Many process conditions in refinery amine units are known to promote accelerated corrosion. Monitoring corrosion in these units typically is limited to the traditional means - coupons, linear polarization probes, electrical resistance probes and so forth. Amine analyses are useful but not entirely without shortcomings when applied to corrosion monitoring. Computer modeling has evolved to become a useful tool in identifying potentially corrosive environments in localized areas within the unit. In this paper, a computer model is developed using data from a refinery system using MDEA to remove hydrogen sulfide from a process stream also containing carbon dioxide. Rules for reducing corrosion developed in-house or in literature are applied to anticipate corrosion.

Subject
Acids, Hydrogen sulfide, Piping, Modeling, Hydrogen concentration, Refineries, Solutions, Amines, Corrosion modeling, Reboilers, Equipment, Carbon dioxide, Steam
Keywords:
Amine, alkanolamines, hydrogen sulfide, carbon dioxide, Heat Stable Salts, monoethanolamine, diethanolamine, Diglycolamine, methyl diethanolamine, computer model
© 2006 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).
2006
Association for Materials Protection and Performance (AMPP)
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