Abstract
This paper intends to provide a detailed description of a corrosion problem1 observed in the amine regenerating column in Amine Treatment Unit at a refinery. A leak was observed in a section of the column that had previously been repaired. Localized groove marks were observed on the internal surfaces of the column. Grooving was determined to be the result of acid gas out break inside the column which resulted in highly accelerated metal loss. This paper also discusses the probable causes of such corrosion attack, and likely remedies to control corrosion of the column. Insight and a description of the refinery’s adopted corrosion mitigation strategy have also been discussed.
Subject
Acids,
Sulfur,
Materials,
Salts,
Refineries,
Metal loss,
Filters,
Amines,
Heat,
Crude,
Localized corrosion,
Steam,
Uniform corrosion
© 2009 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).
2009
Association for Materials Protection and Performance (AMPP)
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