Corrosion of steel in a CO2-containing solution droplet generated in wet gas pipelines studied by scanning Kelvin probe
A scanning Kelvin probe (SKP) was used to study corrosion of X52 pipeline steel under a CO2-containing solution droplet simulating the water condensate generated in interior of wet gas pipelines. The Volta potential measured by SKP was indicative of the feature of corrosion occurring under the dropl...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2022-03-01
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| Series: | Journal of Pipeline Science and Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667143321000780 |
| _version_ | 1811272015142715392 |
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| author | Shan Qian Y. Frank Cheng |
| author_facet | Shan Qian Y. Frank Cheng |
| author_sort | Shan Qian |
| collection | DOAJ |
| description | A scanning Kelvin probe (SKP) was used to study corrosion of X52 pipeline steel under a CO2-containing solution droplet simulating the water condensate generated in interior of wet gas pipelines. The Volta potential measured by SKP was indicative of the feature of corrosion occurring under the droplet. Three potential zones were observed from the droplet center towards the transition and the side of the droplet, which were -0.1 V, -0.4 V and 0.1 V (Kelvin probe, kp), respectively, after 4 h of testing. The droplet side had the highest Volta potential, which was attributed to corrosion scale generation and precipitation due to a limited solution volume and achieved solubility limit of FeCO3 scale. The transition zone possessed the most negative Volta potential due to a higher corrosion activity than the droplet center with more supply and dissolution of CO2, while the droplet center had the thickest solution. The SKP measurements could estimate the volume evolution of the solution droplet with time at a relatively accurate scale. The solution droplet could maintain its topographic feature, i.e., a spherical cap shape, within 4 h of testing in this work. The increase in droplet concentration due to solution evaporation during testing affected the Volta potential, but slightly only. |
| first_indexed | 2024-04-12T22:32:37Z |
| format | Article |
| id | doaj.art-2d76667dcefe4247a282230f8a0f5c92 |
| institution | Directory Open Access Journal |
| issn | 2667-1433 |
| language | English |
| last_indexed | 2024-04-12T22:32:37Z |
| publishDate | 2022-03-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Journal of Pipeline Science and Engineering |
| spelling | doaj.art-2d76667dcefe4247a282230f8a0f5c922022-12-22T03:13:56ZengKeAi Communications Co. Ltd.Journal of Pipeline Science and Engineering2667-14332022-03-01217177Corrosion of steel in a CO2-containing solution droplet generated in wet gas pipelines studied by scanning Kelvin probeShan Qian0Y. Frank Cheng1Department of Mechanical Engineering, University of Calgary, Calgary, Alberta T2N 1N4, CanadaCorresponding author.; Department of Mechanical Engineering, University of Calgary, Calgary, Alberta T2N 1N4, CanadaA scanning Kelvin probe (SKP) was used to study corrosion of X52 pipeline steel under a CO2-containing solution droplet simulating the water condensate generated in interior of wet gas pipelines. The Volta potential measured by SKP was indicative of the feature of corrosion occurring under the droplet. Three potential zones were observed from the droplet center towards the transition and the side of the droplet, which were -0.1 V, -0.4 V and 0.1 V (Kelvin probe, kp), respectively, after 4 h of testing. The droplet side had the highest Volta potential, which was attributed to corrosion scale generation and precipitation due to a limited solution volume and achieved solubility limit of FeCO3 scale. The transition zone possessed the most negative Volta potential due to a higher corrosion activity than the droplet center with more supply and dissolution of CO2, while the droplet center had the thickest solution. The SKP measurements could estimate the volume evolution of the solution droplet with time at a relatively accurate scale. The solution droplet could maintain its topographic feature, i.e., a spherical cap shape, within 4 h of testing in this work. The increase in droplet concentration due to solution evaporation during testing affected the Volta potential, but slightly only.http://www.sciencedirect.com/science/article/pii/S2667143321000780CorrosionGas pipelinesSolution dropletScanning Kelvin probeVolta potential |
| spellingShingle | Shan Qian Y. Frank Cheng Corrosion of steel in a CO2-containing solution droplet generated in wet gas pipelines studied by scanning Kelvin probe Journal of Pipeline Science and Engineering Corrosion Gas pipelines Solution droplet Scanning Kelvin probe Volta potential |
| title | Corrosion of steel in a CO2-containing solution droplet generated in wet gas pipelines studied by scanning Kelvin probe |
| title_full | Corrosion of steel in a CO2-containing solution droplet generated in wet gas pipelines studied by scanning Kelvin probe |
| title_fullStr | Corrosion of steel in a CO2-containing solution droplet generated in wet gas pipelines studied by scanning Kelvin probe |
| title_full_unstemmed | Corrosion of steel in a CO2-containing solution droplet generated in wet gas pipelines studied by scanning Kelvin probe |
| title_short | Corrosion of steel in a CO2-containing solution droplet generated in wet gas pipelines studied by scanning Kelvin probe |
| title_sort | corrosion of steel in a co2 containing solution droplet generated in wet gas pipelines studied by scanning kelvin probe |
| topic | Corrosion Gas pipelines Solution droplet Scanning Kelvin probe Volta potential |
| url | http://www.sciencedirect.com/science/article/pii/S2667143321000780 |
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