Study The Corrosion Behavior of Carbon Steel in Presence Of CO2 Gas in Oil Pipe Lines

Abstract

The current work is the study of corrosion behaveiorof carbon steel, in naturally aerated (3.5%wt NaCl)solution. A rotating cylinder electrode (RCE) system wasused to produce conditions of turbulent flow, polarizationexperiments were conducted at various temperature andvarious rotating speed at each temperature.Similarexperiments were carried out using CO2 gas at (32 ml/sec)flow rate.Corresponding experiments by weight loss werecarried out in (3.5%wt NaCl) solution with Kerosene +10% V salt solution and Gas oil + 10% V salt solution at328k and (0, 400) r.p.m .Similar experiments were carriedout in kerosene + 10% V salt solution at (298, 308 and318)K and rotating speed (0) r.p.m at eachtemperature.Other experiments were carried out in purekerosene at temperature (298 and 318)K and speed (0)r.p.m. All experiments were carried out with and with outCO2 gas .The results indicate that the corrosion rate ofcarbon steel is increasing70% with CO2 gas