Influence of low CO concentration on catalysed carbon deposition on 20Cr25Ni steel in CO2 environments containing ethene

Authors :: Brian J. Connolly
Clive Mowforth
Hugh Evans
Neal Smith
Yu-Lung Chiu
M.P. Taylor
Rengen Ding
Source :: Ding, R, Taylor, M P, Evans, H E, Mowforth, C W, Smith, N, Chiu, Y L & Connolly, B 2018, ' Influence of low CO concentration on catalysed carbon deposition on 20Cr25Ni steel in CO2 environments containing ethene ', Corros. Sci., vol. 143, pp. 56-64 . https://doi.org/10.1016/j.corsci.2018.08.015
Publication Year :: 2018
Publisher :: Elsevier BV, 2018.
Abstract: Carbon deposition on 20Cr25Ni steel at 700 °C has been investigated in CO2-based gases containing 0.7 vol%, 1.0 vol% and 1.4 vol% CO, each with ∼1000vpm C2H4, at 700 °C. Filamentary carbon deposits were formed at the two lowest CO contents but not at 1.4 vol% CO. TEM analyses have shown that the different CO levels change the propensity for deposition by altering the ratio of Ni:Fe in the nanometre sized catalytic particles produced during oxidation.

Subjects :: Materials science
020209 energy
General Chemical Engineering
chemistry.chemical_element
02 engineering and technology
General Chemistry
engineering.material
Catalysis
Corrosion
Carbon deposition
Chemical engineering
chemistry
0202 electrical engineering, electronic engineering, information engineering
engineering
General Materials Science
Nanometre
Austenitic stainless steel
Carbon
Deposition (chemistry)

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