Abstract
The use of phosphorus based inhibitors is a common strategy to control naphthenic acid corrosion. Some users have experienced phosphate fouling that has been attributed to use of these inhibitors. As a result, some have limited the amount of allowable phosphorus, potentially reducing flexibility to safely use high TAN (Total Acid Number) opportunity crudes.
Improved understanding of the corrosion inhibitor chemistry helps to explain the mechanisms of fouling. This improved understanding has led to design of new inhibitors that control corrosion with reduced fouling. The improvement in chemistry in combination with improved monitoring technologies is changing perspectives on TAN Management in Refining.
© 2016 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).
2016
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.
