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Operating Principle
Air containing VOCs to be treated is sent to the treatment area of the concentrated zeolite rotary drum after pre-filtration. In the treatment area, VOCs are removed by the adsorbent, and the air is purified and discharged from the treatment area of the concentrated activated carbon rotary drum. The VOCs adsorbed in the concentrated rotary drum are desorbed and concentrated (by 5 to 20 times) by heat treatment in the regeneration area. After being highly concentrated, the desorbed VOCs enter the heat exchanger for further heating and then are sent into the heating chamber. The gas is heated to the catalytic reaction temperature by the heating device. Then the organic gases are decomposed into carbon dioxide, water, and heat energy through the action of the catalyst in the catalytic bed. The gas after the reaction enters the heat exchanger and exchanges heat with the low-temperature gas, thus heating and preheating the inlet gas. In this way, the heating system only needs to compensate heating through the self-control system to achieve complete combustion, greatly saving energy and meeting national emission standards.
Characteristics Of Vocs Concentration Equipment
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High purification efficiency |
The theoretical removal rate of the zeolite rotary drum can reach 90% (except for special components) |
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High thermal desorption efficiency |
Organic compounds with boiling points below 140'C can be desorbed |
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Small footprint |
Compared with similar adsorption treatment equipment, it is relatively small |
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Fast adsorption and desorption |
Short adsorption time, easy saturation; high desorption efficiency, short cycle |
Tselection Criteria And Characteristics Of Co Catalytic Combustion
1. The exhaust gas must not contain ingredients that can poison or permanently deactivate the catalyst, such as chlorine, sulfur, halogens, heavy metals, etc.
2. Mixed waste gas entering the catalytic combustion equipment is less than 1/4 LEL explosion lower limit range.
3. The extreme temperature used in catalytic combustion is less than 600 ℃. High-heat substances and high-concentration gases need to be diluted to prevent the temperature of the reaction chamber from exceeding the limit and causing the catalyst to deactivate and unable to perform catalytic reduction reactions.
4. The gas entering the catalytic combustion process must not contain dust particles or oil mist that can block or cause flashback.
5. Characteristics of CO catalytic combustion: Low energy consumption, low resistance, high heat recovery efficiency, easy to operate.
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Low energy consumption |
The start-up preheating only takes 30-45 minutes, and the preheating temperature is generally 250-320°C. |
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Low resistance |
The heat exchanger structure is optimized, and the catalyst design has a low space velocity (10,000-15,000 h-1). |
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High heat recovery efficiency |
Compared with similar products, multiple specifications of corrugated panels are used, and the heat recovery efficiency is up to 70%. |
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High purification efficiency |
The heat exchanger adopts a new welding technology to ensure that there is no cracking and gas leakage at the welds during the alternation of hot and cold. The purifying efficiency of the body reaches 98%, and under the guarantee of the catalyst, the overall purification efficiency is above 98.5%. |
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Easy to operate |
Traditional electronic control or industrial controllers are used for control, After the parameter calibration is completed, the system can be started and stopped with one button, achieving unmanned monitoring. |
