The deactivation study of Co–Ru–Zr catalyst depending on supports in the dry reforming of carbon dioxide

The deactivation study of Co–Ru–Zr catalyst depending on supports in the dry reforming of carbon dioxide

Carbon dioxide reforming of methane was performed over Co–Ru–Zr catalyst (0.4wt% Ru added, calcined at 400°C) with different supports (SiO2, γ-Al2O3 and MgO) in order to study their deactivation. The Co–Ru–Zr/γ-Al2O3 showed the highest activity at first, but severe deactivation was observed due to c...

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Veröffentlicht in:Journal of industrial and engineering chemistry (Seoul, Korea) 2014, 20(1), , pp.284-289
Hauptverfasser: Lee, Ji-Hye, You, Young-Woo, Ahn, Hong-Chan, Hong, Ji-Sook, Kim, Seong-Bo, Chang, Tae-Sun, Suh, Jeong-Kwon
Format: Artikel
Sprache:eng
Schlagworte:
Carbon
Carbon deposition
Carbon dioxide
Catalysts
Deactivation
Dry reforming
Gamma-alumina
Magnesia
Magnesium oxide
Methane
Reforming
Silica
Silicon dioxide
Support
화학공학
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Zusammenfassung:Carbon dioxide reforming of methane was performed over Co–Ru–Zr catalyst (0.4wt% Ru added, calcined at 400°C) with different supports (SiO2, γ-Al2O3 and MgO) in order to study their deactivation. The Co–Ru–Zr/γ-Al2O3 showed the highest activity at first, but severe deactivation was observed due to carbon deposition. Co–Ru–Zr/MgO exhibited low activity because of its low specific surface area. However, the high conversions could be obtained in Co–Ru–Zr/SiO2, and activity was kept almost constantly for 500h reaction. The characteristics of the catalysts, before and after the reaction, were investigated employing BET, XRD, TPR, TGA-DTA and TEM.
ISSN:1226-086X
1876-794X
DOI:10.1016/j.jiec.2013.03.036