Corrosion of metallic and refractory components in refinery furnaces and boilers, central power stations, ships boilers and other equipment where heavy residual fuel oils are fired, is primarily caused by contact with slags formed by the heavy metals present. Fuels refined from crude oils produced in Venezuela, other Caribbean sources and the Western United States and Canada have high concentrations of vanadium and other metals. These metals are present as organometallic compounds called porphyrins, which are concentrated during the refining process and also as entrained salts such as NaCl(1, 2).

Subject
Chemical compounds, Costs, Materials, Glass, Oxides, Silicon carbide, Silica, Melting point, Corrosion attacks, Penetration, Metals, Ash, Corrosion resistance
© 1976 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).
1976
Association for Materials Protection and Performance (AMPP)
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