Zeolite runner & catalytic combustion (RO/RTO) waste gas treatment technology the organic waste gas with large air volume and low concentration is concentrated by the runner to obtain the waste gas with small air volume and high concentration, and then enters the catalytic oxidation equipment for oxidation and decomposition. It is suitable for coating ink production, chemical raw material production, coating printing and other industries, especially for industries with long working hours, large exhaust emission and no recycling value

Zeolite runner & catalytic combustion (RO/RTO)
Treatment technology of coating organic waste gas from zeolite runner catalytic combustion
The organic waste gas with large air volume and low concentration is concentrated by the runner to obtain the waste gas with small air volume and high concentration, and then enters the catalytic oxidation equipment for oxidation and decomposition. It is suitable for coating ink production, chemical raw material production, coating printing and other industries, especially for industries with long working hours, large exhaust emission and no recycling value 
Working principle of the system
The waste gas is collected into the multi-stage filtration system. According to the actual situation, G4, F7, F9 and other materials are used for step-by-step filtration to remove dust and viscous substances.

Concentrate
When the air containing VOCs flows through the zeolite molecules, the zeolite acts as a molecular sieve, capturing the VOCs molecules that can be adsorbed, while the macromolecular substances let it flow through. When the adsorption area is close to saturation, it is rotated to the desorption regeneration area, and then the high temperature (180 ~ 220 ºC) air is used for desorption regeneration to form VOCs concentrated gas. After desorption and regeneration, the runner rotates to the cooling zone to cool down, and then continues the adsorption treatment.

Oxidation
VOCs concentrated gas flows through the catalytic bed, and the catalyst triggers the oxidative decomposition reaction at 250 ºC ~ 350 ºC. VOCs are decomposed into H2O and CO2.

Heat exchange
The heat released from oxidation reaction will make the gas temperature rise, and the high temperature gas will transfer the heat to the low temperature gas through the heat exchanger, which is used to heat the runner desorption gas and the inlet gas of CO furnace, so as to reduce the energy consumption required in the operation process of the system. If there is still surplus heat, it can also be used for heating other areas of the plant.

Discharge
The waste gas after wheel adsorption and oxidation decomposition is discharged from a unified chimney, which is generally 15m high and higher than the surrounding buildings

 

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