Sulfidation Corrosion Inspections

Sulfidation Corrosion (also known as sulfidic corrosion) is a result of naturally occurring sulfur compounds found in crude oil. In the absence of hydrogen, corrosion due to sulfur compounds in the crude is thought to occur at temperatures above 500°F (260 °C). Up to that temperature, corrosion rates due to sulfidation are relatively low, even for carbon steels, unless there is naphthenic acid present in the crude. High temperature sulfidation is one of the most well-known corrosion mechanisms in the oil refining industry because it can occur in multiple sections of the refinery.

Methods of Sulfidation Corrosion:

  • Guided Wave
  • Pulsed Eddy Current
  • RT (Radiographic Testing) Conventional & Digital
  • PMI Risk Based Inspection
  • EMAT High Temperature Weld Detection
  • Ultrasonic Thickness Testing
  • PMI – Portable X-Ray Fluorescence (XRF) and Optical Emission Spectroscopy (OES)

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