A novel imidazoline derivative as corrosion inhibitor for P110 carbon steel in hydrochloric acid environment

Lei Zhang; Yi He; Yanqiu Zhou; Ranran Yang; Qiangbin Yang; Dayong Qing; Qianhe Niu

doi:10.1016/j.petlm.2015.10.007

Petroleum (Sep 2015)

A novel imidazoline derivative as corrosion inhibitor for P110 carbon steel in hydrochloric acid environment

Lei Zhang,
Yi He,
Yanqiu Zhou,
Ranran Yang,
Qiangbin Yang,
Dayong Qing,
Qianhe Niu

Affiliations

Lei Zhang: State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, 8 Xindu Avenue, Chengdu, Sichuan 610500, China
Yi He: State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, 8 Xindu Avenue, Chengdu, Sichuan 610500, China
Yanqiu Zhou: School of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu, Sichuan 610500, China
Ranran Yang: School of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu, Sichuan 610500, China
Qiangbin Yang: School of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu, Sichuan 610500, China
Dayong Qing: School of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu, Sichuan 610500, China
Qianhe Niu: School of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu, Sichuan 610500, China

DOI: https://doi.org/10.1016/j.petlm.2015.10.007
Journal volume & issue: Vol. 1, no. 3
pp. 237 – 243

Abstract

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A novel imidazoline derivative, 2-methyl-4-phenyl-1-tosyl-4, 5-dihydro-1H-imidazole (IMI), was prepared and investigated as corrosion inhibitor for P110 carbon steel in 1.0 M HCl solution by weight loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests. The inhibition efficiency increased with the rising concentration of IMI inhibitor. The test results and fitting data indicated that the IMI behaved as a mixed-type inhibitor and obeys the Langmuir adsorption isotherm. Scanning electron microscopy (SEM) was carried out to investigate the surface of carbon steel specimens, showing great protection from aggressive solution. Finally, inhibition mechanism of IMI on metal surface was further discussed.

Published in Petroleum

ISSN: 2405-6561 (Print); 2405-5816 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Chemical technology: Oils, fats, and waxes: Petroleum refining. Petroleum products; Technology: Engineering (General). Civil engineering (General): Engineering geology. Rock mechanics. Soil mechanics. Underground construction
Website: https://www.keaipublishing.com/en/journals/petroleum/

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