This paper provides a review of how basic inhibition of industrial boiler waterside deposition has evolved from phosphate conditioning to current chelant and polymer technologies. The benefits, and limitations of polymers are reviewed. On-line results monitoring is discussed as a proven approach to determining the relative efficacy of internal treatment programs. Lastly, new boiler water test procedures for EDTA and carboxylated polymers are highlighted as important elements of a cost-effective deposit control program.

Subject
Test methods, Water, Chelation, Solubility, Calcium, Ion concentrations, Polymers, Feedwater, Phosphates, Boilers, Deposit corrosion, Upset, Hardness
© 1988 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).
1988
Association for Materials Protection and Performance (AMPP)
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