Abstract
Mass and heat balances describing the process of a nonisothermal one-component adsorption in a fixed bed adsorber are formulated. The mathematical model permits simulation of bed performance under isothermal, adiabatic or nonisothermal-nonadiabatic conditions and incorporates heat and mass transport resistances within and around the adsorbent particle. Both heat and mass axial dispersion in the bed and moderate heat losses to the surroundings are considered. The adsorption equilibrium is described by a temperature-dependent Langmuir isotherm. The mathematical model is solved for different values of the physicochemical parameters. Numerical investigation results for different values of axial heat dispersion coefficient, effective pore diffusivity and overall heat transfer coefficient are compared with real adsorption data available from the literature.
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