Electrochemical and molecular modelling studies of CO2 corrosion inhibition characteristics of alkanolamine molecules for the protection of 1Cr steel
نویسندگان
چکیده
Effects of alkanolamine molecules on the corrosion inhibition L80–1Cr steel were studied in a CO2-saturated 1 wt% NaCl solution at well downhole temperatures 20 and 80 °C. The electrochemical results showed lower rates °C, for which more influenced by injection. experimental molecular modelling calculations using DFT revealed that adsorption/desorption played determining role kinetics characteristics FeCO3 formation. Additionally, dependency inhibitor efficiency both chemical structures adsorption energy Fe(110), FeCO3(104) Fe3C(001) was demonstrated, resulting highest provided ethanolamine.
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ژورنال
عنوان ژورنال: Corrosion Science
سال: 2022
ISSN: ['1879-0496', '0010-938X']
DOI: https://doi.org/10.1016/j.corsci.2021.109999