NOVELTY - A syn-gas production apparatus comprises a mixer for producing a feed stock of vaporized hydrocarbons and water vapor; a steam reformer having an inlet interconnected with the mixer and a syn-gas product outlet; a combustor interconnected with a fuel cell off gas outlet and operatively disposed with respect to the steam reformer to heat the steam reformer; and fuel cell producing off gas having an outlet interconnected with combustor for directing the flow of off gas from the fuel cell to the combustor.    USE - An apparatus for producing syn-gas, preferably hydrogen-enriched gas for powering a fuel cell for scalable power requirements (claimed), e.g. motor vehicle use.    ADVANTAGE - The apparatus uses a cycle that is convenient, safe and adaptable for small scale use and incrementally scalable to adjust to predetermined power requirements.    DETAILED DESCRIPTION - A syn-gas production apparatus comprises a mixer for producing a feed stock of vaporized hydrocarbons and water vapor; a steam reformer having an inlet interconnected with the mixer and a syn-gas product outlet; a combustor interconnected with a fuel cell off gas outlet and operatively disposed with respect to the steam reformer to heat the steam reformer; and a fuel cell producing an off gas having an outlet interconnected with the combustor for directing the flow of off gas from the fuel cell to the combustor. The steam reformer and combustor are separated within an enclosure. A wavyplate divides the enclosure into flow paths on each side. The wavyplate is coated on one side surface with a catalytically active steam reforming material and forms flow paths comprising longitudinally extending catalytically active channels in which laminar fluid flow from the mixer is effected with one side of the enclosure to comprise the steam reformer. The other surface of the wavyplate forms channels adjacent to and alternating with the sides of the channels opposite that side forming flow paths to effect laminar fluid flow of the off gas to comprise the combustor. An INDEPENDENT CLAIM is included for producing a syn-gas comprising    (A) mixing hydrocarbons and water vapor to provide a vaporized feed stock;    (B) directing a fluid flow of the feed stock into a steam reformer;    (C) combusting fuel cell off gas outlet in a combustor;    (D) providing separate fluid flow paths for the feed stock and the off gas in an enclosure; and    (E) allowing the syn-gas to exit from the steam reformer for further processing.    DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram of syn-gas production apparatus.