Carbon steel corrosion behaviour in aqueous carbonated solution of MEA/bmim DCA

Barham, Hamah Ali and Ali, Brahim Si and Yusoff, Rozita and Aroua, Mohamed Kheireddine (2011) Carbon steel corrosion behaviour in aqueous carbonated solution of MEA/bmim DCA. International Journal of Electrochemical Science, 6 (1). pp. 181-198. ISSN 1452-3981,

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Carbon steel corrosion rates were measured in carbonated solution mixtures of monoethanolamine (MEA) and 1-Butyl-3-methylimidazolium dicyandiamide (bmim DCA) and MEA without bmim DCA, using polarization curve and electrochemical impedance spectroscopy (EIS). Corrosion tests were carried out for 4.0 M carbonated MEA and bmim DCA concentration varied from 0.1 to 1.0 M. The CO 2 loading was 0.55 mol/mol and temperature was varied from 40 to 80 °C. Results showed adding bmim DCA decreased the corrosion rate of carbon steel for 4.0 M MEA/bmim DCA system. However, the effect of bmim DCA addition was less as the temperature increased to 80 °C. Scanning Electron Microscope (SEM) and Energy dispersive X-ray analysis (EDX) were also carried out to characterize the surface morphology and corrosion product formed on the electrode surface. The SEM and EDX spectrum showed that a protective corrosion layer has formed on the electrode surface for 4.0 M MEA/bmim DCA system. The corrosion rate of carbon steel was also measured using EIS at 40 °C and 4.0 M MEA/1.0 M bmim DCA with different exposure times. It was found the corrosion rate increased at first, but decreased progressively with time. The results got from EIS agree well with the polarization curve, SEM and EDX.

Item Type: Article
Additional Information: Cited By (since 1996):5 Export Date: 21 April 2013 Source: Scopus Language of Original Document: English Correspondence Address: Barham, H.A.; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: References: Zhang, X., Wang, F., He, Y., Du, Y., (2001) Corr. Sci., 43, pp. 1417-1431; Dugsted, A., Lunde, L., Nesic, S., (1994) Gulf Publishing Co; Nesic, S., Pots, B.F.M., Postlethwaite, J., Thevenot, N., (1996) Corr. Sci. Eng., 1, pp. paper 3; Kohl, A.L., Nielson, R.B., (1997) Gas Purification, , 5th ed.; Gulf Publication Co. Houston, TX; Benamor, A., Aroua, M.K., (2005) Fluid Phs. Eq., 231, pp. 150-162; Guo, X.P., Tomoe, Y., (1999) Corros. Sci., 41, pp. 1391-1402; Farelas, F., Ramirez, A., (2010) Int. J. Electrochem. Sci., 5, pp. 797-814; Zhang, Q.B., Hua, Y.X., (2009) Electrochim. Acta, 54, pp. 1881-1887; Natalya, V.L., Marco, A.D., Octavio Olivares-Xometl, Noel Nava-Entzana, Elsa Arce, Hector Dorantes (2010) Corros. Sci., 52, pp. 2088-2097; Allan, N.S., Bonifacio, T.D., Hui. Meng (2009) J. Chem. Therm., 41, pp. 525-529; Wu, S.L., Cui, Z.D., Zhao, G.X., Yan, M.L., Zhu, S.L., Yang, X.J., (2004) App. Sur. Sci., 228, pp. 17-25; Farelas, F., Galicia, M., Brown, B., Nesic, S., Castaneda, H., (2010) Corros. Sci., 52, pp. 509-517; Okafor, P.C., Liu, X., Zheng, Y.G., (2009) Corros. Sci., 51, pp. 761-768; Ma�in-Cruz, J., Cabrera-Sierra, R., Pech-Canul, M.A., Gonźalez, I., (2006) Electrochim. Acta, 51, pp. 1847-1854; Ali, B.S., (2005), PhD Thesis. University of MalayaLópez, D.A., Simison, S.N., De Sánchez, S.R., (2003) Electrochim. Acta, 48, pp. 845-854; Zhang, Q.B., Hua, Y.X., (2009) Electrochim. Acta, 54, pp. 1881-1887; (1999), ASTM Standard G5-94 (Reapproved 1999), ASTM: Philadelphia, PAUR -
Uncontrolled Keywords: carbon steel; co(2) corrosion; mea; ionic liquid; eis; dioxide corrosion; co2 corrosion; inhibition; eis; imidazoline; mdea.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 16 Jul 2013 03:31
Last Modified: 20 Jan 2021 07:35

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