Corrosion prediction in high-sulfur low-pressure vent pipelines based on wall liquid phase aggregation and droplet erosion

Abstract

To ensure a thorough examination of the high-sulfur natural gas field station vent piping, it is proposed to use numerical simulation and field combination of methods, based on the wall liquid phase aggregation and droplet erosion of high-sulfur natural gas field station low-pressure vent pipeline corrosion simulation prediction technology to carry out a study, analyze the flow field situation and liquid phase deposition in different parts of the vent pipeline, to get the corrosion-prone parts, and compared with the on-site corrosion, the accuracy of 90% is reached. The accuracy reaches 90%. Verify the application of CFD simulation in the pipeline is not easy to detect the corrosion of the parts of the pipeline has a good prediction of corrosion prone to prioritize the corrosion-prone parts of the inspection, to prevent the occurrence of corrosion accidents.

Keywords

• High-sulfur natural gas field station
• Venting pipeline
• Internal corrosion prediction
• Liquid-phase aggregation at the wall
• Droplet erosion