CORROSIVITY IN 2-AMINO-2-METHYL-l-PROPANOL(AMP)-CO2 SYSTEM |
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Authors: | A. Veawab P. Tontiwachwuthikul S.D. Bhole |
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Affiliation: | a Process Systems Laboratory,b Metallurgy and Materials Laboratory, Industrial Systems Engineering, Faculty of Engineering, University of Regina, Regina, Saskatchewan, Canada |
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Abstract: | Weight loss tests were performed to investigate the corrosivity of a new absorbent, 2-amino-2-methyl-l-propanol (AMP) saturated with pure CO2 and Mixture of CO2 and air on carbon steel under boiling conditions. The corrosion data were compared with those of a conventional amine, monoethanolamine (MEA), tested under the same conditions. The results indicated that corrosion rates in the AMP system were generally lower than those in the M EA system, probably due to differences in characteristics of the corrosion products in each of the absorbents. Corrosivity in the AMP system tended to stabilize when the amine concentration reached 5 kmol/m3 while corrosion rates in the MEA system were directly proportional to amine concentrations. Furthermore, it was observed that a small amount of O2 seemed to expedite severe corrosion |
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Keywords: | Corrosion Carbon dioxide 2-amino-2-methyl-l-propanol Monoethanolamine Weight loss test |
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