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Didecyl dimethyl ammonium chloride as a highly efficient corrosion inhibitor for carbon steel in hydrochloric acid solution

Xiaojing Wei (Key Laboratory of Enhanced Oil Recovery in Carbonate Fractured-vuggy Reservoirs, CNPC, Urumqi, China and SINOPEC Northwest Company of China Petroleum and Chemical Corporation, Urumqi, China)
Jue Wang (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China)
Xin Shi (Key Laboratory of Enhanced Oil Recovery in Carbonate Fractured-vuggy Reservoirs, CNPC, Urumqi, China and SINOPEC Northwest Company of China Petroleum and Chemical Corporation, Urumqi, China)
Feng Zhou (Key Laboratory of Enhanced Oil Recovery in Carbonate Fractured-vuggy Reservoirs, CNPC, Urumqi, China and SINOPEC Northwest Company of China Petroleum and Chemical Corporation, Urumqi, China)
Duolong Gao (Key Laboratory of Enhanced Oil Recovery in Carbonate Fractured-vuggy Reservoirs, CNPC, Urumqi, China and SINOPEC Northwest Company of China Petroleum and Chemical Corporation, Urumqi, China)
Xiaohu Wen (Key Laboratory of Enhanced Oil Recovery in Carbonate Fractured-vuggy Reservoirs, CNPC, Urumqi, China and SINOPEC Northwest Company of China Petroleum and Chemical Corporation, Urumqi, China)
Xiankang Zhong (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 25 October 2021

Issue publication date: 3 January 2022

141

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

Copyright © 2021, Emerald Publishing Limited

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