97337 Inhibtion of Vapor Phase Corrosion in Gas Pipetines

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Product Number: 51300-97337-SG

ISBN: 97337 1997 CP

Author: R. L. Martin

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Corrosion in gas pipelines takes many forms. One of these forms is corrosionin vapor space areas, This paper described results of tests designed to better understand this process in sour gas lines and how to inhibit this corrosion. Corrosion in the vapor space above sour fluidswas found to proceed in an unsteady manner. The presence of liquid hydrocarbon lowered rates, whereas oxygen contamination increased rates. Methanol did not increase uninhibited rates but did diminish inhibitor effectiveness. The most effective inhibitors were found to be blends of imidazolines with light amines at particular ratios. Field confirmation of inhibition was demonstrated.

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07663 The Effect of Oxygenated Methanol on Corrosion in Sour Wet Gas Environments

Product Number: 51300-07663-SG

ISBN: 07663 2007 CP

Author: Neil Park, Sherif Maksoud, Lara Morello, and Jennifer E. Wong

Publication Date: 2007

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This paper studies the effect of oxygen in methanol on the structures and growth kinetics of iron sulfide scales. Gravimetric weight analysis was used to evaluate the corrosion mechanisms and rates. Scanning Electron Microscope/ Energy Dispersive X-ray Spectrometry (SEM/EDX), Optical Microscope and X-ray Diffraction (XRD) were used to analyze the scale.