NOVELTY - A reactor combines two heterogenic processes which are an endothermic catalytic process and an exothermic catalytic reaction. Reactants flow through a thin horizontal, porous catalytic reforming disc joined to an oxidation catalytic layer. The layer has inlets for fuel and oxidants and outlets for the product gas. The oxidation catalytic layer has a flat side facing a porous dosing disc.    USE - Fuel cell for generation of hydrogen and electricity.    ADVANTAGE - The assembly achieves a generally homogenous mixture of oxygen and reformed product over the oxidation catalytic layer. Further claimed is that the assembly generally prevents a reverse reaction.    DETAILED DESCRIPTION - A reactor combines two heterogenic processes which are an endothermic catalytic process and an exothermic catalytic reaction. Reactants flow through a thin horizontal, porous catalytic reforming disc (1, 3) joined to an oxidation catalytic layer (2, 4). The layer has inlets (6) for fuel and oxidants and outlets for the product gas. The oxidation catalytic layer (2, 4) has a flat side facing a porous dosing disc (7, 9). Reformed product emerges homogeneously from the oxidation catalytic layer (2, 4), and the oxidation agent emerges homogeneously from the dosing disc (7, 9) face. A CO oxidation zone (2, 4) is thermally linked to a reforming zone (1, 3), and the oxidant is discharged over the reforming catalytic disc (1, 3), through which the educt flows at right angles. The reforming catalytic disc (1, 3) occupies the oxidation catalytic layer (2, 4) surface. The dosing disc (7, 9) is hollow and has a gas-tight rim and a porous, flat surface. Oxidant flows at right angles to the oxidation catalytic layer in contact with the dosing disc. Two reforming catalytic layers are positioned either side of a fuel chamber (6). The stack has a dosing disc (7, 9) each side. Also claimed is a manufacturing process.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross sectional view of the cell.    Reforming catalytic disc (1, 3)    oxidation catalytic layer (2, 4)    Component (5)    inlet (6)    Component (7)    Component (8)    Component (9)    Component (10)    Component (11)    Component (12)    product gas outlet (13, 14)    stack direction (S)