Oxygen induced corrosion is one of the main causes of corrosion today. Oxygen has limited solubility in water, around 8 ppm for normal waters and temperatures but it is a very powerful oxidizer. The solubility of oxygen in oil is roughly 10 times as high as its solubility in water, an important factor to consider in oxygen removal from oil-water systems.
- Localized corrosion caused by oxygen occurs most often at phase boundaries like oil/water and water/air interfaces; and will affect the film-forming properties of corrosion inhibitors.
Product Category
- Un Catalysed
- Catalysed
- Scale Inhibited
Applications
- The most common type of oxygen scavenger used in oil and gas production facilities is the sulfite ion, which is supplied as ammonium bisulfite, sodium sulfite, sodium bisulfite or sulfur dioxide.
- These sulfite scavengers react via a Free-radical-chain mechanism and thus are aided by the presence of a metal catalyst as an initiation step.
- Also, sodium hydrosulfate and hydrazine are used in limited applications.
