Solution corrosivity of MDEA/water solutions containing added HCl or NaCl have been measured by weight loss coupons at 250°F and by linear polarization resistance (LPR) at 208°F using carbon steel, 304SS, 316SS and 410SS. General corrosion as well as pitting or crevice corrosion tendencies were recorded for each species. Based on these results, recommendations are made for chlorides in MDEA that minimizes corrosion in gas treating operations.

Subject
Corrosion rate, Steel coupons, Sodium chloride, Weight loss coupons, Vapors, Liquids, Sodium chloride solution, Pitting, Carbon steel, Stainless steel, Chlorides, Electrodes, Types of corrosion
Keywords:
methyldiethanolamine, MDEA, corrosion, chlorides, linear polarization resistance, LPR, gas treating
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1997
Association for Materials Protection and Performance (AMPP)
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