Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

02237 A MECHANISTIC MODEL OF IRON CARBONATE FILM GROWTH AND THE EFFECT ON CO2 CORROSION OF MILD STEEL

Picture for 02237 A MECHANISTIC MODEL OF IRON CARBONATE...
Available for download
Product Number: 51300-02237-SG
ISBN: 02237 2002 CP
Author: Srdjan Nesic, Kun-Lin John Lee, and Vukan Ruzic
$0.00
$20.00
$20.00
A model of iron carbonate (FeCO3) film growth is proposed, which is an extension of the recent mechanistic model of CO2 corrosion by Nesic et al. In the present model the film growth occurs by precipitation of iron carbonate once saturation is exceeded. The kinetics of precipitation is dependent on temperature and local species concentrations which are calculated by solving the coupled species transport equations. Precipitation tends to build up a layer of iron carbonate on the surface of the steel and reduce the corrosion rate. On the other hand, the corrosion process induces voids under the precipitated film thus increasing the porosity and leading to a higher corrosion rate. Depending on the environmental parameters such as temperature, pH, CO2 partial pressure, velocity, etc, the balance of the two processes can lead to a variety of outcomes. Very protective films and low corrosion rates are predicted at high pH, temperature, CO2 partial pressure and Fe 2+ ion concentration due to formation of dense protective films as expected. The model has been successfully calibrated against limited experimental data. Parametric testing of the model has been done in order to gain insight into the effect of various environmental parameters on iron carbonate film formation. The trends shown in the predictions agreed well with the general understanding of the CO2 corrosion process in the presence of iron carbonate films. The present model confirms that the concept of scaling tendency is a good tool for predicting the likelihood of protective iron carbonate film formation.
A model of iron carbonate (FeCO3) film growth is proposed, which is an extension of the recent mechanistic model of CO2 corrosion by Nesic et al. In the present model the film growth occurs by precipitation of iron carbonate once saturation is exceeded. The kinetics of precipitation is dependent on temperature and local species concentrations which are calculated by solving the coupled species transport equations. Precipitation tends to build up a layer of iron carbonate on the surface of the steel and reduce the corrosion rate. On the other hand, the corrosion process induces voids under the precipitated film thus increasing the porosity and leading to a higher corrosion rate. Depending on the environmental parameters such as temperature, pH, CO2 partial pressure, velocity, etc, the balance of the two processes can lead to a variety of outcomes. Very protective films and low corrosion rates are predicted at high pH, temperature, CO2 partial pressure and Fe 2+ ion concentration due to formation of dense protective films as expected. The model has been successfully calibrated against limited experimental data. Parametric testing of the model has been done in order to gain insight into the effect of various environmental parameters on iron carbonate film formation. The trends shown in the predictions agreed well with the general understanding of the CO2 corrosion process in the presence of iron carbonate films. The present model confirms that the concept of scaling tendency is a good tool for predicting the likelihood of protective iron carbonate film formation.
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 01040 A Mechanistic Model for C02 Corrosion
Available for download

01040 A Mechanistic Model for CO2 Corrosion with Protective Iron Carbonate Films

Product Number: 51300-01040-SG
ISBN: 01040 2001 CP
Author: Srdjan Nesic, Magnus Nordsveen, Rolf Nyborg and Aage Stangeland
$20.00
Picture for 03631 ON COUPLING CO2 CORROSION AND MULTIPHASE
Available for download

03631 ON COUPLING CO2 CORROSION AND MULTIPHASE FLOW MODELS

Product Number: 51300-03631-SG
ISBN: 03631 2003 CP
Author: Shihuai Wang, Srdjan Nesic
$20.00
Picture for 04380 A Parametric Study and Modeling on Localized
Available for download

04380 Yuhua Sun, BP; Srdjan Nesic, Ohio University

Product Number: 51300-04380-SG
ISBN: 04380 2004 CP
Author: A Parametric Study and Modeling on Localized CO2 Corrosion in Horizontal Wet Gas Flow
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support