Didecyl dimethyl ammonium chloride as a highly efficient corrosion inhibitor for carbon steel in hydrochloric acid solution
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 25 October 2021
Issue publication date: 3 January 2022
Abstract
Purpose
This paper aims to discover a highly efficient corrosion inhibitor for 45# steel in hydrochloric acid solution and reveal the mechanism of inhibitors.
Design/methodology/approach
In this paper, electrochemical measurements, weight loss measurements, surface characterization and theoretical calculation are used to evaluate the inhibition performance and reveal the mechanism of inhibitors.
Findings
Results show that didecyl dimethyl ammonium chloride (DDAC), especially in combination with dodecane phenol plyoxyethylene, could provide a good protection performance for the carbon steel in hydrochloric acid. The N atoms and long alkyl chains in DDAC molecular structure play the vital role.
Originality/value
Usually, DDAC is used as the compound chemical disinfectant in oilfield sterilization, medicine and health. However, to the best of the authors’ knowledge, no study has shown that it can mitigate the corrosion of carbon steels in HCl solution.
Keywords
Acknowledgements
This work supported by Sinopec key research and development project [grant number 320065] and Scientific and Technological Innovation Team for the Safety of Petroleum Tubular Goods in Southwest Petroleum University [grant number 2018CXTD01].
Citation
Wei, X., Wang, J., Shi, X., Zhou, F., Gao, D., Wen, X. and Zhong, X. (2022), "Didecyl dimethyl ammonium chloride as a highly efficient corrosion inhibitor for carbon steel in hydrochloric acid solution", Anti-Corrosion Methods and Materials, Vol. 69 No. 1, pp. 55-62. https://doi.org/10.1108/ACMM-06-2021-2503
Publisher
:Emerald Publishing Limited
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