Rotary Concentration + RTO
Product Introduction: For low-concentration, high-volume VOC exhaust gases, the heat generated by the oxidative decomposition of VOCs is insufficient to sustain the RTO’s self-circulating operation, necessitating the consumption of additional fuel. The concentrated rotor–RTO incineration system utilizes a rotary wheel packed with zeolite as the adsorbent material to first adsorb the exhaust gas, then desorb it, and finally feed the desorbed, concentrated exhaust into the RTO for incineration. This approach significantly reduces the energy consumption associated with the combustion process during exhaust gas treatment. The process principle involves dividing a circular rotor filled with zeolite adsorbent material into three zones: the adsorption zone, the desorption zone, and the cooling zone. First, the low-temperature, low-concentration, high-volume exhaust gas is allowed to
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Keywords: Rotary Concentration + RTO
Rotary Concentration + RTO
Product Introduction
For low-concentration, high-volume VOC exhaust gases, the heat generated by the oxidative decomposition of VOCs is insufficient to sustain the RTO’s self-circulating operation, necessitating the consumption of additional fuel. The concentration rotor–RTO incineration system employs a rotor packed with zeolite as the adsorbent material: the exhaust gas is first adsorbed onto the rotor and then desorbed; the concentrated desorbed gas is subsequently fed into the RTO for incineration, thereby significantly reducing the energy consumption associated with the combustion process during exhaust gas treatment.
Process Principle
A rotary wheel packed with zeolite adsorbent material is divided into three zones: the adsorption zone, the desorption zone, and the cooling zone. First, low-temperature, low-concentration, high-volume exhaust gas is passed through the adsorption zone for adsorption; the treated, compliant gas is then discharged to the atmosphere. The wheel is then rotated so that the adsorption zone, now loaded with a certain concentration of VOCs, moves into the desorption zone. A small stream of fresh air, preheated by waste heat from the RTO at 180°C to 200°C, is blown in the reverse direction to strip the previously adsorbed VOCs, generating a small volume of high-concentration exhaust gas (with a concentration ratio of 10:1 to 20:1). This concentrated exhaust gas is then fed into the RTO for thermal oxidation, ultimately converting it into carbon dioxide and water. Next, the wheel continues to rotate into the cooling zone, where ambient outdoor air cools the zone that has just undergone high-temperature desorption, preparing it for more effective subsequent adsorption. After passing through the high-temperature desorption zone, this cooling air becomes hot air; it is further heated by waste heat recovered from the RTO to reach 180°C to 200°C before entering the next cycle of adsorption–desorption–combustion. This process repeats continuously in a closed loop.
Process Flow Diagram
Performance Features
● High adsorption and desorption efficiency converts VOC-containing exhaust gas with high air volume and low concentration into exhaust gas with low air volume and high concentration, thereby reducing the cost of downstream end-of-pipe treatment equipment.
● The zeolite rotor exhibits extremely low pressure drop during VOC adsorption, significantly reducing power consumption.
● The concentration ratio reaches 10–20 times, significantly reducing the size of downstream treatment equipment and lowering operating costs;
● The entire system features a modular design, achieving minimal footprint;
● The exhaust gas, after being concentrated by the rotor, can meet the national emission standards.
Scope of Application
①Can be widely used for spraying and coating applications in the automotive, vehicle, shipbuilding, and industrial product sectors;
Petroleum, chemical, ink, and dye industries;
Rubber and plastic, leather, adhesive tape, cables, enameled wire, electronics, and printed circuit board industries;
Printing, packaging, metal coil coating lines, laminating lines, tinplate printing and canning, and the printing and dyeing industries;
Coating and spraying industries for building materials, interior decoration, and furniture;
Pharmaceutical, food, and additive industries.
② Particularly suitable for the treatment of large-scale industrial facilities and warehouses that emit low-concentration, high-volume VOC-containing exhaust gases.
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