This paper describes a systematic approach that is used to diagnose and mitigate corrosion problems in hydroprocessing unit reactor effluent air cooler systems. The methodology is based on an extensive evaluation of hydroprocessing water wash best practices and addresses both design and operational issues by using state-of-the-art process engineering and corrosion prediction models. The goal is to develop cost-effective and robust solutions to reliability problems in reactor effluent air coolers and associated piping. The paper provides examples where this knowledge and methodology have been applied effectively to a variety of hydroprocessing units around the world.

Subject
Wash water, Water, Materials, Piping, Corrosion rate, Tubes, Inspection, Carbon steel pipes, Sour water, Cooling systems, Corrosion data, Reactor effluent air coolers, Fouling
Keywords:
ammonium bisulfide, NH4HS, water wash, reactor effluent air cooler, REAC, hydroprocessing unit, best practices, reliability, risk
© 2003 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).
2003
Association for Materials Protection and Performance (AMPP)
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