Análisis de la falla del techo flotante de un tanque de almacenamiento de gasolina.

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Bibliographic Details
Title:	Análisis de la falla del techo flotante de un tanque de almacenamiento de gasolina.
Alternate Title:	Analysis of the failure of the floating roof of a gasoline storage tank.
Authors:	Rivera Beltrán, Yichsy¹ yichsy@ceinpet.cupet.cu, Fernández García, Briseida¹, Davis Harriett, Juan¹, Llovet de Armas, Nelson F.¹, Cueli Corugedo, Alexander¹, López Guerra, Silio¹
Source:	Revista CENIC Ciencias Quimicas. ene-jun2021, Vol. 53 Issue 1, p1-9. 9p.
Subjects:	NATURAL gas storage tanks, ROOF failures, PETROLEUM refineries, ALUMINUM alloy deterioration, ELECTROLYTIC corrosion, OXYGEN saturation, CORROSION resistance, HUMIDITY control
Abstract (English):	In this work, the cause of the failure in the floating roof of a tank that stores gasoline in an oil refinery was determined. By visual inspection, the high deterioration of the aluminum plates that make up the membrane was observed and a solid scattered on them was perceived. The structural study of the alloy was carried out using Electric Arc Emission Spectrometry and Metallography. The corrosion products were characterized by Xray diffractometry. The material matched 3003 aluminum alloy and no structural deficiencies were found that would sensitize the material to corrosion. On the surface exposed to humidity and oxygen, localized attack was evidenced. The cause of the failure was galvanic corrosion, due to differences in oxygen concentration between the covered areas of the solid and the free areas of the same. [ABSTRACT FROM AUTHOR]
Abstract (Spanish):	En el presente trabajo se determinó la causa de la falla en el techo flotante de un tanque que almacena gasolina en una refinería de petróleo. Mediante la inspección visual se observó el elevado deterioro de las planchas de aluminio que conforman la membrana y se percibió un sólido esparcido sobre las mismas. El estudio estructural de la aleación se realizó mediante la Espectrometría de Emisión por Arco Eléctrico y Metalografía. Los productos de corrosión se caracterizaron por Difractometría de rayos-X. El material se correspondió con la aleación de aluminio 3003 y no se encontraron deficiencias estructurales que sensibilizaran el material a la corrosión. En la superficie expuesta a la humedad y al oxígeno se evidenció el ataque localizado. La causa de la falla fue la corrosión galvánica, debido a diferencias de concentración de oxígeno entre las zonas cubiertas del sólido y las zonas libres del mismo. [ABSTRACT FROM AUTHOR]
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Database:	MedicLatina

Description
Abstract:	In this work, the cause of the failure in the floating roof of a tank that stores gasoline in an oil refinery was determined. By visual inspection, the high deterioration of the aluminum plates that make up the membrane was observed and a solid scattered on them was perceived. The structural study of the alloy was carried out using Electric Arc Emission Spectrometry and Metallography. The corrosion products were characterized by Xray diffractometry. The material matched 3003 aluminum alloy and no structural deficiencies were found that would sensitize the material to corrosion. On the surface exposed to humidity and oxygen, localized attack was evidenced. The cause of the failure was galvanic corrosion, due to differences in oxygen concentration between the covered areas of the solid and the free areas of the same. [ABSTRACT FROM AUTHOR]
ISSN:	10158553