External Corrosion of the bottom plate of Petroleum and Derivative Storage tanks on Compacted Soils

( Vol-5,Issue-12,December 2018 ) OPEN ACCESS

Mauro Muniz de Castro, Fernando B. Mainier, Miguel Luiz Ribeiro Ferreira


corrosion, oil storage tank, compacted soil, cathodic protection, laboratory experiment.


Inspections carried out on petroleum and derivative storage tanks on compacted soils have shown external corrosion on the bottom plates of the tanks despite cathodic protection by an impressed current. The holes or cavities in the outer plates of the bottom of the tank (in contact with the soil) result in oil leakage, thereby having significant environmental impacts. The objective of this paper is to show, in laboratory experiments, that cathodic protection is not reliable when there are voids or spaces between the plates and the soil. In addition, it proposes the application of a thermal spray with aluminium in the parts of the bottom plates that are in contact with the soil to protect these plates from localised corrosion. It is important to note that the welding temperature was 320°C, without affecting the aluminium coating applied by the thermal spray.

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[1] Barros, S. M. (2006) Tanques de Armazenamento (Storage tank). Rio de Janeiro, Brazil: Petrobras, In Portuguese.
[2] Eckert, H. (2004). Inspections, warnings, and compliance: the case of petroleum storage regulation. Journal of Environmental Economics and Management, 47(2), 232-259.
[3] Chang, J. I., & Lin, C. C. (2006). A study of storage tank accidents. Journal of Loss Prevention in the Process Industries, 19(1), 51-59.
[4] American Petroleum Institute, API (2014). API 651: 2014, Cathodic Protection of Aboveground Petroleum Storage Tank. Washington, USA.
[5] Revie, R. W. (2008) Corrosion and corrosion control: an introduction to corrosion science and engineering. 4 ed. Hoboken: John Wiley & Sons.
[6] Aliofkhazraei, M. (2016). Handbook of Practical Cathodic Corrosion Protection. Springer.
[7] Adey, R. A. (Ed.). (2005). Modelling of Cathodic Protection Systems (Vol. 12). WIT press.
[8] Amos, D. M. (1996). Magnetic flux leakage as applied to aboveground storage tank flat bottom tank floor inspections. Materials Evaluation, 54(1).
[9] Shi, Y., Zhang, C., Li, R., Cai, M., & Jia, G. (2015). Theory and application of magnetic flux leakage pipeline detection. Sensors, 15(12), 31036-31055.
[10] ASTM A283M-18, Standard Specification for Low and Intermediate Tensile Strength Carbon Steel Plates, ASTM International, West Conshohocken, PA, 2018.
[11] Gentil, V. (2016). Corrosão (Corrosion). Rio de Janeiro, Brazil: LTC, In Portuguese.
[12] Mainier, F. B., Nunes, L. D. P., Gomes, L. P., & da Rocha, A. C. M. (2014). A Non-polluting Option Using Cathodic Protection for Hydrostatic Testing of Petroleum Tanks with Seawater. American Journal of Materials Science, 4(5), 190-193.
[13] PETROBRAS N-2568 (2011) Revestimentos Metálicos por Aspersão Térmica (Metallic Coatings by Thermal Spray), Rio de Janeiro, Brazil: Petrobras, In Portuguese.