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How Corrosion Impacts Operations and How to Mitigate the Effects
Posted on November 13th, 2017 by Matt Weber in Chemical Manufacturing Excellence
Corrosion on the surface of a metal occurs at first as the result of an unwanted or unintended chemical reaction. The deterioration then continues from there, often with metal loss and cracks or crevices developing. The difficulty that many engineers face is figuring out how to stop the corrosion before it starts, which is not easy when dealing with, for instance, a highly acidic feedstock or other substance that by its nature is likely to cause corrosion.
The challenge, then, comes during the material selection and design process. The engineer must consider all the available materials, along with their strengths and their limitations. They also must take into consideration things like codes and standards, welding procedures and quality control. Furthermore, they must try and see into the future to consider changing conditions, the effects of time and how the inevitable repairs might be handled.
There is no doubt that this is a tall order, but an engineer needn’t know all this information by heart. The point is that they need to be able to access it, preferably quickly and easily. A technical knowledge database like Knovel can be of immense value in cases like these, providing a wide range of engineering insights, including information specific to the issue of corrosion and how it affects different materials under different circumstances.
In the white paper “Material selection guidelines to help prevent corrosion in oil and gas production,” veteran oil and gas industry engineer Peter Nutty details a number of processes where corrosion-related problems impact operations, suggests mitigation tactics and provides interesting case studies.
He also offers some helpful advice on how to do effective research during the material selection process to find the best solutions.
All opinions shared in this post are the author’s own.
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