The overflow reaction process is as follows：

The reaction liquid flows down the inner wall of the glass tube through overflow from the upper part of the reactor to form a liquid film. The liquid film falls from top to bottom and is irradiated by a light source placed parallel to the center of the tube. The liquid flows down through the gas access unit and collects in the heat exchanger unit. The heat exchanger unit can be connected with the cooling or heating medium to control the temperature of the reaction. Through the heat exchanger, the reaction liquid is transferred into the reaction liquid storage bottle to restart the cycle.

Advantages and characteristics:

CEL- YPHC photocatalytic overflow reaction system, which is used to study the photocatalytic experiment of mobile phase, can be applied to the small-scale scale-up of photocatalytic experiment and provide relevant test data for the industrial production of photocatalysis. Especially in the new overflow reaction device, it can increase the time and area of the reaction solution in contact with light, improve the catalytic efficiency, and be more conducive to the scale-up of industrial production. The reaction device can also be modified timely according to the situation of the experiment. The device has been installed in many universities and research institutes, the experimental effect is obvious, and some results have been achieved.