1.VOCs waste gas treatment equipment?
VOCs are absorbed by low volatile or nonvolatile solvents, and then separated according to the difference of physical properties between VOCs and absorbent. VOCs waste gas treatment equipment is divided into adsorption, adsorption, combustion and catalytic purification, photocatalysis and biological purification, low temperature plasma and other treatment processes. The equipment adopts various technologies to recover or remove harmful components to reduce industrial emissions, thus protecting the environment and purifying waste gas. ?
2.PP spray tower waste gas treatment equipment?
Working principle of spray tower: When the gas enters the purification tower tangentially from the inlet below the tower body, and then uniformly rises to the first-class packing absorption section through the flow equalization section, the acidic substances in the gas phase react with the alkaline substances in the liquid phase, and the acid gases that are not completely absorbed continue to rise to the first-class spray section. In the spray section, the absorption liquid is sprayed from the evenly distributed nozzles at high speed, forming countless tiny droplets, which are completely mixed with the gas and the chemical reaction continues. Then the acid gas rises to the second-stage packing section, and the spray section undergoes an absorption process similar to that of the first stage. ?
When the density of the second stage and the first stage are different, the concentration range of the absorbed acid gas is also different, and the injection pressure is also different. The contact process between spraying section and packing section is also a heat and mass transfer process of materials. By controlling the flow and storage time of the empty tower, the integrity and stability of the whole process are ensured. For some acidic gases with poor chemical activity, it is necessary to add a certain amount of surfactant to the absorption solution. The top of the tower is a demisting section to remove the liquid droplets absorbed in the gas, and the treated clean air enters the atmosphere from the exhaust pipe at the upper part of the purification tower. ?
3. Catalytic combustion waste gas treatment equipment?
Catalytic combustion is a typical gas-solid catalytic reaction. With the help of the catalyst, catalytic combustion reduces the activation energy of the reaction, at the same time, reactant molecules are enriched on the surface of the catalyst, which improves the reaction rate, makes it burn flameless at a lower ignition temperature (200~300℃), oxidizes and decomposes into CO2 and H2O, and releases a lot of heat. ?
The above are the main types of waste gas treatment equipment, so I will share them here. Friends who want to know more about waste gas treatment equipment can consult.