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Performance analysis of methionine as an environmentally friendly corrosion inhibitor for carbon steel in the amine based carbon capture process
Highlights Methionine is an effective corrosion inhibitor for amine-based carbon capture processes. Inhibition performance depends on methionine concentration, temperature and velocity. Methionine undergoes spontaneous physical adsorption obeying the Langmuir isotherm.
Abstract The corrosion inhibition performance of an amino acid, namely methionine (MTI) was evaluated for the absorption-based carbon capture process using aqueous monoethanolamine (MEA). Results from electrochemical tests showed MTI considerably reduced corrosion rates of carbon steel 1018 with inhibition efficiencies of up to 83.56% and 74.96% under static and dynamic conditions, respectively. Its inhibition performance increased with MTI concentration and solution temperature, but decreased with rotational speed. Results from weight loss tests confirmed MTI's inhibition effectiveness on carbon steel exposed to all phases including liquid, vapor, and liquid-vapor. MTI functioned as a mixed-type corrosion inhibitor which protected metal surface by undergoing spontaneous and endothermic physical adsorption with the Langmuir adsorption isotherm.
Performance analysis of methionine as an environmentally friendly corrosion inhibitor for carbon steel in the amine based carbon capture process
Highlights Methionine is an effective corrosion inhibitor for amine-based carbon capture processes. Inhibition performance depends on methionine concentration, temperature and velocity. Methionine undergoes spontaneous physical adsorption obeying the Langmuir isotherm.
Abstract The corrosion inhibition performance of an amino acid, namely methionine (MTI) was evaluated for the absorption-based carbon capture process using aqueous monoethanolamine (MEA). Results from electrochemical tests showed MTI considerably reduced corrosion rates of carbon steel 1018 with inhibition efficiencies of up to 83.56% and 74.96% under static and dynamic conditions, respectively. Its inhibition performance increased with MTI concentration and solution temperature, but decreased with rotational speed. Results from weight loss tests confirmed MTI's inhibition effectiveness on carbon steel exposed to all phases including liquid, vapor, and liquid-vapor. MTI functioned as a mixed-type corrosion inhibitor which protected metal surface by undergoing spontaneous and endothermic physical adsorption with the Langmuir adsorption isotherm.
Performance analysis of methionine as an environmentally friendly corrosion inhibitor for carbon steel in the amine based carbon capture process
Udayappan, Balaji (author) / Veawab, Amornvadee (author)
2021-12-21
Article (Journal)
Electronic Resource
English
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