采用电位阶跃技术研究在H2S和CO2共存的近中性溶液中套管钢/溶液界面和反应过程.应用数学模型分析界面反应中氢吸附过程、负离子脱附过程和氢吸收过程的变化规律.当阶跃电位为50 mV,界面反应由氢吸附过程控制,当阶跃电位超过50 mV,界面反应由负离子脱附过程控制.研究显示,在含50％ H2S(pH=5.9)环境中,加入CO2提高了界面负离子脱附、氢吸附和氢吸收反应速率.
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