Catalytic reactor and heat exchange device for use in fuel processing system, has portion of turbulator, which is free of catalytic layer to delay catalytic reaction until reaction fluid reaches location spaced downstream from inlet

摘要

A catalytic reactor/heat exchange device includes reaction flow channels (20) formed by plate shaped turbulators (30). The turbulators include a catalytic layer coating to initiate catalytic reaction at a location spaced downstream from a reaction flow inlet. An initial portion (40) of each turbulator, from the leading edge (42) of the turbulator to the location, is free of the catalytic layer to delay catalytic reaction until reaction fluid flow reaches the location.