Xylene waste gas treatment method
A treatment method, xylene technology, applied in gas treatment, separation methods, chemical instruments and methods, etc., can solve problems such as threats to human health, low processing efficiency, and large equipment footprint
Inactive Publication Date: 2021-10-22
NANJING TONGCHENG ENERGY SAVING & ENVIRONMENTAI PROTECTION EQUIP RES INST CO LTD
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Problems solved by technology
The components of xylene are moderately toxic and carcinogenic. If the human body inhales high concentrations of xylene in a short period of time, it will cause central nervous anesthesia. In mild cases, dizziness, nausea, chest tightness, and fatigue may occur. In severe cases, coma or even Death due to respiratory and circulatory failure not only seriously threatens human health, but also causes serious damage to the ecological environment
At present, the treatment technology of p-xylene mainly has the problems of high cost, low treatment efficiency, easy to cause secondary pollution, and large area occupied by the instrument.
Method used
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[0018] From figure 1 It can be seen that the equipment used in the xylene waste gas treatment method of the present invention includes two purification towers, a first heat exchanger 13, a heat insulation layer 7, a second heat exchanger 8, a third heat exchanger 15, and a uv photolysis purifier 22. Activated carbon adsorption box 23.
[0019] The processing method of xylene waste gas of the present invention, its steps are as follows:
[0020] Step 1: The xylene waste gas to be treated is introduced into the purification tower through the first air inlet 1 at the lower part of the first purification tower, and the first sprayer 2 at the upper part of the first purification tower continuously sprays the compound downward through the packing layer below, The particles and capsules in the waste gas are separated and sink into the waste water at the bottom of the first purification tower. The absorption liquid is pressurized by the water pump from the bottom of the tower and sp...
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The invention relates to a xylene waste gas treatment method, which comprises: 1, spraying a compound through a purification tower, physically separating particles and capsules, and carrying out deodorization; 2, enabling a product to enter a heat exchanger again through a return pipe to absorb heat energy, and carrying out secondary deodorization by utilizing waste heat of the heat exchanger; 3, water-cooling gas, and enabling the water-cooled gas to enter a purification tower; 4, subjecting the waste gas to water atomization separation by a sprayer, and eliminating smoke generated in the waste gas by adopting a gas separation method; 5, carrying out deodorization again through a uv photolysis purification processor and an activated carbon adsorption box. An adopted device is high in treatment efficiency, small in occupied area, simple in structure, energy-saving, environment-friendly and free of secondary pollution.
Description
technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a treatment method for xylene waste gas. Background technique [0002] With the rapid development of the industrialized economy, chemical industries such as leather production, printing plants, automobile spray paint and various coating additives, various adhesives, and waterproof materials will produce a large amount of harmful gases in the production process, and the exhaust gas contains high concentrations of Xylene harmful gas. The components of xylene are moderately toxic and carcinogenic. If the human body inhales high concentrations of xylene in a short period of time, it will cause central nervous anesthesia. In mild cases, dizziness, nausea, chest tightness, and fatigue may occur. In severe cases, coma or even Death due to respiratory and circulatory failure not only seriously threatens human health, but also causes serious damage to the ecological environme...
Claims
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IPC IPC(8): B01D47/06B01D53/72B01D53/74B01D53/34
CPCB01D47/06B01D53/18B01D53/74B01D53/04B01D53/72B01D53/343B01D2257/7027
Inventor 戴亚洲吴俐俊
Owner NANJING TONGCHENG ENERGY SAVING & ENVIRONMENTAI PROTECTION EQUIP RES INST CO LTD