Abstract
This paper describes the corrosion of carbon steel equipment by an MDEA solution at about 260°F. The corrosion correlated well with the levels of carboxylic acids present, specifically formates and acetates. Plugging of filters and the amine contactors was a major operating problem. Improvements included installation of austenitic and duplex stainless steel equipment, water washing of the sour gas before contact with the amine, periodic caustic additions, and use of an antioxidant chemical.
Subject
Acids,
Water,
Corrosion rate,
Formates,
Iron sulfides,
Scrubbers,
Filters,
Amines,
Reboilers,
Equipment,
Carbon steel,
Fouling,
Hydrocarbons
© 1992 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).
1992
Association for Materials Protection and Performance (AMPP)
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