How to slow down the corrosion of steel by HCl-H₂S-H₂O system

2026-06-27View Original

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Combining the corrosion mechanism and rate characteristics of this system on steel introduced previously, corrosion can be slowed down through the following targeted methods:: 1. Process operation optimization controls the pH value of the system to be greater than 7, and reducing the H⁺ concentration weakens hydrogen depolarization corrosion. Control the hydrogen sulfide concentration below 50ppm to reduce the generation of sulfide corrosion products. Eliminate residual stress in steel, avoid cold working, strictly control welding residual stress, and reduce the risk of stress corrosion cracking. Control the concentration of harmful ions such as Cl⁻ in the medium to reduce pitting corrosion inducements. 2. Application of high-efficiency corrosion inhibitor water-based RF-401 corrosion inhibitor: adaptation

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How to slow down the corrosion of steel by HCl-H₂S-H₂O system

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