We examine the protective properties of imidazoline corrosion inhibitors with added thiourea and potassium iodide. A model of reservoir water saturated with carbon dioxide as well as hydrochloric and sulfamic acids were taken as aggressive media. The corrosion inhibition efficiency was evaluated using a gravimetric method under dynamic and static conditions in the carbon dioxide‑rich and acidic environments, respectively. The effect of individual compounds on the inhibition mechanism for metal was determined experimentally in media with different properties.
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This work was supported by the Ministry of Science and Higher Education of the Russian Federation under agreement №075-15-2022-300 dated 18.04.2022 within the framework of the development program for a world-class Research Center «Efficient development of the global liquid hydrocarbon reserves».
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 34–39 November – December 2022
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Silin, M.A., Magadova, L.A., Poteshkina, K.A. et al. Optimization of the Composition of an Imidazoline Corrosion Inhibitor for the Protection of Equipment in Carbon Dioxide-Rich and Acidic Environments. Chem Technol Fuels Oils 58, 952–956 (2023). https://doi.org/10.1007/s10553-023-01474-z
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DOI: https://doi.org/10.1007/s10553-023-01474-z