyzing, optimizing, and upgrading the non-isothermal liquid chromatographic procedures.

Publisher

National Library of Serbia

Subject

Renewable Energy, Sustainability and the Environment

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