With the growth of CO2 utilization for enhanced oil recovery (EOR) and the expansion of carbon capture and sequestration projects, there is a greater need for reliable and safe CO2 transportation infrastructure. Impurities present in the dense phase CO2 stream can have a detrimental effect on the corrosion mechanism of the pipeline, leading to catastrophic failure and increased maintenance costs. The current research focused on understanding and quantifying the impact of impurities on the corrosion severity of CO2 dense phase transmission pipelines. This paper shares a review of the impact of different impurities on the corrosion severity in dense phase CO2 environment. The various mechanisms by which impurities can promote corrosion are discussed, including chemical and electrochemical reactions. Furthermore, this work will present future research in this area aimed at improving the understanding and impact of impurities in industrial applications.

Subject
Acids, Water, Corrosion rate, Transmission pipelines, Pipelines, Solubility, Petroleum, Gas pressure, Corrosion reactions, Lead, Liquids, Impurities, Chemical reactions
Keywords:
Dense phase CO2, impurities, transmission pipeline, CO2 corrosion
© 2023 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).
2023
Association for Materials Protection and Performance (AMPP)
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