| Erosion-corrosion is a significant concern especially in oilsand slurry transportation in long pipelines from excavation mines to extraction plants and tailing lines. Extensive research has been conducted on slurry flow erosion-corrosion and the influences of various parameters and the mechanism. However difficulties have arisen concerning the impact of flow, its control and mitigation in actual slurry pipelines. This study investigates the impact of erosion, corrosion and its synergistic effect in a simulated pilot scale two phase slurry flow-loop and with rotating cylinder electrode. Electrochemical, weight loss, limiting current measurements and microscopic analysis were completed to separate and identify the erosion-corrosion effect with temperature, flow rate and sand concentration. This study also discusses flow assisted corrosion, synergistic effect mechanism and proposes a unique technique to control the erosion-corrosion in slurry transportation. |
PDF Full Text Request