Menu
Search
Filters
Close
Menu

Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!

51313-02171-Effect of Oxy-Firing on Corrosion Rates at 600°- 800°C

Picture for Effect of Oxy-Firing on Corrosion Rates at 600°- 800°C
Available for download
Product Number: 51313-02171-SG
ISBN: 02171 2013 CP
Author: Bruce Pint
Publication Date: 2013
$0.00
$20.00
$20.00

Using oxygen rather than air in coal-fired boilers has been studied for several years as a strategy to reduce NOx and concentrate CO2 for capture. In combination with flue gas recirculation higher levels of CO2 are expected but increased H2O and SO2 levels also may occur. In order to understand the role of substrate composition on corrosion a combination of commercial and model alloys are being investigated both with and without the presence of synthetic coal ash. Previous work focused on 600°C with ferritic and austenitic steel coupons to simulate conditions in current boilers. Little effect was found when the synthetic ash composition was held constant and the gas changed to predominantly CO2. The current work is considering higher temperatures for advanced boiler concepts and including Ni-base alloys and weld-overlay coupons for comparison. Oxide thickness results will be presented as a function of temperature for both air- and oxy-firing conditions. The effect of Ti and Al additions on the corrosion rate of Ni-22Cr model alloys also will be reported.

Using oxygen rather than air in coal-fired boilers has been studied for several years as a strategy to reduce NOx and concentrate CO2 for capture. In combination with flue gas recirculation higher levels of CO2 are expected but increased H2O and SO2 levels also may occur. In order to understand the role of substrate composition on corrosion a combination of commercial and model alloys are being investigated both with and without the presence of synthetic coal ash. Previous work focused on 600°C with ferritic and austenitic steel coupons to simulate conditions in current boilers. Little effect was found when the synthetic ash composition was held constant and the gas changed to predominantly CO2. The current work is considering higher temperatures for advanced boiler concepts and including Ni-base alloys and weld-overlay coupons for comparison. Oxide thickness results will be presented as a function of temperature for both air- and oxy-firing conditions. The effect of Ti and Al additions on the corrosion rate of Ni-22Cr model alloys also will be reported.

Product tags
Also Purchased
Picture for Oxidation Behavior of Alumina-Forming Austenitic Steel
Available for download

51313-02172-Oxidation Behavior of Alumina-Forming Austenitic Steel

Product Number: 51313-02172-SG
ISBN: 02172 2013 CP
Author: Bruce Pint
Publication Date: 2013
$20.00
Picture for Naphthenic Acid Corrosion on an Extra-Heavy Crude Oil Upgrader Medium Vacuum Gasoil Side Cut Piping
Available for download

51313-02185-Naphthenic Acid Corrosion on an Extra-Heavy Crude Oil Upgrader Medium Vacuum Gasoil Side Cut Piping

Product Number: 51313-02185-SG
ISBN: 02185 2013 CP
Author: Hon Ng
Publication Date: 2013
$20.00
Picture for High Chromium Stainless Steel for High-Temperature Corrosion Protection in Coal-Fired Boilers
Available for download

51313-02184-High Chromium Stainless Steel for High-Temperature Corrosion Protection in Coal-Fired Boilers

Product Number: 51313-02184-SG
ISBN: 02184 2013 CP
Author: Bingtao Li
Publication Date: 2013
$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