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51316-7476-Corrosion of Construction Steel in Monoethanolamine for CO2 Separation

Product Number: 51316-7476-SG
ISBN: 7476 2016 CP
Author: Shawn Wilson
Publication Date: 2016
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The motivation for the work was to investigate the possibility of using low alloyed steel as the construction material in the adsorber in a CO2 separation plant for flue gas from a gas fired power plant. In this work the corrosion rate of ST 52 (ASTM A572 ) steel in monoethanolamine (MEA) solution was studied. The corrosion testing was mainly performed on a rotating disc electrode and electrochemical impedance was used to estimate the corrosion rate. The parameters studied were rotation rate influence of oxygen and degradation of the MEA. The results shows a significant increase in the corrosion rate when oxygen was introduced to the system especially when the rotation rate was high. The corrosion also increased when the MEA solution was degraded.
The motivation for the work was to investigate the possibility of using low alloyed steel as the construction material in the adsorber in a CO2 separation plant for flue gas from a gas fired power plant. In this work the corrosion rate of ST 52 (ASTM A572 ) steel in monoethanolamine (MEA) solution was studied. The corrosion testing was mainly performed on a rotating disc electrode and electrochemical impedance was used to estimate the corrosion rate. The parameters studied were rotation rate influence of oxygen and degradation of the MEA. The results shows a significant increase in the corrosion rate when oxygen was introduced to the system especially when the rotation rate was high. The corrosion also increased when the MEA solution was degraded.
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