Technical Note: Characterization of Corrosion Films Formed on Austenitic Stainless Steel in Supercritical CO2 Containing H2O and O2

Oleksak, Richard P.; Baltrus, John P.; Teeter, Lucas; Ziomek-Moroz, Margaret; Doğan, Ömer N.

doi:10.5006/2726

Title: Technical Note: Characterization of Corrosion Films Formed on Austenitic Stainless Steel in Supercritical CO₂ Containing H₂O and O₂

Full Record
Other Related Research

Abstract

Future technologies require structural alloys resistant to corrosion in supercritical CO₂ (sCO₂) fluids containing impurities such as H₂O and O₂. Traditional pipeline steels are potentially unsuitable for these environments and more corrosion resistant alloys such as stainless steels might be required. Little is known about the corrosion products formed on, and hence the processes which control corrosion of, stainless steels in impure sCO₂ environments. In this study, austenitic stainless steel 347H (UNS S34709) was exposed to sCO₂ containing H₂O and O₂ at 8 MPa and 50°C or 250°C, and separately to the aqueous phase in equilibrium with the sCO₂ at 50°C, to simulate conditions expected in sCO₂-based power cycles and carbon capture and storage pipelines. Only thin (< 20 nm) surface films formed after 500 h resulting in small mass changes and corrosion rates < 10^–4 mm/y, suggesting the material resists significant degradation in these environments. X-ray photoelectron spectroscopy and transmission electron microscopy were used to characterize the corrosion films in detail. Here, the exposure to the aqueous phase resulted in a thin (< 5 nm) Cr-oxide and/or -hydroxide passive film, while exposure to sCO₂ phases resulted in a multilayer Fe-rich oxide structure characteristic of a gas-phase oxidation process.

Authors:

Oleksak, Richard P. ^[1]; Baltrus, John P. ^[2]; Teeter, Lucas ^[3]; Ziomek-Moroz, Margaret ^[3]; Doğan, Ömer N. ^[3]

National Energy Technology Lab. (NETL), Albany, OR (United States); AECOM, South Park, PA (United States)
National Energy Technology Laboratory, Pittsburgh, PA (United States)
National Energy Technology Lab. (NETL), Albany, OR (United States)

Publication Date:: Fri Jun 08 00:00:00 EDT 2018

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)

Sponsoring Org.:: FE; USDOE

OSTI Identifier:: 1509737

Report Number(s):: CONTR-PUB-579
Journal ID: ISSN 0010-9312

Grant/Contract Number:: FE0004000

Resource Type:: Accepted Manuscript

Journal Name:: Corrosion

Additional Journal Information:: Journal Volume: 74; Journal Issue: 10; Journal ID: ISSN 0010-9312

Publisher:: NACE International

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Oleksak, Richard P., Baltrus, John P., Teeter, Lucas, Ziomek-Moroz, Margaret, and Doğan, Ömer N. Technical Note: Characterization of Corrosion Films Formed on Austenitic Stainless Steel in Supercritical CO2 Containing H2O and O2.  United States: N. p., 2018. 
Web.  doi:10.5006/2726.

Copy to clipboard


                    Oleksak, Richard P., Baltrus, John P., Teeter, Lucas, Ziomek-Moroz, Margaret, & Doğan, Ömer N. Technical Note: Characterization of Corrosion Films Formed on Austenitic Stainless Steel in Supercritical CO2 Containing H2O and O2.  United States.  https://doi.org/10.5006/2726

Copy to clipboard


                    Oleksak, Richard P., Baltrus, John P., Teeter, Lucas, Ziomek-Moroz, Margaret, and Doğan, Ömer N. Fri .  
"Technical Note: Characterization of Corrosion Films Formed on Austenitic Stainless Steel in Supercritical CO2 Containing H2O and O2".  United States.  https://doi.org/10.5006/2726.  https://www.osti.gov/servlets/purl/1509737.

Copy to clipboard


                    
@article{osti_1509737,

  title        = {Technical Note: Characterization of Corrosion Films Formed on Austenitic Stainless Steel in Supercritical CO2 Containing H2O and O2},

  author       = {Oleksak, Richard P. and Baltrus, John P. and Teeter, Lucas and Ziomek-Moroz, Margaret and Doğan, Ömer N.},

  abstractNote = {Future technologies require structural alloys resistant to corrosion in supercritical CO2 (sCO2) fluids containing impurities such as H2O and O2. Traditional pipeline steels are potentially unsuitable for these environments and more corrosion resistant alloys such as stainless steels might be required. Little is known about the corrosion products formed on, and hence the processes which control corrosion of, stainless steels in impure sCO2 environments. In this study, austenitic stainless steel 347H (UNS S34709) was exposed to sCO2 containing H2O and O2 at 8 MPa and 50°C or 250°C, and separately to the aqueous phase in equilibrium with the sCO2 at 50°C, to simulate conditions expected in sCO2-based power cycles and carbon capture and storage pipelines. Only thin (< 20 nm) surface films formed after 500 h resulting in small mass changes and corrosion rates < 10–4 mm/y, suggesting the material resists significant degradation in these environments. X-ray photoelectron spectroscopy and transmission electron microscopy were used to characterize the corrosion films in detail. Here, the exposure to the aqueous phase resulted in a thin (< 5 nm) Cr-oxide and/or -hydroxide passive film, while exposure to sCO2 phases resulted in a multilayer Fe-rich oxide structure characteristic of a gas-phase oxidation process.},

  doi          = {10.5006/2726},

  journal      = {Corrosion},

  number       = 10,

  volume       = 74,

  place        = {United States},

  year         = {Fri Jun 08 00:00:00 EDT 2018},

  month        = {Fri Jun 08 00:00:00 EDT 2018}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.5006/2726

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 5 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Technical Note: Characterization of Corrosion Films Formed on Austenitic Stainless Steel in Supercritical CO ₂ Containing H ₂ O and O ₂

Journal Article Oleksak, Richard P. ; Baltrus, John P. ; Teeter, Lucas ; ... - Corrosion

Future technologies require structural alloys resistant to corrosion in supercritical CO2 (sCO2) fluids containing impurities such as H2O and O2. Traditional pipeline steels are potentially unsuitable for these environments and more corrosion resistant alloys such as stainless steels might be required. Little is known about the corrosion products formed on, and hence the processes which control corrosion of, stainless steels in impure sCO2 environments. In this study, austenitic stainless steel 347H (UNS S34709) was exposed to sCO2 containing H2O and O2 at 8 MPa and 50 °C or 250 °C, and separately to the aqueous phase in equilibrium with themore »« less
https://doi.org/10.5006/2726

Full Text Available
Corrosion Behavior of Steels in Supercritical CO₂ for Power Cycle Applications

Conference Repukaiti, Richard ; Teeter, Lucas ; Ziomek-Moroz, Margaret ; ...

In order to understand issues with corrosion of heat exchanger materials in direct supercritical carbon dioxide (sCO₂) power cycles, a series of autoclave exposure experiments and electrochemical experiments have been conducted. Corrosion behaviors of 347H stainless steel and P91 martensitic-ferrtic steel in sCO₂ environment have been compared. In autoclave exposure tests performed at 50°C- 245°C and 80 bar. Mass change measurements, surface characterization, and corrosion product analysis have been conducted to understand the corrosion behavior of steels in sCO₂ containing H₂O and O₂. Electrochemical tests performed at room temperature and 50°C, a simulation environment of water condensation phase with dissolvedmore »« less
https://doi.org/10.1149/07711.0799ecst

Full Text Available
Effect of Pressure and Thermal Cycling on Long-Term Oxidation in CO₂ and Supercritical CO₂

Journal Article Pint, Bruce A. ; Pillai, Rishi ; Lance, Michael J. ; ... - Oxidation of Metals

Concentrating solar power plant designers are interested in supercritical CO₂ (sCO₂) for the power block to achieve > 50% electrical efficiency at > 700 °C. The goal of this project was to develop a long-term (> 100 kh) lifetime model for sCO₂ compatibility using 10–15 kh laboratory exposures. Three Ni-based alloys (625, 282 and 740H) and an advanced austenitic stainless steel were evaluated here in long-term exposures at 700–800 °C using 500-h cycles in laboratory air, 0.1 MPa industrial grade (IG) CO₂ and 30 MPa supercritical IG CO₂ and using 10-h cycles in 0.1 MPa IG CO₂ and O₂. Massmore »« less
https://doi.org/10.1007/s11085-020-10004-9

Full Text Available
Effect of Surface Finish on High-Temperature Oxidation of Steels in CO₂, Supercritical CO₂, and Air

Journal Article Oleksak, Richard P. ; Holcomb, Gordon R. ; Carney, Casey S. ; ... - Oxidation of Metals

Current and future power systems require steels resistant to high-temperature oxidation in CO₂-rich environments. The introduction of structural defects by various surface treatments can profoundly affect the oxidation/corrosion behavior of steels in many environments. This effect is largely unexplored for steels exposed to high-temperature CO₂, which is the focus of this work. We prepared Grade 22, Grade 91, 347H, and 310S steels with three different surface finishes, ranging from little to substantial surface damage, and exposed the steels to 1 bar CO₂, 200 bar supercritical CO₂, and laboratory air at 550 °C for up to 1500 h. Surface finish hadmore »« less
Cited by 22
https://doi.org/10.1007/s11085-019-09938-6

Full Text Available
Corrosion of FeCrAl, FeCrAlY, and FeCrAlHf alloys in high temperature H/sub 2/-H/sub 2/O-H/sub 2/S environments

Journal Article Huang, T T ; Lin, Y C ; Pfender, F ; ... - J. Electrochem. Soc.; (United States)

High temperature corrosion plays an important role in the development of many combustion and coal gasification processes. In gastification processes, various grades of fuel gas are produced by the reaction of coal with steam and oxygen at high temperatures. The resulting gas contains hydrogen, steam, carbon dioxide, carbon monoxide, and some methane. It also contains low levels of hydrogen sulfide and other impurities derived from the coal. Reaction of such impurities with alloys is a common cause of corrosion. For example, sulfidation has been shown to have a devastating effect on many metallic structural components in coal gasification environments. Inmore »« less
https://doi.org/10.1149/1.2116048

Similar Records

Title: Technical Note: Characterization of Corrosion Films Formed on Austenitic Stainless Steel in Supercritical CO2 Containing H2O and O2

Abstract

Citation Formats

Title: Technical Note: Characterization of Corrosion Films Formed on Austenitic Stainless Steel in Supercritical CO₂ Containing H₂O and O₂