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Corrosion in CO2 capture process using blended monoethanolamine and piperazine / Manjula Nainar in Industrial & engineering chemistry research, Vol. 48 N° 20 (Octobre 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 20 (Octobre 2009) . - pp. 9299–9306 Titre : Corrosion in CO2 capture process using blended monoethanolamine and piperazine Type de document : texte imprimé Auteurs : Manjula Nainar, Auteur ; Amornvadee Veawab, Auteur Année de publication : 2010 Article en page(s) : pp. 9299–9306 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Monoethanolamine  Piperazine  Industrial  flue  gas  streams  Corrosion Résumé : This work explores the promise of aqueous solutions of blended monoethanolamine (MEA) and piperazine (PZ) as a cost-effective solvent for carbon dioxide (CO2) capture from industrial flue gas streams with respect to corrosion, which is regarded as one of the most severe operational problems in typical CO2 capture plants. Electrochemical corrosion experiments were carried out using the potentiodynamic polarization technique for corrosion measurements. The results show that the blended MEA/PZ solutions are more corrosive than the MEA solutions. The corrosion rate of carbon steel increases with concentration of PZ, total amine concentration, CO2 loading of solution, solution temperature, and the presence of heat stable salts. Among the tested heat-stable salts, formate is the most corrosive salt, followed by acetate, oxalate, and thiosulfate in the absence of oxygen (O2), while acetate is the most corrosive salt followed by formate, oxalate, and thiosulfate in the presence of O2. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801802a [article] Corrosion in CO2 capture process using blended monoethanolamine and piperazine [texte imprimé] / Manjula Nainar, Auteur ; Amornvadee Veawab, Auteur . - 2010 . - pp. 9299–9306. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 20 (Octobre 2009) . - pp. 9299–9306 Mots-clés : Monoethanolamine  Piperazine  Industrial  flue  gas  streams  Corrosion Résumé : This work explores the promise of aqueous solutions of blended monoethanolamine (MEA) and piperazine (PZ) as a cost-effective solvent for carbon dioxide (CO2) capture from industrial flue gas streams with respect to corrosion, which is regarded as one of the most severe operational problems in typical CO2 capture plants. Electrochemical corrosion experiments were carried out using the potentiodynamic polarization technique for corrosion measurements. The results show that the blended MEA/PZ solutions are more corrosive than the MEA solutions. The corrosion rate of carbon steel increases with concentration of PZ, total amine concentration, CO2 loading of solution, solution temperature, and the presence of heat stable salts. Among the tested heat-stable salts, formate is the most corrosive salt, followed by acetate, oxalate, and thiosulfate in the absence of oxygen (O2), while acetate is the most corrosive salt followed by formate, oxalate, and thiosulfate in the presence of O2. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801802a