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Experimental investigation on the kinetics of NO complex absorption through FeIIEDTA solvent in a double-stirred reactor / Qian Du in Industrial & engineering chemistry research, Vol. 50 N° 8 (Avril 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 8 (Avril 2011) . - pp. 4425–4431 Titre : Experimental investigation on the kinetics of NO complex absorption through FeIIEDTA solvent in a double-stirred reactor Type de document : texte imprimé Auteurs : Qian Du, Auteur ; Haoyang Zhao, Auteur ; Leiling Ming, Auteur Année de publication : 2011 Article en page(s) : pp. 4425–4431 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Kinetics Résumé : NO emission is a significant source of pollutant from coal combustion. With the establishment of industry flue gas emission standards, removal of NO has been attracting attention and research globally. In this paper, the denitration process through the use of a FeII complex solvent has been studied based on the approach of the wet desulfurization method. The kinetic parameters of the chemical reaction for NO absorption by FeII complex have also been deduced to provide theoretical consideration for the feasibility of this process. It is demonstrated that FeIIEDTA adsorbs NO efficiently under the conditions investigated, achieving the maximum NO reduction efficiency at a neutral pH value at 50 °C. The inlet O2 content in flue gas is a crucial factor affecting the performance of FeII complex, the increment in which leads to the oxidation of FeII into FeIII and hence reduces the absorption capability of the sorbent. The coexistence of SO2 and NO in flue gas decreases the NO removal efficiency by being preferentially adsorbed by the sorbent. However, with the increasing content of SO2 in flue gas, the solvent’s capability in absorbing NO is recovered to its original level. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie102501h [article] Experimental investigation on the kinetics of NO complex absorption through FeIIEDTA solvent in a double-stirred reactor [texte imprimé] / Qian Du, Auteur ; Haoyang Zhao, Auteur ; Leiling Ming, Auteur . - 2011 . - pp. 4425–4431. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 8 (Avril 2011) . - pp. 4425–4431 Mots-clés : Kinetics Résumé : NO emission is a significant source of pollutant from coal combustion. With the establishment of industry flue gas emission standards, removal of NO has been attracting attention and research globally. In this paper, the denitration process through the use of a FeII complex solvent has been studied based on the approach of the wet desulfurization method. The kinetic parameters of the chemical reaction for NO absorption by FeII complex have also been deduced to provide theoretical consideration for the feasibility of this process. It is demonstrated that FeIIEDTA adsorbs NO efficiently under the conditions investigated, achieving the maximum NO reduction efficiency at a neutral pH value at 50 °C. The inlet O2 content in flue gas is a crucial factor affecting the performance of FeII complex, the increment in which leads to the oxidation of FeII into FeIII and hence reduces the absorption capability of the sorbent. The coexistence of SO2 and NO in flue gas decreases the NO removal efficiency by being preferentially adsorbed by the sorbent. However, with the increasing content of SO2 in flue gas, the solvent’s capability in absorbing NO is recovered to its original level. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie102501h