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Détail de l'auteur
Auteur Joo-Youp Lee
Documents disponibles écrits par cet auteur
Affiner la rechercheModeling of mercury oxidation and adsorption by cupric chloride-impregnated carbon sorbents / Sang-Sup Lee in Industrial & engineering chemistry research, Vol. 48 N° 19 (Octobre 2009)
in Industrial & engineering chemistry research > Vol. 48 N° 19 (Octobre 2009) . - pp. 9049–9053
Titre : Modeling of mercury oxidation and adsorption by cupric chloride-impregnated carbon sorbents Type de document : texte imprimé Auteurs : Sang-Sup Lee, Auteur ; Joo-Youp Lee, Auteur ; Soon-Jai Khang, Auteur Année de publication : 2009 Article en page(s) : pp. 9049–9053 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Cupric chloride-impregnated activated carbon sorbents Mercury oxidation Mathematical modeling Résumé : Cupric chloride-impregnated activated carbon sorbents (CuCl2-ACs) showed good performance in Hg0 oxidation and adsorption in previously published entrained-flow test results. In addition, our previous studies indicated that Hg0 is oxidized by CuCl2-ACs and the resultant oxidized mercury is readsorbed onto the sorbents. This study conducted mathematical modeling to interpret these previous results and better understand the Hg0 oxidation and adsorption mechanism of CuCl2-ACs. As a result, the mathematical modeling results confirmed that Hg0 oxidation by CuCl2-ACs is determined by the injection level of CuCl2 impregnated onto the sorbents. An increase in CuCl2 loading in CuCl2-ACs was found to increase Hg0 oxidation but very slightly increased Hg adsorption because an increase in CuCl2 loading decreased the active CuCl2-free carbon sites available for the readsorption of resultant oxidized mercury on the surfaces and inside the pores. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900619v [article] Modeling of mercury oxidation and adsorption by cupric chloride-impregnated carbon sorbents [texte imprimé] / Sang-Sup Lee, Auteur ; Joo-Youp Lee, Auteur ; Soon-Jai Khang, Auteur . - 2009 . - pp. 9049–9053.
Chemical engineering
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 48 N° 19 (Octobre 2009) . - pp. 9049–9053
Mots-clés : Cupric chloride-impregnated activated carbon sorbents Mercury oxidation Mathematical modeling Résumé : Cupric chloride-impregnated activated carbon sorbents (CuCl2-ACs) showed good performance in Hg0 oxidation and adsorption in previously published entrained-flow test results. In addition, our previous studies indicated that Hg0 is oxidized by CuCl2-ACs and the resultant oxidized mercury is readsorbed onto the sorbents. This study conducted mathematical modeling to interpret these previous results and better understand the Hg0 oxidation and adsorption mechanism of CuCl2-ACs. As a result, the mathematical modeling results confirmed that Hg0 oxidation by CuCl2-ACs is determined by the injection level of CuCl2 impregnated onto the sorbents. An increase in CuCl2 loading in CuCl2-ACs was found to increase Hg0 oxidation but very slightly increased Hg adsorption because an increase in CuCl2 loading decreased the active CuCl2-free carbon sites available for the readsorption of resultant oxidized mercury on the surfaces and inside the pores. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900619v
in Industrial & engineering chemistry research > Vol. 48 N° 19 (Octobre 2009) . - pp. 9049–9053
Titre : Modeling of mercury oxidation and adsorption by cupric chloride-impregnated carbon sorbents Type de document : texte imprimé Auteurs : Sang-Sup Lee, Auteur ; Joo-Youp Lee, Auteur ; Soon-Jai Khang, Auteur Année de publication : 2009 Article en page(s) : pp. 9049–9053 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Cupric chloride-impregnated activated carbon sorbents Mercury oxidation Mathematical modeling Résumé : Cupric chloride-impregnated activated carbon sorbents (CuCl2-ACs) showed good performance in Hg0 oxidation and adsorption in previously published entrained-flow test results. In addition, our previous studies indicated that Hg0 is oxidized by CuCl2-ACs and the resultant oxidized mercury is readsorbed onto the sorbents. This study conducted mathematical modeling to interpret these previous results and better understand the Hg0 oxidation and adsorption mechanism of CuCl2-ACs. As a result, the mathematical modeling results confirmed that Hg0 oxidation by CuCl2-ACs is determined by the injection level of CuCl2 impregnated onto the sorbents. An increase in CuCl2 loading in CuCl2-ACs was found to increase Hg0 oxidation but very slightly increased Hg adsorption because an increase in CuCl2 loading decreased the active CuCl2-free carbon sites available for the readsorption of resultant oxidized mercury on the surfaces and inside the pores. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900619v [article] Modeling of mercury oxidation and adsorption by cupric chloride-impregnated carbon sorbents [texte imprimé] / Sang-Sup Lee, Auteur ; Joo-Youp Lee, Auteur ; Soon-Jai Khang, Auteur . - 2009 . - pp. 9049–9053.
Chemical engineering
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 48 N° 19 (Octobre 2009) . - pp. 9049–9053
Mots-clés : Cupric chloride-impregnated activated carbon sorbents Mercury oxidation Mathematical modeling Résumé : Cupric chloride-impregnated activated carbon sorbents (CuCl2-ACs) showed good performance in Hg0 oxidation and adsorption in previously published entrained-flow test results. In addition, our previous studies indicated that Hg0 is oxidized by CuCl2-ACs and the resultant oxidized mercury is readsorbed onto the sorbents. This study conducted mathematical modeling to interpret these previous results and better understand the Hg0 oxidation and adsorption mechanism of CuCl2-ACs. As a result, the mathematical modeling results confirmed that Hg0 oxidation by CuCl2-ACs is determined by the injection level of CuCl2 impregnated onto the sorbents. An increase in CuCl2 loading in CuCl2-ACs was found to increase Hg0 oxidation but very slightly increased Hg adsorption because an increase in CuCl2 loading decreased the active CuCl2-free carbon sites available for the readsorption of resultant oxidized mercury on the surfaces and inside the pores. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900619v
in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 9136-9144
Titre : The effect of surface properties in activated carbon on mercury adsorption Type de document : texte imprimé Auteurs : Liqing Li, Auteur ; Xin Li, Auteur ; Joo-Youp Lee, Auteur Année de publication : 2012 Article en page(s) : pp. 9136-9144 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Adsorption Activated carbon Surface properties Résumé : Physical and chemical properties of raw and modified activated carbon were analyzed to investigate the effects of adsorbate properties on activated carbon adsorption performance. Mercury adsorption was tested by cupric chloride impregnated activated carbon, which used water, acetone, and isopropyl alcohol as solutions. The results indicated that the adsorption capacity of Hg0 in the cupric chloride impregnated activated carbon in isopropyl alcohol was the greatest. Accumulation of Cu on the modified activated carbon surface and other oxygen functional groups was key in affecting the chemisorption of mercury. Two degadation steps were observed in TGA-MS measurements. Decomposition of functional groups containing two oxygen atoms in modified activated carbon took place in the first step, whereas most residual organic groups in activated carbon were primarily decomposed in a second step from 300 to 400 °C, the more organic groups present, the lower the temperature of thermal degradation. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107471 [article] The effect of surface properties in activated carbon on mercury adsorption [texte imprimé] / Liqing Li, Auteur ; Xin Li, Auteur ; Joo-Youp Lee, Auteur . - 2012 . - pp. 9136-9144.
Industrial chemistry
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 9136-9144
Mots-clés : Adsorption Activated carbon Surface properties Résumé : Physical and chemical properties of raw and modified activated carbon were analyzed to investigate the effects of adsorbate properties on activated carbon adsorption performance. Mercury adsorption was tested by cupric chloride impregnated activated carbon, which used water, acetone, and isopropyl alcohol as solutions. The results indicated that the adsorption capacity of Hg0 in the cupric chloride impregnated activated carbon in isopropyl alcohol was the greatest. Accumulation of Cu on the modified activated carbon surface and other oxygen functional groups was key in affecting the chemisorption of mercury. Two degadation steps were observed in TGA-MS measurements. Decomposition of functional groups containing two oxygen atoms in modified activated carbon took place in the first step, whereas most residual organic groups in activated carbon were primarily decomposed in a second step from 300 to 400 °C, the more organic groups present, the lower the temperature of thermal degradation. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107471
