Investigation on corrosion control of mild steel buried in soil by spent FCC catalyst coating

Palak A. Trivedi; Nikunj M. Solanki; Naresh Butani; Parimal A. Parikh

Journal of Industrial and Engineering Chemistry, Vol.20, No.4, 2264-2271, July, 2014

DOI10.1016/j.jiec.2013.10.001 Export Citation

Investigation on corrosion control of mild steel buried in soil by spent FCC catalyst coating

Palak A. Trivedi, Nikunj M. Solanki¹, Naresh Butani¹, and Parimal A. Parikh^†

Chemical Engineering Department, S.V. National Institute of Technology, Surat 395007, India
¹Department of Biotechnology, Bhagwan Mahavir College of M.Sc. Biotechnology, Surat 395007, India

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Effects of aerobic and anaerobic bacteria on corrosion behaviour of mild steel coated with modified spent FCC catalyst have been examined in soil extract solutions (SES) and that buried in soil. Coating of modified spent FCC catalyst was found to inhibit the growth of bacterial isolates from the soil which is represented as zone of inhibition. Efficacy of spent FCC catalyst was studied for the coated coupons immersed in SES. Cracks and interstices were found on uncoated coupons due to corrosion whereas coated surface remained unaffected. This is confirmed by the SEM analysis. It was also seen that coated coupon was undamaged under buried-in-soil conditions for 30 days.

Keywords:Spent FCC catalyst;Microbially induced corrosion;Antibacterial activity;Sulphate reducing bacteria

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[3] Contreras A, Hernandez SL, Orozco-Cruz R, Galvan-Martinez R, Mater. Des., 35, 281 (2012)

[4] Zhang C, Wen F, Cao Y, Proc. Environ. Sci., 10, 1177 (2011)

[5] Beech BI, Sunner J, Curr. Opin. Biotechnol., 15, 181 (2004)

[6] Ornek D, Jayaraman A, Wood TK, Sun Z, Hsu CH, Mansfeld F, Corrosion Sci., 43, 2121 (2001)

[7] Xu J, Sun C, Yan M, Wang F, Int. J. Electrochem. Sci., 7, 11281 (2012)

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[12] Chen G, Beving DE, Bedi RS, Yan YS, Walker SL, Langmuir, 25(3), 1620 (2009)

[13] Trivedi PA, Parmar PR, Parikh PA, J. Ind. Eng. Chem., in press (2013)

[14] Marafi M, Stanislaus A, J. Hazard. Mater., 101(2), 123 (2003)

[15] American Petroleum Institute Recommended Practice 28, first ed., 1959.

[16] http://www.antimicrobialresistance.dk/data/images/campylobacter1_pdf.pdf

[17] Li S, Kim Y, Jeon K, Kho Y, Metall. Mater., 6, 281 (2000)

[18] Liu ZY, Li XG, Du CW, Lu L, Zhang YR, Cheng YF, Corrosion Sci., 51, 895 (2009)