During pilot plant operations for the SRC-I process, severe corrosion developed in the solvent fractionation towers. This high corrosion rate on carbon and Types 304 and 316 stainless steel occurred when the pilot plant was processing coal with 0.15-0.39 wt % chloride. Subsequent stream analyses revealed the synergistic effects of inorganic chloride, phenols, and nitrogen compounds were responsible for the corrosion which was most severe in the 200°C (400°F) boiling range. Liquid analysis also revealed the most likely path of chlorides to the tower.

Subject
Water, Phenols, Sodium carbonate, Corrosion rate, Corrosivity, Solvents, Liquids, Towers, Coal, Deposit corrosion, Chlorides, Samples, Oil
© 1981 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).
1981
Association for Materials Protection and Performance (AMPP)
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