Catalytic combustion exhaust gas treatment equipment
1. Process principle
The organic waste gas enters the activated carbon adsorption bed where the honeycomb activated carbon is placed, and fully contacts the honeycomb activated carbon. The strong adsorption of the activated carbon to organic substances is used to purify the gas, and the treated gas can reach the standard emission. When the activated carbon is saturated, the desorption system will automatically start to blow off the organic solvent from the activated carbon using hot air, and the activated carbon will be desorbed and regenerated. The high-concentration organic waste gas blown off is oxidized into CO₂ and H₂O under the action of the precious metal catalyst, and releases a large amount of heat.
2. Process flow chart
1. Process advantages
(1) The initial investment is relatively low.
(2) The technology is mature, the maintenance cost is low, and the scope of application is wide.
(3) Activated carbon is recycled and reused to reduce purchase costs, hazardous waste treatment costs and labor costs.
(4) Multiple activated carbon adsorption equipments share a set of online catalytic combustion equipment, with low investment.
(5) Easy to operate, automatic control can be realized when the equipment is working.
(6) It has a wide range of applications and can be used for the purification of organic waste gas in machinery, chemical, coating, plastic, motor, rubber, cable, printing, electrical and other industries.
2. Features of catalytic combustion method
Catalytic oxidation is a typical gas-solid phase catalytic reaction, and its essence is the deep oxidation of active oxygen. In the process of catalytic decomposition, the role of the catalyst is to reduce the activation energy, and at the same time, the surface of the catalyst has an adsorption effect, so that the reactant molecules are concentrated on the surface to increase the reaction rate and speed up the reaction. With the help of a catalyst, the organic waste gas can undergo flameless combustion at a lower decomposition temperature, and be oxidized and decomposed into CO₂ and H₂O, while releasing a large amount of heat energy. The reaction process is:
The main features are:
(1) Low ignition temperature, saving energy;
(2) Wide application range;
(3) High treatment efficiency, no secondary pollution.
Related product technology
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