Assessment of corrosion control by pH neutralisation in the presence of glycol at low temperature
© 2017 Elsevier Ltd. The effect of pH controlled by n-methyldiethanolamine (MDEA), partial pressure of CO 2 , and monoethylene glycol (MEG) on corrosion behaviour of carbon steel (X65) at 10 °C was investigated. Linear polarisation resistance and electrochemical impedance spectroscopy techniques wer...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Elsevier
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/55134 |
| _version_ | 1848759544115625984 |
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| author | Pojtanabuntoeng, Kod Kinsella, Brian Ehsani, H. McKechnie, J. |
| author_facet | Pojtanabuntoeng, Kod Kinsella, Brian Ehsani, H. McKechnie, J. |
| author_sort | Pojtanabuntoeng, Kod |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 Elsevier Ltd. The effect of pH controlled by n-methyldiethanolamine (MDEA), partial pressure of CO 2 , and monoethylene glycol (MEG) on corrosion behaviour of carbon steel (X65) at 10 °C was investigated. Linear polarisation resistance and electrochemical impedance spectroscopy techniques were used. The optimum pH which yielded reasonable corrosion rate reduction was 6.5-7. While demanded impractical concentration of MDEA, increasing pH further to 8.5 marginally decreased corrosion rate as the reduction of bicarbonate ions became a dominant cathodic reaction. The double layer capacitance decreased in the presence of MEG indicating the adsorption of MEG at the steel surface and reduced corrosion rate. |
| first_indexed | 2025-11-14T10:01:34Z |
| format | Journal Article |
| id | curtin-20.500.11937-55134 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:01:34Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-551342017-09-13T16:11:25Z Assessment of corrosion control by pH neutralisation in the presence of glycol at low temperature Pojtanabuntoeng, Kod Kinsella, Brian Ehsani, H. McKechnie, J. © 2017 Elsevier Ltd. The effect of pH controlled by n-methyldiethanolamine (MDEA), partial pressure of CO 2 , and monoethylene glycol (MEG) on corrosion behaviour of carbon steel (X65) at 10 °C was investigated. Linear polarisation resistance and electrochemical impedance spectroscopy techniques were used. The optimum pH which yielded reasonable corrosion rate reduction was 6.5-7. While demanded impractical concentration of MDEA, increasing pH further to 8.5 marginally decreased corrosion rate as the reduction of bicarbonate ions became a dominant cathodic reaction. The double layer capacitance decreased in the presence of MEG indicating the adsorption of MEG at the steel surface and reduced corrosion rate. 2017 Journal Article http://hdl.handle.net/20.500.11937/55134 10.1016/j.corsci.2017.06.018 Elsevier restricted |
| spellingShingle | Pojtanabuntoeng, Kod Kinsella, Brian Ehsani, H. McKechnie, J. Assessment of corrosion control by pH neutralisation in the presence of glycol at low temperature |
| title | Assessment of corrosion control by pH neutralisation in the presence of glycol at low temperature |
| title_full | Assessment of corrosion control by pH neutralisation in the presence of glycol at low temperature |
| title_fullStr | Assessment of corrosion control by pH neutralisation in the presence of glycol at low temperature |
| title_full_unstemmed | Assessment of corrosion control by pH neutralisation in the presence of glycol at low temperature |
| title_short | Assessment of corrosion control by pH neutralisation in the presence of glycol at low temperature |
| title_sort | assessment of corrosion control by ph neutralisation in the presence of glycol at low temperature |
| url | http://hdl.handle.net/20.500.11937/55134 |