Corrosion and Protection Studies of N80 Steel in CO₂ Solution

Abstract:

Corrosion inhibitor I₉₆₀₂ was synthesized in the laboratory. Infrared spectrum (IR) and ultraviolet spectrum (UV) in conjunction with nuclear magnetic resonance (NMR) had been performed to characterize its structure. Corrosion behavior of N80 steel and inhibition property of I₉₆₀₂ in pH=2 solution including 3% NaCl with carbon dioxide saturated were studied. The results showed that, the corrosion of N80 steel in this solution was quite serious, its corrosion rate was 43.02mm/a. The inhibitor synthesized I₉₆₀₂ was mainly composed of amide and imidazoline. When its concentration in above solution was 150mg/l, the inhibition efficiency of I₉₆₀₂ was 90%, and it had good inhibition effect. Using inhibitor was an economical protective measure.

• Periodical: Advanced Materials Research (Volumes 299-300)
• Pages: 34-37
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.299-300.34
• Online since: July 2011
• Authors: Xian Qiu Huang, Jia Shen Zheng, Rui He, Jian Rong Liu, Hui Ping Bai, Yuan Qiang Tu
• Keywords: Carbon Dioxide CO₂, Corrosion, Inhibition, Inhibitor, N80 Steel

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