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Isothermes et thermodynamique pour l'adsorption de n-butane dans du charbon actif à base de brai.

Isotherms and thermodynamics for the adsorption of n-butane on pitch based activated carbon.

Auteurs : SAHA B. B., CHAKRABORTY A., KOYAMA S., et al.

Type d'article : Article

Résumé

The adsorption isotherms of n-butane on pitch based activated carbon (type Maxsorb III) at temperatures ranging from 298 to 328 K and at different equilibrium pressures between 20 and 300 kPa have been experimentally measured by a volumetric technique. The porous properties such as, the density, Brunauer-Emmett-Teller surface area, pore size, pore volume along with pore size distribution (PSD) of Maxsorb III have been determined. The Dubinin-Astakhov adsorption isotherm model describes all of the isotherm experimental data within the acceptable error ranges. The present isotherm data are compared with other published data of activated carbon/n-butane and showed the superiority of the present findings in terms of uptake capacity. The isosteric heat of adsorption (DHads) of n-butane on Maxsorb III is calculated for different loading. Using the adsorption isotherms and DHads, the thermodynamic property maps as a function of pressure, temperature and adsorbate amount are also presented. [Reprinted with permission from Elsevier. Copyright, 2007].

Détails

  • Titre original : Isotherms and thermodynamics for the adsorption of n-butane on pitch based activated carbon.
  • Identifiant de la fiche : 2008-2118
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 51 - n. 7-8
  • Date d'édition : 04/2008

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