Process simulations are used in refineries to determine the optimum operating parameters for a wide range of processes. The development of Omega1 technology by the oil industry in the 1990’s led a new type of simulation that made it possible to assess both the effects of corrosion and past service on the remaining life of high temperature refinery equipment. Furnace tubes are a type of high temperature equipment that is well suited to Omega simulation analyses. However, in coker furnaces the accumulation of coke inside the tubes leads to gradual changes in temperature and pressure that make accurate simulations of the coker furnace difficult. This paper describes how corrosion data and process data can be used in Omega simulations to obtain accurate assessments of coker furnace tube remaining life. Included in this paper is an explanation of how anticipated changes in process conditions can be evaluated with Omega simulations to assess the impact of those changes on coker furnace tube life.

Subject
Modeling, Corrosion rate, Tubes, Walls, Inspection, Refineries, Coke, Furnaces, Corrosion losses, Equipment, Creep, Pigging, Hydrocarbons
Keywords:
Creep, Omega, refinery, cokers, coking, furnace, tubes, corrosion, sulfidation, pigging
© 2012 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).
2012
Association for Materials Protection and Performance (AMPP)
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