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Electrochemical behavior of serratia marcescens ACE2 on carbon steel API 5L-X60 in organic/aqueous phase / Aruliah Rajasekar in Industrial & engineering chemistry research, Vol. 47 N°18 (Septembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6925–6932 Titre : Electrochemical behavior of serratia marcescens ACE2 on carbon steel API 5L-X60 in organic/aqueous phase Type de document : texte imprimé Auteurs : Aruliah Rajasekar, Auteur ; Sundaram Maruthamuthu, Auteur ; Yen-Peng Ting, Auteur Année de publication : 2008 Article en page(s) : p. 6925–6932 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Carbon  steel  API  5L-X60  Diesel-water  systems  Serratia  marcescens  ACE2  Electrochemical  impedance  spectroscopy Résumé : The present study reports on the role of the bacterium Serratia marcescens ACE2 in the corrosion behavior of carbon steel API 5L-X60 in diesel−water systems. The effect of commercial corrosion inhibitor (CI) on the growth of strain ACE2 and its corrosion inhibition efficiency was investigated. The corrosion rate was evaluated using electrochemical impedance spectroscopy (EIS) and polarization techniques in the diesel−water interface systems. The amine and carboxylic acid based inhibitor gave better efficiency in the absence of strain ACE2 by suppression of both anodic and cathodic reactions. In the presence of the strain ACE2, the inhibitor suppressed the cathodic reaction more significantly than the anodic reaction. The electrochemical behavior of steel API 5L-X60 was correlated with the role of the adsorbed amine based compound and degraded product on the metal surface. The surface morphology of the coupons in the presence/absence of the inhibitor with ACE2 was observed by using atomic force microscopy (AFM) and revealed pitting corrosion. This basic study is useful for the development of new approaches for the detection, monitoring, and control of microbial corrosion in a petroleum product pipeline. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8005935 [article] Electrochemical behavior of serratia marcescens ACE2 on carbon steel API 5L-X60 in organic/aqueous phase [texte imprimé] / Aruliah Rajasekar, Auteur ; Sundaram Maruthamuthu, Auteur ; Yen-Peng Ting, Auteur . - 2008 . - p. 6925–6932. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6925–6932 Mots-clés : Carbon  steel  API  5L-X60  Diesel-water  systems  Serratia  marcescens  ACE2  Electrochemical  impedance  spectroscopy Résumé : The present study reports on the role of the bacterium Serratia marcescens ACE2 in the corrosion behavior of carbon steel API 5L-X60 in diesel−water systems. The effect of commercial corrosion inhibitor (CI) on the growth of strain ACE2 and its corrosion inhibition efficiency was investigated. The corrosion rate was evaluated using electrochemical impedance spectroscopy (EIS) and polarization techniques in the diesel−water interface systems. The amine and carboxylic acid based inhibitor gave better efficiency in the absence of strain ACE2 by suppression of both anodic and cathodic reactions. In the presence of the strain ACE2, the inhibitor suppressed the cathodic reaction more significantly than the anodic reaction. The electrochemical behavior of steel API 5L-X60 was correlated with the role of the adsorbed amine based compound and degraded product on the metal surface. The surface morphology of the coupons in the presence/absence of the inhibitor with ACE2 was observed by using atomic force microscopy (AFM) and revealed pitting corrosion. This basic study is useful for the development of new approaches for the detection, monitoring, and control of microbial corrosion in a petroleum product pipeline. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8005935

Microbial corrosion in petroleum product transporting pipelines / Sundaram Maruthamuthu in Industrial & engineering chemistry research, Vol. 50 N° 13 (Juillet 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 8006-8015 Titre : Microbial corrosion in petroleum product transporting pipelines Type de document : texte imprimé Auteurs : Sundaram Maruthamuthu, Auteur ; Baskaran Dinesh Kumar, Auteur ; Shanmugavel Ramachandran, Auteur Année de publication : 2011 Article en page(s) : pp. 8006-8015 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Petroleum  product  Corrosion Résumé : Petroleum product pipelines in India contain large numbers of various types of microorganisms that either directly or indirectly enhance corrosion. Field studies have been carried out by CSIR-CECRI to investigate the corrosion problem in petroleum product transporting pipelines in South India. Although Unicor J inhibitor was added in the pipeline to control corrosion, corrosion products were detected in the pipeline. The present study reveals that the degradation of the inhibitor enhances the proliferation of bacteria, which enhances the corrosion. The selection of an inhibitor to control corrosion has also been done. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332125 [article] Microbial corrosion in petroleum product transporting pipelines [texte imprimé] / Sundaram Maruthamuthu, Auteur ; Baskaran Dinesh Kumar, Auteur ; Shanmugavel Ramachandran, Auteur . - 2011 . - pp. 8006-8015. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 8006-8015 Mots-clés : Petroleum  product  Corrosion Résumé : Petroleum product pipelines in India contain large numbers of various types of microorganisms that either directly or indirectly enhance corrosion. Field studies have been carried out by CSIR-CECRI to investigate the corrosion problem in petroleum product transporting pipelines in South India. Although Unicor J inhibitor was added in the pipeline to control corrosion, corrosion products were detected in the pipeline. The present study reveals that the degradation of the inhibitor enhances the proliferation of bacteria, which enhances the corrosion. The selection of an inhibitor to control corrosion has also been done. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332125