(439b) Modeling Pitting Corrosion in Petroleum Storage Tank
AIChE Annual Meeting
Wednesday, November 16, 2022 - 8:20am to 8:40am
In this work a finite element analysis model of corrosion in a petroleum storage tank made of steel is developed to simulate the pitting corrosion using COMSOL MultiphysicsÂ®. Generally accepted reaction mechanisms along with transport and thermodynamic data obtained from literature are used. Kinetic data extracted from experimental polarization measurements by performing non-linear regression are integrated into the model. The concentration profiles, current density and electrical potential are calculated at different times. The calculated results are used to study the impacts of various parameters, such as time, corrosive species and their concentrations, conductivity of water adjacent to the surface on pit morphology and corrosion rate.