Integrated RCO catalytic oxidation system

The utility model relates to the field of heat recovery, in particular to an integrated RCO catalytic oxidation system. The heat exchanger comprises a shell, a heat exchange tube and an air distribution plate, the shell is in a parallelepiped shape, and the heat exchange tube and the air distribution plate are both arranged in the shell. The air distribution plate is arranged at the first air outlet in the shell, so that air uniformly flows out; the heat exchange tubes are divided into straight tube heat exchange tubes and fin-shaped heat exchange tubes, and the straight tube heat exchange tubes are arranged at the first air inlet; the fin-shaped heat exchange tubes are positioned at the rear parts of the straight tube heat exchange tubes, so that the heat exchange area is increased, and the heat exchange efficiency is improved; a gas inlet device and a gas outlet device of the heat exchange pipe are arranged at the bottom and the top of the shell correspondingly, so that gas enters the heat exchange pipe fro