Organic waste gas, also known as VOCs waste gas, its main components are hydrocarbons, halogenated hydrocarbons, oxyhydrocarbons and nitrogen hydrocarbons, which includes benzene, organic chlorides, Freon series, organic ketones, amines, alcohols, ethers, esters, acids and petroleum hydrocarbon compounds, etc., which require timely exhaust gas treatment in order to be discharged, and what are the methods of treatment of organic waste gas? Here with the Everest blue editorial take a look.
Treatment of organic waste gas - activated carbon adsorption
This technology can efficiently absorb benzene, alcohol, ketone, ester, petrol and other organic waste gas, and is suitable for large air volume and low concentration of waste gas management. The method is to use the high strength adsorption force of the activated carbon itself, combined with the role of the fan to adsorb the organic waste gas molecules, benzene, alcohol, ketone, ester, gasoline and other organic solvents have a very good adsorption effect of the waste gas
Applicable concentration: 0-300 mg/m3
Air volume: 1000-100000 m3/h
Processing efficiency: 80-90 per cent
Functional characteristics:
Adsorption efficiency up to 90%, large adsorption capacity, wide range of applications;
Convenient maintenance, without excessive manpower input requirements;
Large specific surface area, good selective adsorption, can deal with a variety of mixed waste gas at the same time;
Activated carbon has the characteristics of wide source and low price;
Easy to operate and safe.
Organic waste gas treatment method - zeolite rotor adsorption
This technology makes use of the specific pore size of zeolite for organic pollutants with the characteristics of adsorption and desorption ability, so that the original VOCs exhaust gas with large air volume and low concentration is converted into small air volume and high concentration gas through the concentration of zeolite rotor, which can reduce the operation cost of the back-end final treatment equipment.
Concentration: <2000 mg/m3
Applicable air volume: 5000-200000 m3/h
Processing efficiency: >93 per cent
Concentration times: 5-25 times
Functional characteristics:
High adsorption and desorption efficiency;
The zeolite rotor adsorption of VOCs produces a very low pressure drop, which can greatly reduce the power energy consumption;
Make the original high air volume, low concentration of VOCs organic waste gas treatment, converted into low air volume, high concentration of waste gas, concentration multiplier of 5-25 times, greatly reducing the specifications of the reprocessing equipment, lower operating costs;
The overall system adopts modular design, with small space requirements, and provides continuity and unmanned operation mode;
The system is automated, single button start, simple to operate, and can be used with a human-machine interface to monitor important operational data.
Treatment of organic waste gas-RTO (Regenerative Thermal Oxidiser)
The technology adopts thermal oxidation method to treat organic waste gas, suitable for large air volume, low concentration, complex composition of organic waste gas treatment, with ceramic regenerative bed heat exchanger to recover heat. Regenerative bed through the reversing valve alternating alternative direction, from the combustion chamber out of the high-temperature gas heat storage, and preheating into the regenerative bed of organic waste gas. Organic waste gas preheated to a certain temperature (≥760 ° C) in the combustion chamber oxidation reaction occurs, born harmless carbon dioxide and water, get purified.
Applicable concentration: ≤4000 mg/m3
Air volume: ≤150,000 m3/h
Processing efficiency: 95-99 per cent
Heat recovery rate: >95%
Functional characteristics:
High processing efficiency;
High heat recovery rate;
Suitable for low and medium concentration exhaust gas;
Can be combined with concentration system;
Moderate equipment volume;
No switching leakage topic.
Treatment method of organic waste gas-RCO (Regenerative Catalytic Combustion)
The technology is under the action of catalyst, the VOCs will be decomposed into CO2 and H2O under the low temperature premise of 200~400℃, which is one of the effective means to purify the hydrocarbon waste gas and eliminate the bad odour. The technology can also be applied to activated carbon adsorption concentration catalytic combustion system for replacing catalytic combustion and heater sector.
Applicable concentration: ≤10000 mg/m3
Applicable air volume: ≤50000 m3/h
Processing efficiency: 95-99 per cent
Heat recovery rate: 95-97 per cent
Functional characteristics:
High removal efficiency, no secondary pollution;
Wide range of application, can cope with multiple working conditions;
Conversion efficiency is not chaotic, the airflow distribution is fair, and the effectiveness of explosion-proof measures is guaranteed;
Low ignition temperature, flameless combustion, reducing open flame, saving energy while greatly improving safety.
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Guangdong Public Security Bureau No. 44190002006305
