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Selective Oxidation of Methanol to Formaldehyde Using Modified Iron-Molybdate Catalysts

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Abstract

Methanol selective oxidation to formaldehyde over a modified Fe-Mo catalyst with two different stoichiometric (Mo/Fe atomic ratio = 1.5 and 3.0) was studied experimentally in a fixed bed reactor over a wide range of reaction conditions. The physicochemical characterization of the prepared catalysts provides evidence that Fe2(MoO4)3 is in fact the active phase of the catalyst. The experimental results of conversion of methanol and selectivity towards formaldehyde for various residence times were studied. The results showed that as the residence time increases the yield of formaldehyde decreases. Selectivity of formaldehyde decreases with increase in residence time. This result is attributable to subsequent oxidation of formaldehyde to carbon monoxide due to longer residence time.

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Authors and Affiliations

  1. Korea Institute of Energy Research (KIER), South Korea

    Tae Hwan Kim, B. Ramachandra, Jung Sik Choi, M. B. Saidutta, Ko Yeon Choo, Sun-Dal Song & Young-Woo Rhee

  2. Department of Chemistry, National Institute of Technology Karnataka, India

    B. Ramachandra, Jung Sik Choi, M. B. Saidutta, Sun-Dal Song & Young-Woo Rhee

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  1. Tae Hwan Kim
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  2. B. Ramachandra
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  3. Jung Sik Choi
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  4. M. B. Saidutta
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  5. Ko Yeon Choo
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  7. Young-Woo Rhee
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Kim, T.H., Ramachandra, B., Choi, J.S. et al. Selective Oxidation of Methanol to Formaldehyde Using Modified Iron-Molybdate Catalysts. Catalysis Letters 98, 161–165 (2004). https://doi.org/10.1007/s10562-004-7932-6

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