Fischer-Tropsch synthesis of hydrocarbons, e.g. for use in motor fuel production, uses catalytic plates with catalyst compartment containing catalyst supported on silicon carbide foam

Conversion of a mixture of hydrogen and carbon monoxide into a hydrocarbon effluent involves passing the mixture through catalytic plate(s) (1) comprising a catalyst compartment (12) which (a) has thickness (e) of at least 15 mm, (b) is bounded by two surface plates (2a, 2b) and (c) contains catalytic material consisting of a catalyst supported on a silicon carbide foam. Independent claims are included for: (1) a catalytic plate (1) comprising a catalytic compartment (12) with a thickness (e) of at least 15 mm, containing a catalytic material (3) (consisting of a catalyst supported on a silicon carbide foam) in contact with a first surface part (2a); (2) the preparation of the catalytic plate, by fixing the catalytic material on the first surface part to form the catalytic compartment; (3) a variant of the production of the catalytic plate, by assembling surface parts (2a, 2b, 4a, 4b) then inserting the catalytic material between the surface parts to form the catalytic compartment; (4) a reactor comprising multiple catalytic plates as above, the spaces between the plates being filled with heat exchange fluid; and (5) the use of the claimed reactor for the conversion of a mixture of hydrogen and carbon monoxide into a hydrocarbon effluent. L'invention concerne un procédé de transformation d'un mélange d'hydrogène et de monoxyde de carbone en effluent hydrocarboné, comprenant une étape de passage du mélange dans au moins une plaque catalytique (1) comprenant un compartiment catalytique (12) délimité par deux parties surfaciques (2a, 2b), l'épaisseur (e) du compartiment catalytique (12) étant supérieure ou égale à 15 mm, et le compartiment catalytique (12) contenant un matériau catalytique (3) comprenant un catalyseur supporté sur une mousse de carbure de silicium. L'invention concerne également des plaques catalytiques utiles pour la mise en oeuvre de ce procédé, un procédé de fabrication de ces plaques catalytiques, et un réacteur comportant de telles plaques.