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Introduction of zeolite molecular sieve runner adsorption concentration + thermal oxidation VOCs treatment process

With VOC emission restrictions, the promulgation of new environmental regulations has become increasingly strict. More and more air-volume, low-concentration, and complex VOCs purification treatment projects are facing one-time investment and large operating costs. Therefore, the molecular sieve adsorption concentration wheel + thermal oxidation combined VOCs treatment process is suitable for the purification of such VOCs.
 
   Compared with the adsorption and concentration of honeycomb activated carbon, zeolite molecular sieves have many advantages, such as safety factor, continuous operation, and small concentration fluctuations after desorption. More and more zeolite molecular sieve channels have become the mainstream treatment process for such projects. And processing equipment.
 
   Zeolite molecular sieve rotor adsorption concentration + catalytic combustion exhaust gas treatment system adopts adsorption-desorption-concentration three continuous temperature swing adsorption and desorption procedures to concentrate low concentration and high air volume organic waste gas to high concentration and small flow concentrated gas. Its equipment characteristics are suitable for handling large flows. , Low-concentration waste gas containing various organic components.
 
   The zeolite molecular sieve wheel adsorption sealing system is divided into a treatment zone and a regeneration zone. The adsorption wheel rotates slowly to ensure the continuity of the entire adsorption process. When exhaust gas containing volatile organic compounds (VOC) passes through the treatment zone of the rotor, the components of the exhaust gas are adsorbed by the adsorbent in the flow channel, the flow channel gradually becomes saturated, and the treated exhaust gas is purified and emptied. At the same time, in the regeneration zone, the high-temperature air passes through the flow channel saturated with adsorption, so that the exhaust gas adsorbed in the flow channel is desorbed and taken away by the high-temperature air, thereby restoring the adsorption capacity. Turn the wheel and achieve the effect of continuously removing VOC. The exhaust gas concentration is also increased to promote catalytic oxidation treatment. The high temperature desorption hot air (~220℃) comes from the high temperature flue gas generated in the catalytic combustion chamber. The concentrated exhaust gas produced by desorption is first exchanged with the high-temperature flue gas in the heat exchanger unit before entering the catalytic bed, and is degassed and degassed and enters the catalytic bed. In the catalytic bed, the temperature of the desorbed gas is raised to 300°C to carry out the catalytic oxidation reaction, and the organic components are oxidized into non-toxic and harmless CO 2 and H 2 O, and heat is released. The formed flue gas (<650°C) exchanges heat with the intake air when discharged, and is directly discharged into the chimney or separated to be used as desorption hot air. The continuous operation in which the adsorption wheel rotates slowly is very suitable for continuous operation and intermittent operation.