MACROKINETICS OF BIOGAS REFORMING FOR HYDROGEN PRODUCTION OVER Ni-Co BIMETALLIC CATALYST

Xu Junke; Qiang Ning

doi:10.19912/j.0254-0096.tynxb.2020-1220

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (3) : 36-41. DOI: 10.19912/j.0254-0096.tynxb.2020-1220

MACROKINETICS OF BIOGAS REFORMING FOR HYDROGEN PRODUCTION OVER Ni-Co BIMETALLIC CATALYST

Xu Junke^1,2, Qiang Ning²

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Abstract

Ni-Co bimetallic catalysts（Ni-Co/La₂O₃-γ-Al₂O₃） supported by commercial γ-Al₂O₃ modified with La₂O₃ were prepared by conventional incipient wetness impregnation for biogas reforming. A macro-kinetic study on biogas reforming in Ni-Co bimetallic catalyst has been investigated. The apparent reaction rate equations of CH₄ and CO₂ consumption and H₂ and CO production were suggested. The partial orders of reaction of CH₄ and CO₂ consumption and H₂ and CO production were solved by changing partial pressures of CH₄ and CO₂ in feed. The total reaction order is pseudo first-order. Apparent activation energy and preexponential factor of the catalysts were also calculated by varying the reaction temperature. The apparent reaction rate equations of CH₄ and CO₂ consumption and H₂ and CO production were deduced at the temperature from 500 to 900 ℃ in the normal atmospheric pressure.

Key words

nickel / cobalt / bimetallic catalyst / biogas reforming / hydrogen production / macrokinetics

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Xu Junke, Qiang Ning. MACROKINETICS OF BIOGAS REFORMING FOR HYDROGEN PRODUCTION OVER Ni-Co BIMETALLIC CATALYST[J]. Acta Energiae Solaris Sinica. 2022, 43(3): 36-41 https://doi.org/10.19912/j.0254-0096.tynxb.2020-1220

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