Some of the most serious and least easily inhibited corrosion problems are encountered when H2S and oxygen (or other oxidants) are mixed together with an aqueous phase. General corrosion rates in these systems can easily run to several hundred mils per year (MPY) and growing pits which are always present can penetrate even more rapidly. When the corrosion problem is caused by a mixed H2S/O2 gas phase in good physical contact with an aqueous or mixed aqueous/hydrocarbon-liquid phase, the corrodent depolarizers are continuously renewed and maximum corrosion rates result. It is common experience that conventional corrosion inhibitors are very hard put to combat this type of corrosion and in many cases fail completely.

Subject
Water, Inhibitor performance, Corrosion rate, Mixtures, Inhibitor treatment, Corrosion inhibitors, Steel, Brines, Pitting, Oxygen, Corrosion protection, Deposit corrosion, Hydrocarbons
© 1971 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).
1971
Association for Materials Protection and Performance (AMPP)
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