An Investigation of Electrochemical Noise Analytical Methods in the Study of Carbon Steel Corrosion Behavior in Diethanolamine

Document Type : Research Paper

Authors

1 School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Iran

2 Sarkhoon and Qeshm Gas Treating Company

Abstract

Electrochemical noise measurement is considered by many researchers as one of the most well-known methods for studying corrosion mechanism due to its broad capabilities. Various analytical methods have been applied to use this technique, while in some cases; some discrepancies have been being detected in their obtained results. To further investigate these differences, various techniques consisting of localized index, wavelet transform and the slope of PSD were utilized to study corrosion behavior of carbon steel in diethanolamine aqueous solution containing different concentrations of absorbed H2S and CO2 gases. It was found that the localized index and wavelet analytical techniques were in a good agreement, while the slope of PSD changes did not indicate a logical trend. By making a comparison between the polarization test results and the noise resistance results, it could be deduced that although the trend of noise and polarization changes were quite similar, but the absolute values of corrosion rates were not equal.

Keywords

Main Subjects

References

[1]. Polasek J. and Bullin J., “Selecting amines for sweetening units”, Energy Progress, Vol. 4, pp. 146-149, 1984.##
[2]. Raeissi K. and Golzar M. A., “Passivation behavior of carbon steel in hydrogensulfide-containing diethanolamine and diglycolamine solutions”, Corrosion, Vol. 65, pp. 595-600, 2009.##
[3]. Kakaei M., Neshati J., Hoseiny H. and Poursaberi T., “An A non-equilibrium approach to study the corrosion behavior of carbon steel in diethanolamine–H2O–CO2 systems”, Corro. Sci., Vol. 104, pp. 132-143, 2016.##
[4]. Qi Y., Luo H., Zheng Sh. , Chen Ch., Lv Zh. and Xiong M., “Effect of Temperature on the Corrosion Behavior of Carbon Steel in Hydrogen Sulphide Environments”, Int. J. Electrochem. Sci., Vol. 9, pp. 2101-2112, 2014.##
[5]. Sun W., Nesic S. and Papavinasam S., “Kinetics of iron sulfide and mixed iron sulfide/carbonate scale precipitation in CO2/H2S corrosion”, Corrosion Nacexpo, 06644, 2006.##
Nesic S., Li H., Huang J. and Sormaz D., “An Open Source Mechanistic Model for CO2/H2S Corrosion of Carbon Steel”, Corrosion, Atlanta, Georgia, NACE 09572, 2009.##
[6]. Sun J., Sun C., Sun Ch., Zhang G., Li X., Zhao W., Jiang T., Liu H., Cheng X. and Wang Y. “Effect of O2 and H2S impurities on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system”, Corro. Sci., Vol. 107, pp. 31-40, 2016.##
[7]. Hu X., Barker,R., Neville A. and Gnanavelu A., “Case study on erosion–corrosion degradation of pipework located on an offshore oil and gas facility”, Wear, Vol. 271, pp. 1295– 1301, 2011.##
[8]. Garcia Arriaga V., Alvarez Ramirez J., Amaya M.and Sosa E., “H2S and O2 influence on the corrosion of carbon steel immersed in a solution containing 3 M diethanolamine”, Corro. Sci., Vol. 52, pp. 2268–2279, 2010.##
[9]. Zhang N., Dezhi Z. and Guoqing X., “Effect of Cl− accumulation on corrosion behavior of steels in H2S/CO2 methyldiethanolamine (MDEA) gas sweetening aqueous solution”, J. Natural Gas. Sci. & Eng., Vol. 30, pp. 444-454, 2016.##
[10]. Iverson W. P., “Transient voltage changes produced in corroding metals and alloys”, J. Electrochem. Soc., Vol. 115, pp. 617-618, 1968.##
[11]. Loto C., “Electrochemical noise measurement technique in corrosion research”, Int. J. Electrochem. Sci., Vol. 7, pp. 9248 – 9270, 2012.##
[12]. Skoog A., West M. and Holler F., “Analytical chemistry”, Suanders College Pub., 7th Edition, 1995.##
[13]. Tan Y., Bailey S. and Kinsella B., “The monitoring of the formation and destruction of corrosion inhibitor films using electrochemical noise analysis (ENA)”, Corro. Sci., Vol. 38, pp. 1681-1695, 1996.##
[14]. Yang Y., Zhang T., Shao Y., Meng G. and Wang F., “Effect of hydrostatic pressure on the corrosion behaviour of Ni–Cr–Mo–V high strength steel”, Corro. Sci., Vol. 52, pp. 2697-2706, 2010.##
[15]. Liu, X., Zhang T., Shao Y., Meng G. and Wang F., “In-situ study of the formation process of stannate conversion coatings on AZ91D magnesium alloy using electrochemical noise”, Corro. Sci., Vol. 52, pp. 892-900, 2010.##
[16]. Anita, T., Pujar M. G., Shaikh H., Dayal R. K. and Khatak H. S., “Assessment of stress corrosion crack initiation and propagation in AISI type 316 stainless steel by electrochemical noise technique”, Corrosion science, Vol. 48, pp. 2689-2710, 2006.
[17]. Smulko J., Darowicki K. and Zielinski A., “Pitting corrosion in steel and electrochemical noise intensity”, J. Electrochemistry Communications, Vol. 4, pp. 388-391, 2002.
[18]. Aballe A., Bethencourt M., Botana F. J. and Marcos M., “Using wavelets transform in the analysis of electrochemical noise data,” J. Electrochimica Acta, Vol. 44, pp. 4805-4816, 1999.
[19]. Rios E. C., Zimer A. M., Pereira E. C. and Mascaro L. H., “Analysis of AISI 1020 steel corrosion in seawater by coupling electrochemical noise and optical microscopy”, Electrochimica Acta, Vol. 124, pp. 211–217, 2014.
[20]. Kim J. J., “Electrochemical noise analysis of localized corrosion by wavelet transform”, Met. Mater. Int., Vol. 16, pp. 747–753, 2010.
[21]. Homborga A. M., Tingab T. and Zhangc X., “Time–frequency methods for trend removal in electrochemical noise data”, Electrochimica Acta, Vol. 70, pp. 199–209, 2012.
 
Journal of Petroleum Research
Volume 27, 96-3 - Serial Number 94
September and October 2017
Pages 4-19

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