Experimental and theoretical research on a new corrosion inhibitor for effective oil and gas acidification

被引：18

作者：

Li, Yongming ^{[1
]}

Wang, Dingli ^{[1
]}

Zhang, Lei ^{[2
]}

机构：

[1] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China

[2] Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China

来源：

RSC ADVANCES | 2019年 / 9卷 / 45期

基金：

中国国家自然科学基金;

关键词：

M HCL SOLUTION; MILD-STEEL; CARBON-STEEL; DERIVATIVES; CHLORIDE;

D O I：

10.1039/c9ra04638k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 via 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.

引用

页码：26464 / 26475

页数：12

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