Catalytic conversion system.

摘要

The catalytic conversion system including a gas delivery conduit (802) having an outlet (808) of first cross-sectional flow area, a receiving conduit (804) having an inlet (810) of second cross-sectional flow area larger than said first cross-sectional flow area and spaced downstream of said delivery conduit outlet (808) and including a catalyst bed disposed therein, and an intermediate conduit defining a diffuser (806) having a flow surface (814) connecting said outlet (808) to said inlet (810). The diffuser flow surface (814) includes a plurality of downstream extending, alternating, adjoining, U-shaped troughs and ridges (816,818) forming a smoothly undulating portion of said flow surface (814). The undulating portion terminates as a wave-shaped outlet edge. At the wave-shaped edge there is a step-wise increase in cross-sectional flow area and said wave-shaped outlet edge is spaced upstream from said catalyst bed.