期刊文献+

暂态技术研究高含H_2S和CO_2近中性溶液中套管钢的界面反应

Electrochemical Transient Technique of Processes Occurring in Tubular Steel-Neutral Solution Interface in H_2S and CO_2 Containing Environment
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摘要 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50mV,界面反应由氢吸附过程控制,当阶跃电位超过50mV,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。 Electrochemical transient technique was used to study the processes in tubular steel solution interface in the neutral solution containing H2 S and CO2. The processes consisted of anion desorption, hydrogen adsorption and hydrogen absorption were analysized using steel-solution interface models. The process in the metal solution interface was controlled by hydrogen adsorption at the potential step of --50 mV, however, by anion desorption at the potential step higher than --50 mV in the solution containing H2S and CO2. The results show that adding CO2 increased anion desorption rate, and enhanced hydrogen adsorbing and absorbing in high H2 S containing solution.
出处 《腐蚀与防护》 CAS 北大核心 2013年第1期18-21,共4页 Corrosion & Protection
基金 重庆自然科学基金(cstc2012jjA50022) 重庆校内科研基金(CK2010B25 CK2011Z05)
关键词 套管钢 H2S CO2 电位阶跃 脱附 氢吸附 氢吸收 tubular steel hydrogen sulfide carbon dioxide potential step anion desorption hydrogen adsorption hydrogen absorption
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