Water wash systems have been used by refiners in distillation overheads for decades to assist with corrosion control. Some of these wash systems have worked well reducing overhead corrosion from HCl salts providing the operator with valuable flexibility in operation of the crude unit. However, some wash systems struggle to protect the system from salt corrosion despite implementing many industry-popular features in the wash design. In a follow up to C2023-18757, “Considering Mass Transfer in Refinery Crude Distillation Overhead Water Wash”, this paper covers practical application of mass transfer equations to evaluate the potential effectiveness of water wash systems for various overhead scenarios.1  Insights and challenges to successful washing will be discussed.

Subject
Salt formation, Water, Piping, Droplets, Salts, Corrosion rate, Nozzles, Walls, Water dew, Refineries, Vapors, Mass transfer, Chlorides
© 2025 Association for Materials Protection and Performance (AMPP). All rights reserved. This work is protected by both domestic and international copyright laws. 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).
2025
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.