The Effect of Monoethylene Glycol on Calcium Carbonate Solubility at High Temperatures
Copyright © 2018 American Chemical Society. This study presents the solubility of calcium carbonate in monoethylene glycol (MEG)/water solution at high temperatures and high MEG concentrations. The conditions simulate the water removal process during MEG regeneration. Solubility was measured by diss...
| Main Authors: | , , , |
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| Format: | Journal Article |
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American Chemical Society
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/71472 |
| _version_ | 1848762488757157888 |
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| author | Odeigah, E. Pojtanabuntoeng, Kod Jones, Franca Gubner, Rolf |
| author_facet | Odeigah, E. Pojtanabuntoeng, Kod Jones, Franca Gubner, Rolf |
| author_sort | Odeigah, E. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Copyright © 2018 American Chemical Society. This study presents the solubility of calcium carbonate in monoethylene glycol (MEG)/water solution at high temperatures and high MEG concentrations. The conditions simulate the water removal process during MEG regeneration. Solubility was measured by dissolution at equilibrium, and the thermodynamics of the dissolution process of calcium carbonate was also explored. The solubility of calcium carbonate decreased with increasing temperature up to 120 °C and showed a slight increase above 120 °C. The presence of MEG increased the activity coefficient of calcium carbonate and calcium ions with respect to temperature. The effect of MEG degradation on the solubility of calcium carbonate was also studied. At all temperatures studied (90 to 145 °C), MEG degraded in the presence of residual dissolved oxygen to produce acetate ions which complexed with calcium ions resulting in an increase in calcium solubility. |
| first_indexed | 2025-11-14T10:48:22Z |
| format | Journal Article |
| id | curtin-20.500.11937-71472 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:48:22Z |
| publishDate | 2018 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-714722018-12-13T09:31:54Z The Effect of Monoethylene Glycol on Calcium Carbonate Solubility at High Temperatures Odeigah, E. Pojtanabuntoeng, Kod Jones, Franca Gubner, Rolf Copyright © 2018 American Chemical Society. This study presents the solubility of calcium carbonate in monoethylene glycol (MEG)/water solution at high temperatures and high MEG concentrations. The conditions simulate the water removal process during MEG regeneration. Solubility was measured by dissolution at equilibrium, and the thermodynamics of the dissolution process of calcium carbonate was also explored. The solubility of calcium carbonate decreased with increasing temperature up to 120 °C and showed a slight increase above 120 °C. The presence of MEG increased the activity coefficient of calcium carbonate and calcium ions with respect to temperature. The effect of MEG degradation on the solubility of calcium carbonate was also studied. At all temperatures studied (90 to 145 °C), MEG degraded in the presence of residual dissolved oxygen to produce acetate ions which complexed with calcium ions resulting in an increase in calcium solubility. 2018 Journal Article http://hdl.handle.net/20.500.11937/71472 10.1021/acs.iecr.8b03761 American Chemical Society restricted |
| spellingShingle | Odeigah, E. Pojtanabuntoeng, Kod Jones, Franca Gubner, Rolf The Effect of Monoethylene Glycol on Calcium Carbonate Solubility at High Temperatures |
| title | The Effect of Monoethylene Glycol on Calcium Carbonate Solubility at High Temperatures |
| title_full | The Effect of Monoethylene Glycol on Calcium Carbonate Solubility at High Temperatures |
| title_fullStr | The Effect of Monoethylene Glycol on Calcium Carbonate Solubility at High Temperatures |
| title_full_unstemmed | The Effect of Monoethylene Glycol on Calcium Carbonate Solubility at High Temperatures |
| title_short | The Effect of Monoethylene Glycol on Calcium Carbonate Solubility at High Temperatures |
| title_sort | effect of monoethylene glycol on calcium carbonate solubility at high temperatures |
| url | http://hdl.handle.net/20.500.11937/71472 |