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The inhibition effects of a new heterocyclic bisquaternary ammonium salt in simulated oilfield water

Huang Jin‐ying (Department of Chemistry, Huazhong University of Science and Technology, Wuhan, People's Republic of China)
Zheng Jia‐shen (Department of Chemistry, Huazhong University of Science and Technology, Wuhan, People's Republic of China)
Fu Chao‐yang (Department of Chemistry, Huazhong University of Science and Technology, Wuhan, People's Republic of China)
Qu Jun‐e (Department of Chemistry, Huazhong University of Science and Technology, Wuhan, People's Republic of China)
Liu Jian‐guo (Department of Chemistry, Huazhong University of Science and Technology, Wuhan, People's Republic of China)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 1 August 2004

Abstract

A kind of novel heterocyclic bisquaternary ammonium salt (MBQA) was successfully synthesised with metronidazole as matrix and dichloroethyl ether as the link agent. Weight loss measurement, potentiodynamic polarisation curves, electrochemical impedance spectroscopy and atomic force microscopy were used to evaluate the corrosion inhibiting performance of MBQA in simulated oilfield water. Experimental data revealed that MBQA acted as an inhibitor in the acidic environment and, furthermore, the compound was a mixed‐type inhibitor. It was found that inhibition efficiency increased with an increase in MBQA concentration at different temperatures. The process of inhibition was attributed to the formation of an adsorbed film on the metal surface, which protected the metal against corrosive agents.

Keywords

Citation

Jin‐ying, H., Jia‐shen, Z., Chao‐yang, F., Jun‐e, Q. and Jian‐guo, L. (2004), "The inhibition effects of a new heterocyclic bisquaternary ammonium salt in simulated oilfield water", Anti-Corrosion Methods and Materials, Vol. 51 No. 4, pp. 272-276. https://doi.org/10.1108/00035590410541346

Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited