Pilot plants with capacities of up to 600 tons/d are currently demonstrating the engineering feasibility of several coal liquefaction processes including Solvent Refined Coal (SRC), Exxon Donor Solvent (EDS), and H-Coal. These plants are the first step toward the commercial production of synthetic fuels. Among other factors, development of the technology depends on reliable materials performance. Austenitic stainless steels necessary for general corrosion resistance may be susceptible to stress corrosion cracking in these environments. To screen candidate materials of construction for resistance to stress corrosion cracking, we exposed racks of stressed U-bend specimens at four coal liquefaction pilot plants. Results from exposures through June 1980 were described in a previous paper for exposures in the SRC plants. This paper summarizes the on-site test results from June 1980 through September 1981 for the two SRC and the H-Coal and Exxon coal liquefaction pilot plants.

Subject
Materials, Stainless alloys, Corrosion rate, Nickel based alloys, Transgranular stress corrosion cracking, Solvents, Stress cracking, Vapors, U bends, Coal, Stainless steel, Chlorides, Chloride stress corrosion cracking
© 1982 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).
1982
Association for Materials Protection and Performance (AMPP)
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