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Maderas. Ciencia y tecnología

versión On-line ISSN 0718-221X

Resumen

PETRISSANS, Anélie; OUARTASSI, Bajil; ZOULALIAN, André  y  PETRISSANS, Mathieu. OF TRANSIENT MASS TRANSFER OF A GASEOUS COMPONENT IN AN ISOTHERMAL POROUS ADSORBENT. Maderas, Cienc. tecnol. [online]. 2010, vol.12, n.2, pp.115-125. ISSN 0718-221X.  http://dx.doi.org/10.4067/S0718-221X2010000200006.

The present study is avoided to a better understanding of the complexity of the adsorption process of a gaseous constituent on a porous solid (wood) with the purpose to improve the modeling. During the sorption on the porous solid, the diffusion mass transfer of the gaseous substance A occurs simultaneously in gaseous and adsorbed phases. The mass balance equations are written for the simultaneous diffusion transfers. The thermodynamic equilibrium between the phases is also represented. Four different models have been compared. Numerical results have been compared with experimental data and show that the hypothesis of equilibrium conditions between the gaseous and the adsorbed phases is not always verified.

Palabras clave : Adsorption; diffusion; mass transfer; modeling; porous solid; wood.

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