The CO 2 reforming of methane with a thermal diffusion column (TDC) reactor by using an alumina tube coated with nickel-loaded carbon as the pyrogen, acting as a heated catalyst, was studied. Large surface area of carbon-coat support (400-500 m 2 /g) was obtained by carbonization of a novolak-type phenolic resin. Although the coated carbon showed a minor effect, Ni loading increased the activity of the pyrogen for the reaction. For example, by using 10 wt % Ni-loaded pyrogen at the surface temperature 1260 K, each conversion of methane and carbon dioxide exceeded 65% with upward feeding of 0.44 mmol/min (CO 2 /CH 4 ) 1). The downward feeding of reactant gas showed lower conversions but better stability of the catalytic action of the pyrogen. Performance of TDC reactor for CO 2 reforming of methane can be improved by the better preparation of the pyrogen to increase the activity and with downward feeding to reduce the carbon formation.
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