This paper investigates the corrosion that had occurred within the waterside of glass lined reaction vessels on a multi-purpose manufacturing unit. Looking particularly at the parameters which influence corrosion rates and evaluating how the water treatment programme could be modified to reduce corrosion rates. The investigation showed that severe underdeposit corrosion was occurring and that some of the reaction vessels had a lifetime of about 5 years. The cooling water treatment was modified to use an advanced zinc treatment. This reduced corrosion rates in the reactor jackets which has extended the expected lifetime of the reactors and reduced maintenance and unscheduled shut-downs on the site.

Subject
Water, Corrosion rate, Reactors, Under deposit corrosion, Corrosion reactions, Acidity, Pitting, Deposit corrosion, Cooling water, Zinc, Jackets, Steam, Chemical reactions
© 1989 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).
1989
Association for Materials Protection and Performance (AMPP)
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