Effect of fluid velocity and temperature on the corrosion mechanism of low carbon steel in industrial water in the absence and presence of 2-hydrazino benzothiazole

Aswaidy Mohammed Badiea; Kikkeri Narasimhasetty Mohana

Korean Journal of Chemical Engineering, Vol.25, No.6, 1292-1299, November, 2008

DOI10.1007/s11814-008-0212-1 Export Citation

Effect of fluid velocity and temperature on the corrosion mechanism of low carbon steel in industrial water in the absence and presence of 2-hydrazino benzothiazole

Aswaidy Mohammed Badiea^†, and Kikkeri Narasimhasetty Mohana

Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore-570 006, India

E-mail:

This work was carried out to study the inhibition mechanism of volatile corrosion inhibitors (VCIs) such as 2-hydrazinobenzothiazole (2-HBTA) on the corrosion of low carbon steel in industrial water by using polarization and mass loss measurement. It was found that 2-HBTA revealed good performance as inhibitor for low carbon steel corrosion in industrial water. After some time, the performance decreased due to the volatility of these kinds of inhibitors away from the open system unlike the closed system. The experimental data indicated that the inhibitive performance of 2-HBTA for low carbon steel was improved with increasing of concentration up to the critical concentration (4.24×10^(-3)M). The adsorption behavior of 2-HBTA was found to obey Langmuir’s adsorption isotherm. The thermodynamic parameters of adsorption process and activation energy were obtained from polarization technique. Scanning electron microscopy (SEM) was performed to characterize the film formed on the surface. Box-Wilson statistical method was employed to correlate the results obtained, and the optimization of fluid velocity, temperature and concentration of inhibitor by using Box-Wilson statistical method was evaluated.

Keywords:Metals and Alloys;Surfaces and Interfaces;Corrosion;SEM

[References]

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[1] Cano E, Bastidas DM, Simancas J, Bastidas JM, Corrosion, 61, 5 (2005)

[2] Bastidas JM, Dedamborenea J, Vazquez AJ, J. Appl. Electrochem., 27(3), 345 (1997)

[3] Dedamborenea J, Bastidas JM, Vazquez AJ, Electrochim. Acta, 42(3), 455 (1997)

[4] Horvath, Tibor, Eirka, Kutson, Gyogy, Adam, Magy. Kem. Foly, 98, 363 (1997)

[5] Jallerat N, Port FL, Bourelier F, Qng VK, International Congress on Metallic Corrosion, Toronto, Canada, 4, 404 (1984)

[6] Roberston W, Electrochem J, Soc., 98, 94 (1951)

[7] Bouklah M, Benchat N, Hammouti B, Aouniti A, Kertit S, Mater. Lett., 60, 1901 (2006)

[8] Leng A, Stratmann M, Corros. Sci., 34, 1657 (1993)

[9] Estevao LRM, Nascimento RSV, Corros. Sci., 43, 1133 (2001)

[10] Sastry VS, Corrosion inhibitors, principles and applications, John Wiley & Sons, New York (1998)

[11] Baril G, Blanc C, Keddam M, Pebere N, J. Electrochem. Soc., 151, 488 (2003)

[12] Benali O, Larabi L, Traisnel M, Gengembre L, Harek Y, Appl. Surf. Sci., 253(14), 6130 (2007)

[13] Ateya BG, Abo Elkhai BM, Abdel Hamid IA, Corros. Sci., 16, 163 (1976)

[14] McCabe WL, Julian CS, Hariott P, Unit operations of chemical engineering, 4th ed, McGraw Hill, p. 217, 219 and 690 (1985)

[15] Sinnott RK, Chemical engineering, Vol. 1, 1st ed., Pergamon Press, Oxford (1983)

[16] Bilgic S, Caliskan N, Appl. Sur. Sci., 152, (1999)

[17] Donahue FM, Nobe K, J. Electrochem. Soc., 112, 886 (1965)

[18] Kamis E, Bellucci F, Latanision RM, El-Ashry ESH, Corrosion, 47, 677 (1991)

[19] Bayoumi FM, Ghanem WA, Mater. Lett., 59, 3806 (2005)

[20] Campbell MJM, Grazeskawiak R, Juneja SG, J. Inorg. Nucl. Chem., 36, 2485 (1974)

[21] Montgomery DG, Design and analysis of industrial experiments, 3rd ed., New Delhi (1976)

[22] Box GEP, Wilson KB, J. Royal Statis. Soc., 1, 13 (1951)