Affinity and packing of benzene, toluene, and p - xylene adsorption on a graphitic surface and in pores / Nikom Klomkliang in Industrial & engineering chemistry research, Vol. 51 N° 14 (Avril 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 14 (Avril 2012) . - pp. 5320–5329 Titre : Affinity and packing of benzene, toluene, and p - xylene adsorption on a graphitic surface and in pores Type de document : texte imprimé Auteurs : Nikom Klomkliang, Auteur ; D. D. Do, Auteur ; D. Nicholson, Auteur Année de publication : 2012 Article en page(s) : pp. 5320–5329 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Adsorption benzene Toluene Résumé : A grand canonical Monte Carlo simulation has been carried out at ambient temperature to investigate the adsorption of benzene, toluene, and p-xylene (BTX) on a graphite surface and in a graphitic slit and cylindrical pores. Particular emphasis has been paid to the effects of the confined space on the affinity and packing density. Simulation results for adsorption on a graphite surface were tested against the experimental data to validate the potential models used in the description of adsorption. Our extensive simulation has shown that on an open graphite surface, where there is no restriction in the packing, p-xylene has the highest affinity and adsorbed amount at a given reduced pressure and benzene has the lowest values, due to the additional interaction of the methyl groups with the surface. In a confined space, the order of the affinity remains the same, but the packing (hence the amount adsorbed per unit physical pore volume) is affected by the geometry of the space. It was found that benzene has the highest packing density, whether it is expressed in terms of moles or mass. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300121p [article] Affinity and packing of benzene, toluene, and p - xylene adsorption on a graphitic surface and in pores [texte imprimé] / Nikom Klomkliang, Auteur ; D. D. Do, Auteur ; D. Nicholson, Auteur . - 2012 . - pp. 5320–5329. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 14 (Avril 2012) . - pp. 5320–5329 Mots-clés : Adsorption benzene Toluene Résumé : A grand canonical Monte Carlo simulation has been carried out at ambient temperature to investigate the adsorption of benzene, toluene, and p-xylene (BTX) on a graphite surface and in a graphitic slit and cylindrical pores. Particular emphasis has been paid to the effects of the confined space on the affinity and packing density. Simulation results for adsorption on a graphite surface were tested against the experimental data to validate the potential models used in the description of adsorption. Our extensive simulation has shown that on an open graphite surface, where there is no restriction in the packing, p-xylene has the highest affinity and adsorbed amount at a given reduced pressure and benzene has the lowest values, due to the additional interaction of the methyl groups with the surface. In a confined space, the order of the affinity remains the same, but the packing (hence the amount adsorbed per unit physical pore volume) is affected by the geometry of the space. It was found that benzene has the highest packing density, whether it is expressed in terms of moles or mass. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300121p

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