Fireside Corrosion in Oxy-fuel Combustion of Coal

Journal Article · Mon Nov 25 00:00:00 EST 2013 · Oxidation of Metals

DOI:https://doi.org/10.1007/s11085-013-9399-6· OSTI ID:1117666

Holcomb, Gordon R ^[1]; Tylczak, Joseph ^[1]; Meier, Gerald H ^[2]; Lutz, Bradley ^[2]; Jung, Keeyoung ^[3]; Mu, Nan; Yanar, Nazik M ^[2]; Pettit, Frederick S ^[2]; Zhu, Jingxi ^[4]; Wise, Adam ^[4]; Laughlin, David E. ^[4]; Sridhar, Seetharaman ^[4]

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1. National Energy Technology Laboratory
2. University of Pittsburgh
3. Institute of Industrial Science and Technology, Korea
4. Carnegie Mellon University

Oxy-fuel combustion is burning a fuel in oxygen rather than air for ease of capture of CO₂ from for reuse or sequestration. Corrosion issues associated with the environment change (replacement of much of the N₂ with CO₂ and higher sulfur levels) from air- to oxy-firing were examined. Alloys studied included model Fe–Cr alloys and commercial ferritic steels, austenitic steels, and nickel base superalloys. The corrosion behavior is described in terms of corrosion rates, scale morphologies, and scale/ash interactions for the different environmental conditions. Evidence was found for a hreshold for severe attack between 10^-4 and 10^-3 atm of SO₃ at 700ºC.

• Research Organization: National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States). In-house Research
• Sponsoring Organization: USDOE Office of Fossil Energy (FE)
• OSTI ID: 1117666
• Report Number(s): NETL-PUB-422
• Journal Information: Oxidation of Metals, Vol. 80, Issue 5; ISSN 0030--770X
• Publisher: Springer
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
01 COAL, LIGNITE, AND PEAT
Fireside corrosion  Oxidation  Oxy-fuel combustion  Boilers