Li Yongming, Wang Dingli, Zhang Lei
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University Chengdu 610500 Sichuan China
College of Chemistry and Chemical Engineering, Chongqing University Chongqing 400044 China.
RSC Adv. 2019 Aug 23;9(45):26464-26475. doi: 10.1039/c9ra04638k. eCollection 2019 Aug 19.
A new dibenzylamine-quinoline derivative (DEEQ) was synthesized and investigated as a corrosion inhibitor for mild steel in 15% HCl solution in various ways, including weight loss measurements, contact angle measurements, electrochemical measurements (EIS), scanning electron microscopy (SEM), scanning Kelvin probe (SKP) and theoretical calculations. The experimental results revealed that DEEQ is an effective corrosion inhibitor for oil and gas acidification. In an oil-water two-phase system, the wettability of mild steel can be changed by adsorption, while obeying the Langmuir adsorption isotherm. Finally, quantum chemical calculations and molecular dynamic simulation parameters further show a definite correlation between the theoretical and experimental results.
合成了一种新型二苄胺喹啉衍生物（DEEQ），并通过多种方法对其作为低碳钢在15%盐酸溶液中的缓蚀剂进行了研究，包括失重测量、接触角测量、电化学测量（EIS）、扫描电子显微镜（SEM）、扫描开尔文探针（SKP）以及理论计算。实验结果表明，DEEQ是一种有效的油气酸化缓蚀剂。在油水两相体系中，低碳钢的润湿性可通过吸附作用改变，且符合朗缪尔吸附等温线。最后，量子化学计算和分子动力学模拟参数进一步表明理论结果与实验结果之间存在明确的相关性。
