A pyrimidine derivative as a high efficiency inhibitor for the corrosion of carbon steel in oilfield produced water under supercritical CO2 conditions

被引：75
|
作者：
Hou, B. S. [1 ]
Zhang, Q. H. [1 ]
Li, Y. Y. [1 ]
Zhu, G. Y. [1 ]
Liu, H. F. [1 ,2 ]
Zhang, G. A. [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Key Lab Mat Chem Energy Convers & Storage, Hubei Key Lab Mat Chem & Serv Failure, Minist Educ,Sch Chem & Chem Engn, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 410074, Peoples R China
来源：
CORROSION SCIENCE | 2020年 / 164卷
基金：
中国国家自然科学基金;
关键词：
Carbon steel; Polarisation; EIS; Acid inhibition; INTRINSIC ELECTROCHEMICAL NATURE; MONTE-CARLO-SIMULATION; MILD-STEEL; XPS; MECHANISM; COPPER; 2-MERCAPTOBENZOTHIAZOLE; INDUCTANCE; EMISSIONS; ENERGIES;
D O I：
10.1016/j.corsci.2019.108334
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A pyrimidine derivative, 4,6-diamino-2-(benzylthio)pyrimidine (DABTP), was developed as an inhibitor for the corrosion of N80 carbon steel in supercritical CO2 containing oilfield produced water under static and dynamic conditions. Its inhibition effect and mechanism were investigated by electrochemical tests, quantum chemical calculations, and molecular dynamics simulations. DABTP exhibits high inhibition efficiency, with a decrease under dynamic conditions. A network structure of the adsorbed DABTP molecules may be formed by hydrogen bonds, which enhances the adsorption stability of DABTP. The adsorbed DABTP molecules may desorb from the steel surface due to the dragging action of flowing H2O molecules through hydrogen bonding.
引用
收藏
页数：18
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