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51316-7128-Concept of Using Physics-Based Models for Real Time Corrosion Monitoring

 The concept of using physics-based models for corrosion monitoring is still new although corrosion monitoring by use of hardware coupons and probes is well recognized.  This paper describes the application in downstream related to crude unit overhead and demonstrates how the monitoring concept can be used and its benefits.

Product Number: 51316-7128-SG
ISBN: 7128 2016 CP
Author: Fengmei Song
Publication Date: 2016
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The concept of using physics-based models for real time monitoring is new while corrosion monitoring by use of coupons and probes is well recognized. Corrosion models have traditionally been used for predictions in industrial applications when need arises due to a failure analysis during project design or during asset integrity reviews. As process and operating data and lab analytical data some of which are often used as input variables for a corrosion model become available in real time through automation and optimization engines the corrosion model can be automated to calculate corrosion rate or wall loss and assess corrosion threat in real time such as daily. The model results can be tracked and used for monitoring purpose through setting integrity operating window providing rapid warning through traffic light whenever a key control variable breaks its limits. This monitoring through corrosion model is particularly useful for assets with extreme difficulty for inspection or for installing any hardware monitoring devices such as subsea piping. Both downstream and upstream examples are presented to demonstrate how this concept works and its benefit.

Keywords: downloadable, ammonia chloride, amine hydrochloride, corrosion monitoring, corrosion model, dewpoint corrosion, salt-point, integrity operating window

 

 

The concept of using physics-based models for real time monitoring is new while corrosion monitoring by use of coupons and probes is well recognized. Corrosion models have traditionally been used for predictions in industrial applications when need arises due to a failure analysis during project design or during asset integrity reviews. As process and operating data and lab analytical data some of which are often used as input variables for a corrosion model become available in real time through automation and optimization engines the corrosion model can be automated to calculate corrosion rate or wall loss and assess corrosion threat in real time such as daily. The model results can be tracked and used for monitoring purpose through setting integrity operating window providing rapid warning through traffic light whenever a key control variable breaks its limits. This monitoring through corrosion model is particularly useful for assets with extreme difficulty for inspection or for installing any hardware monitoring devices such as subsea piping. Both downstream and upstream examples are presented to demonstrate how this concept works and its benefit.

Keywords: downloadable, ammonia chloride, amine hydrochloride, corrosion monitoring, corrosion model, dewpoint corrosion, salt-point, integrity operating window

 

 

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