氧化剂
腐蚀
Pourbaix图
水溶液
化学
胺气处理
无机化学
厌氧腐蚀
极化(电化学)
氢铵
离子
电化学
物理化学
有机化学
电极
作者
Amornvadee Veawab,Adisorn Aroonwilas
标识
DOI:10.1016/s0010-938x(01)00125-1
摘要
The purpose of this paper was to perform studies in order to obtain a better understanding of corrosion in an aqueous amine–CO2 environment. A mechanistic corrosion model, built as a fortran-90 program, is established to identify the oxidizing agents responsible for corrosion reactions. The model incorporates the rigorous electrolyte nonrandom two-liquid (NRTL) equilibrium model and mixed potential theory in order to simulate the concentrations of chemical species and polarization behavior taking place at a metal–solution interface. The simulation results, based on monoethanolamine (MEA) system, indicates that bicarbonate ion (HCO3−) and water (H2O) are the primary oxidizing agents and hydrogen ion (H+) or hydronium ion (H3O+) plays an insignificant role in the reduction reaction.
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