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Ingeniería e Investigación

Print version ISSN 0120-5609


DEL RIO, José Daniel et al. Partial oxidation of methane to formaldehyde on MoO3, Fe2O3 and ferromolybdenum catalysts. Ing. Investig. [online]. 2007, vol.27, n.1, pp.19-24. ISSN 0120-5609.

One of the main challenges for catalysis has been direct methane conversion to useful products such as methanol and formaldehyde. Formaldehyde is currently produced by a three-step industrial process with syngas and methanol as intermediate products. MoO3, Fe2O3 and Fe2(MoO4)3 catalysts were used with four different Mo/Fe molar ratios (0.5, 1, 1.5, 2) in this work. The ferromolybdenum catalyst was prepared by coprecipitation. Pure oxides are more active; however they are not formaldehyde selective, but carbon oxide (CO, CO2) selective. The ferromolybdenum catalysts showed better HCHO selectivity at low conversions; the molybdenum oxide content did not show increased in catalytic activity. Increased reaction temperature did not increase formaldehyde selectivity.

Keywords : formaldehyde; methane; ferromolybdenum; ferric oxide; molybdenum oxide; partial oxidation.

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