Deposition of ammonium salts in hydroprocessing units reactor effluent streams has long been recognized as a potential problem. In order to keep these salts from depositing, these units are normally designed with a water wash system.

This paper will discuss the following:

  • The guidelines that are typically used for the design of these systems.

  • The merits and applicability of these guidelines.

  • Opportunities for optimizing unit configurations and other process variables to achieve the lowest cost water wash system that is safe and effective.

Also included are techniques for calculating some of the important variables from plant data.

Subject
Wash water, Water, Modeling, Salts, Reactors, Industries, Ammonia, Vapors, Cooling systems, Nitrogen, Reactor effluent, Ammonium chloride, Ammonium bisulfide
Keywords:
Hydroprocessing, Hydrotreating, Hydrocracking, Ammonium Bisulfide, Ammonium Chloride, Wash Water, Corrosion, Reactor Effluent Air Cooler
© 1998 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).
1998
Association for Materials Protection and Performance (AMPP)
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