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Study on the effect of CO2 on the consumption of desulfurizing agent ca(OH)2 in flue gas desulfurization / Wenlong Wang in Industrial & engineering chemistry research, Vol. 49 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1444–1449 Titre : Study on the effect of CO2 on the consumption of desulfurizing agent ca(OH)2 in flue gas desulfurization Type de document : texte imprimé Auteurs : Wenlong Wang, Auteur ; Mingqiang Hu, Auteur ; Yong Dong, Auteur Année de publication : 2010 Article en page(s) : pp. 1444–1449 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Study--Effect--CO2--Consumption--Desulfurizing--Ca(OH)2--Gas  Desulfurization Résumé : In view of the ambiguity concerning the effect of CO2 on the consumption of desulfurizing agent and based on our previous findings when studying flue gas desulfurization (FGD) byproduct, a specific study on the influence of CO2 has been carried out here with Ca(OH)2 being employed as a desulfurizing agent. This study is based on compositional analyses of the reaction products, and combined measurements have provided relatively precise compositions of the reaction products derived from Ca(OH)2 and flue gases. It has been found that the presence of CO2 does have an effect on the desulfurization reaction and on the consumption of desulfurizing agent when Ca(OH)2 is employed as the sorbent for SO2. Also, the formation of CaCO3 is inevitable at about 70 °C and is enhanced under conditions of high humidity. Although over 90% SO2 removal efficiency could be achieved with a relatively high Ca/S mole ratio, the effective utilization of desulfurizing agent would be low because CaCO3 is not the targeted product. Therefore, in order to improve semidry FGD technology, measures must be taken to prevent the reaction between CO2 and Ca(OH)2 so as to increase the utilization ratio of the desulfurizing agent. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901401j [article] Study on the effect of CO2 on the consumption of desulfurizing agent ca(OH)2 in flue gas desulfurization [texte imprimé] / Wenlong Wang, Auteur ; Mingqiang Hu, Auteur ; Yong Dong, Auteur . - 2010 . - pp. 1444–1449. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1444–1449 Mots-clés : Study--Effect--CO2--Consumption--Desulfurizing--Ca(OH)2--Gas  Desulfurization Résumé : In view of the ambiguity concerning the effect of CO2 on the consumption of desulfurizing agent and based on our previous findings when studying flue gas desulfurization (FGD) byproduct, a specific study on the influence of CO2 has been carried out here with Ca(OH)2 being employed as a desulfurizing agent. This study is based on compositional analyses of the reaction products, and combined measurements have provided relatively precise compositions of the reaction products derived from Ca(OH)2 and flue gases. It has been found that the presence of CO2 does have an effect on the desulfurization reaction and on the consumption of desulfurizing agent when Ca(OH)2 is employed as the sorbent for SO2. Also, the formation of CaCO3 is inevitable at about 70 °C and is enhanced under conditions of high humidity. Although over 90% SO2 removal efficiency could be achieved with a relatively high Ca/S mole ratio, the effective utilization of desulfurizing agent would be low because CaCO3 is not the targeted product. Therefore, in order to improve semidry FGD technology, measures must be taken to prevent the reaction between CO2 and Ca(OH)2 so as to increase the utilization ratio of the desulfurizing agent. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901401j