Wettability of steel surfaces at CO{sub 2} corrosion conditions. 1: Effect of surface active compounds in aqueous and hydrocarbon media
Conference
·
OSTI ID:350198
- Iserlohn Univ. of Applied Sciences (Germany). Lab. for Corrosion Protection
- Corp. para la Investigation de la Corrosion, Bucamaranga (Colombia)
The wettability of carbon steel surfaces with aqueous media (distilled water, brines) and hydrocarbon media (crude oils) was studied under CO{sub 2} corrosion conditions at 75 and 80 C and 5 bar CO{sub 2} with respect to the effect of surface active compounds (inhibitors, demulsifiers) by quasi-insitu and insitu contact angle measurements in a high pressure test cell. Fatty alcohol ethoxylates, quats, amines and imidazolines influence the hydro-philic/hydrophobic properties of carbonate scales on corroding carbon steel, but inhibiting mechanisms cannot be explained by hydrophobing effects alone. The method yields easy and quick information on substance effects, specifically in case of insitu measurements in oil-in-water systems.
- OSTI ID:
- 350198
- Report Number(s):
- CONF-980316--
- Country of Publication:
- United States
- Language:
- English
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