DOI: 10.1615/ICHMT.2008.CHT
ISBN Print: 978-1-56700-253-9
ISSN: 2578-5486
MODELING THE BREAKTHROUGH PERFORMANCE OF N-BUTANE ADSORPTION ON CARBON-COATED CERAMIC MONOLITHS
ABSTRACT
The new shaped structured materials, carbon monoliths, are characterized by straight parallel channels separated by thin wall, high void fraction and large geometric surface area, resulting in a low pressure drop under high flow rate and large contact area. These properties make carbon monoliths have the advantage on adsorption application. This study simulates the dynamic adsorption of n-butane on carbon-coated ceramic monoliths under isothermal condition. The parameters considered in the mathematical model include the mass transfer coefficient to the channel wall, effective diffusion within the pore structure and the axial dispersion model. The adsorption is expressed by the Dubinin-Radushkevich isotherm. The model analyzes the effect of variables such as flow rate, size of monolith channel, interstitial velocity, length of monolith, carbon-coated wall thickness, etc. to find its breakthrough performance.