Carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1-n-butyl-3-methylimidazolium tetrafluoroborate
Recently, aqueous mixtures of alkanolamines and ionic liquids had emerged as potential solvents for CO2 capture. Solubility data of CO2 in aqueous mixtures of monoethanolamine (MEA) and 1-n-butyl-3-methylimidazolium tetrafluoroborate (bmim BF4) are already available in the literature. However, data...
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| Format: | Article |
| Language: | English |
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Electrochemical Science Group
2012
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| Online Access: | http://eprints.um.edu.my/5753/1/Carbon_Steel_Corrosion_Behaviors_in_Carbonated_Aqueous_Mixtures_of_Monoethanolamine_and_1-n-butyl-3-methylimidazolium_Tetrafluoroborate.pdf |
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| author | Ali, Brahim Si Ali, B.H. Yusoff, Rozita Aroua, M.K. |
| author_facet | Ali, Brahim Si Ali, B.H. Yusoff, Rozita Aroua, M.K. |
| author_sort | Ali, Brahim Si |
| collection | UM |
| description | Recently, aqueous mixtures of alkanolamines and ionic liquids had emerged as potential solvents for CO2 capture. Solubility data of CO2 in aqueous mixtures of monoethanolamine (MEA) and 1-n-butyl-3-methylimidazolium tetrafluoroborate (bmim BF4) are already available in the literature. However, data on the corrosiveness of these new solvents with regards to carbon steel are still scarce. In this work, carbon steel corrosion behavior in carbonated aqueous mixtures of MEA and bmim BF4 was investigated using potentiodynamic polarization and weight loss methods at fixed CO2 loading of 0.55 mol/mol. The corrosion rates were measured for bmim BF4 concentration ranging from 0.1 to 1.0 M and at temperatures of 40 and 80 degrees C. Carbon steel corrosion rates obtained from the two methods are in agreement; and showed that the presence of bmim BF4 in the carbonated solution has reduced the solution corrosivity to carbon steel for carbonated 4.0 M MEA/bmim BF4 system, but increased that of carbonated 2.0 M MEA/bmimBF4 system. Scanning electron microscopy (SEM) images demonstrated that immersed specimens were severely corroded in carbonated 2.0 M MEA/bmim BF4 system. While for carbonated 4.0 M MEA/bmim BF4 system, a protective surface layer was formed as bmim BF4 concentration and temperature increased, respectively. |
| first_indexed | 2024-03-06T05:15:09Z |
| format | Article |
| id | um.eprints-5753 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:15:09Z |
| publishDate | 2012 |
| publisher | Electrochemical Science Group |
| record_format | dspace |
| spelling | um.eprints-57532021-01-20T07:30:46Z http://eprints.um.edu.my/5753/ Carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1-n-butyl-3-methylimidazolium tetrafluoroborate Ali, Brahim Si Ali, B.H. Yusoff, Rozita Aroua, M.K. TA Engineering (General). Civil engineering (General) Recently, aqueous mixtures of alkanolamines and ionic liquids had emerged as potential solvents for CO2 capture. Solubility data of CO2 in aqueous mixtures of monoethanolamine (MEA) and 1-n-butyl-3-methylimidazolium tetrafluoroborate (bmim BF4) are already available in the literature. However, data on the corrosiveness of these new solvents with regards to carbon steel are still scarce. In this work, carbon steel corrosion behavior in carbonated aqueous mixtures of MEA and bmim BF4 was investigated using potentiodynamic polarization and weight loss methods at fixed CO2 loading of 0.55 mol/mol. The corrosion rates were measured for bmim BF4 concentration ranging from 0.1 to 1.0 M and at temperatures of 40 and 80 degrees C. Carbon steel corrosion rates obtained from the two methods are in agreement; and showed that the presence of bmim BF4 in the carbonated solution has reduced the solution corrosivity to carbon steel for carbonated 4.0 M MEA/bmim BF4 system, but increased that of carbonated 2.0 M MEA/bmimBF4 system. Scanning electron microscopy (SEM) images demonstrated that immersed specimens were severely corroded in carbonated 2.0 M MEA/bmim BF4 system. While for carbonated 4.0 M MEA/bmim BF4 system, a protective surface layer was formed as bmim BF4 concentration and temperature increased, respectively. Electrochemical Science Group 2012 Article PeerReviewed application/pdf en http://eprints.um.edu.my/5753/1/Carbon_Steel_Corrosion_Behaviors_in_Carbonated_Aqueous_Mixtures_of_Monoethanolamine_and_1-n-butyl-3-methylimidazolium_Tetrafluoroborate.pdf Ali, Brahim Si and Ali, B.H. and Yusoff, Rozita and Aroua, M.K. (2012) Carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1-n-butyl-3-methylimidazolium tetrafluoroborate. International Journal of Electrochemical Science, 7 (5). pp. 3835-3853. ISSN 1452-3981, http://www.electrochemsci.org/papers/vol7/7053835.pdf |
| spellingShingle | TA Engineering (General). Civil engineering (General) Ali, Brahim Si Ali, B.H. Yusoff, Rozita Aroua, M.K. Carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1-n-butyl-3-methylimidazolium tetrafluoroborate |
| title | Carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1-n-butyl-3-methylimidazolium tetrafluoroborate |
| title_full | Carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1-n-butyl-3-methylimidazolium tetrafluoroborate |
| title_fullStr | Carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1-n-butyl-3-methylimidazolium tetrafluoroborate |
| title_full_unstemmed | Carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1-n-butyl-3-methylimidazolium tetrafluoroborate |
| title_short | Carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1-n-butyl-3-methylimidazolium tetrafluoroborate |
| title_sort | carbon steel corrosion behaviors in carbonated aqueous mixtures of monoethanolamine and 1 n butyl 3 methylimidazolium tetrafluoroborate |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.um.edu.my/5753/1/Carbon_Steel_Corrosion_Behaviors_in_Carbonated_Aqueous_Mixtures_of_Monoethanolamine_and_1-n-butyl-3-methylimidazolium_Tetrafluoroborate.pdf |
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