The debate on sequestration of CO2 has renewed the interest for corrosion in liquid/supercritical CO2. Experience from the utilization of CO2 for enhanced oil recovery (EOR), shows that there are few problems as long as the fluid is pure and the water content is controlled. There is a lack of quantitative data, but as a guideline, it is said that carbon steel can be used as long as the fluid is dry, while wet systems require stainless qualities. Our measurements and some earlier studies, indicate that the corrosion rate of carbon steel in wet CO2 is substantial, but it does not increase linearly with CO2 fugacity, and it even seems that there is a maximum in the corrosion rate at moderate pressures.

Subject
Mechanistic models, Water, Corrosion rate, Autoclaves, Saturation, Pipelines, Iron, Corrosion modeling, Fluids, Fugacity, Film formation, Pressure, Carbon steel
© 2001 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
2001
Association for Materials Protection and Performance (AMPP)
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