Corrosion of carbon steel by CO{sub 2} solutions: The role of fluid flow
- Shell Development Co., Houston, TX (United States)
Analysis of recently reported observations of corrosion of carbon steel by CO{sub 2} in pipes, impinging jets and rotating cylinders illustrates the importance of distinguishing between momentum and mass transport. Apparent inconsistencies in the data can be explained. Increasing flow rates can cause increases in momentum, heat and mass transfer. In the case of corrosion of carbon steel by CO{sub 2}, increases in the corrosion rate have been observed. This paper addresses the question, ``Which physical effect (wall shear stress or mass transfer) plays a prominent role in raising the corrosion rate?`` Experiments in pipe, impinging jet, and rotating cylinder flows are analyzed. Although all of these systems have well defined momentum and mass transport rates, the rates differ from each other for each system. Careful analysis of mass transport in the entry region supports the interpretation that the increase in corrosion rate with flow is related to mass transfer, and not local shear stress.
- OSTI ID:
- 106123
- Report Number(s):
- CONF-950304-; TRN: IM9542%%211
- Resource Relation:
- Conference: Corrosion `95: National Association of Corrosion Engineers (NACE) international annual conference and corrosion show, Orlando, FL (United States), 26-31 Mar 1995; Other Information: PBD: 1995; Related Information: Is Part Of Corrosion/95 conference papers; PB: 5788 p.
- Country of Publication:
- United States
- Language:
- English
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