Activated carbon adsorption and desorption concentration RCO
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Activated carbon adsorption and desorption concentration RCO
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Activated carbon adsorption and desorption concentration RCO
The catalytic combustion process takes place in a catalytic combustion device. Organic waste gas is first preheated to 200-400℃ through a heat exchanger, then enters the combustion chamber. When passing through the catalyst bed, the hydrocarbon molecules and oxygen molecules in the mixed gas are adsorbed and activated on the surface of the catalyst. Because surface adsorption reduces the activation energy of the reaction, hydrocarbons and oxygen molecules rapidly oxidize at lower temperatures, producing carbon dioxide and water.
Technical Principle
With the help of a catalyst, organic waste gas can undergo flameless combustion at a lower ignition temperature, and oxidize and decompose into CO2 and H2O, releasing a large amount of heat at the same time. The low ignition temperature and fast reaction rate save energy. In the catalytic combustion process, the catalyst plays a role in reducing the activation energy of the reaction between VOCs molecules and oxygen molecules, and changing the reaction pathway. The treatment efficiency is high, and the emission of secondary pollutants and greenhouse gases is low.
Applicable Operating Conditions
Catalytic combustion can handle almost all hydrocarbon organic waste gases and odorous gases, and is suitable for a wide range of VOCs concentrations. For low-concentration, high-flow, multi-component VOCs waste gases with no recovery value, catalytic combustion is an economical and reasonable treatment method.
Technical Characteristics
The purification rate of VOCs waste gas treated by catalytic combustion is usually above 95%, and the final products are mainly CO2 and H2O. Due to the low temperature of catalytic combustion, the generation of NOx is greatly reduced. The amount of CO2 emitted by auxiliary fuel consumption accounts for a large proportion of the total CO2 emissions. The reduction in auxiliary energy consumption obviously reduces the emission of greenhouse gas CO2.
Process Flow Diagram
Suitable for handling large air volume and low concentration waste gas conditions;
Concentration factor up to 10-30 times;
Spraying, coating, packaging printing, chemical industry and other industries with large air volume and low concentration waste gas treatment.
Common oxidation units for molecular sieve rotary equipment: regenerative thermal oxidation (RTO) and catalytic oxidation (CO), selected according to different working conditions.
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