To read the full version of this content please select one of the options below:

Fluid flow effects on CO2 corrosion: a review of applications of rotating cage methodology

Jhonatan Jair Arismendi Florez (Department of Mining and Petroleum Engineering, Polytechnic School of the University of São Paulo, São Paulo, Brazil)
Jean Vicente Ferrari (Department of Mining and Petroleum Engineering, Polytechnic School of the University of São Paulo, São Paulo, Brazil)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 1 July 2019

Abstract

Purpose

Among the many influencing effects that the medium has on the CO2 corrosion of carbon steel, flow is one of the most important because it can determine the formation of corrosion product scales and its stabilisation, thus influencing the attack morphology and corrosion rate. This paper aims to summarise some factors affecting aqueous CO2 corrosion and the laboratory methodologies to evaluate one of the most important, the flow, with an emphasis on less costly rotating cage (RC) laboratory methodology.

Design/methodology/approach

Regarding the key factors affecting CO2 corrosion, both well-established factors and some not well addressed in current corrosion prediction models are presented. The wall shear stress (WSS) values that can be obtained by laboratory flow simulation methodologies in pipelines and its effects over iron carbonate (FeCO3) scales or inhibition films are discussed. In addition, promising applications of electrochemical techniques coupled to RC methodology under mild or harsh conditions are presented.

Findings

More studies could be addressed that also consider both the salting-out effects and the presence of oxygen in CO2 corrosion. The RC methodology may be appropriate to simulate a WSS close to that obtained by laboratory flow loops, especially when using only water as the corrosive medium.

Originality/value

The WSS generated by the RC methodology might not be able to cause destruction of protective FeCO3 scales or inhibition films. However, this may be an issue even when using methodologies that allow high-magnitude hydrodynamic stresses.

Keywords

Citation

Arismendi Florez, J.J. and Ferrari, J.V. (2019), "Fluid flow effects on CO2 corrosion: a review of applications of rotating cage methodology", Anti-Corrosion Methods and Materials, Vol. 66 No. 4, pp. 507-519. https://doi.org/10.1108/ACMM-08-2018-1986

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited