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A Detailed study on the negative effect of residual sodium on the performance of Ni/ZnO adsorbent for diesel fuel desulfurization / Lichun Huang in Industrial & engineering chemistry research, Vol. 49 N° 10 (Mai 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 10 (Mai 2010) . - pp. 4670-4675 Titre : A Detailed study on the negative effect of residual sodium on the performance of Ni/ZnO adsorbent for diesel fuel desulfurization Type de document : texte imprimé Auteurs : Lichun Huang, Auteur ; Zhangfeng Qin, Auteur ; Guofu Wang, Auteur Année de publication : 2010 Article en page(s) : pp. 4670-4675 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Desulfurization  Diesel  fuel Résumé : Desulfurization of diesel fuel was conducted via reactive adsorption over a coprecipitated Ni/ZnO adsorbent. A negative effect of the residual sodium in Ni/ZnO adsorbent on its adsorption performance was observed. The desulfurization ability of Ni/ZnO adsorbent is markedly weakened with the increase in the residual sodium content. This negative effect can be attributed to the fact that the residual sodium decreases the adsorbent surface area and pore volume, suppresses the interaction between Ni and ZnO, and leads to an increase in the crystallite size of the active species. Moreover, the residual sodium is enriched on the adsorbent surface upon calcination and reduction treatment, which may promote the formation of the catalytically inactive Ni-Zn and NaZn(OH)3 species. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=22797458 [article] A Detailed study on the negative effect of residual sodium on the performance of Ni/ZnO adsorbent for diesel fuel desulfurization [texte imprimé] / Lichun Huang, Auteur ; Zhangfeng Qin, Auteur ; Guofu Wang, Auteur . - 2010 . - pp. 4670-4675. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 10 (Mai 2010) . - pp. 4670-4675 Mots-clés : Desulfurization  Diesel  fuel Résumé : Desulfurization of diesel fuel was conducted via reactive adsorption over a coprecipitated Ni/ZnO adsorbent. A negative effect of the residual sodium in Ni/ZnO adsorbent on its adsorption performance was observed. The desulfurization ability of Ni/ZnO adsorbent is markedly weakened with the increase in the residual sodium content. This negative effect can be attributed to the fact that the residual sodium decreases the adsorbent surface area and pore volume, suppresses the interaction between Ni and ZnO, and leads to an increase in the crystallite size of the active species. Moreover, the residual sodium is enriched on the adsorbent surface upon calcination and reduction treatment, which may promote the formation of the catalytically inactive Ni-Zn and NaZn(OH)3 species. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=22797458