VOCs emissions into the focus of gas control around the special action in full swing

2017-05-22

Volatile organic compounds (VOCs) emissions were included in the total control indicators during the "13th Five-Year Plan" period, and the State Council issued the "13th Five-Year Plan" Comprehensive Work Plan for Energy Conservation and Emission Reduction. At this point, all parts of the country began to declare war on this "invisible killer. Up to now, many places have started a new journey of haze control from the perspectives of policy, economy, monitoring, and law enforcement. After PM2.5, VOCs control has become another focus of air pollution prevention and control. In order to implement the VOCs governance tasks, my country has successively issued the "Action Plan for the Reduction of Volatile Organic Compounds in Key Industries" and the "Thirteenth Five-Year" Comprehensive Work Plan for Energy Conservation and Emission Reduction, etc.

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Spraying VOCs waste gas and treatment methods, responding to the key points of the inspector (VI)

2017-05-20

Organic waste gas treatment in automobile manufacturing industry VOCs and other waste gas produced in the coating process of automobile manufacturing process need to be controlled in the field to prevent it from spreading into the atmosphere and causing further pollution. Usually, the exhaust gas generated in the automobile coating process can be treated by the following methods. Activated carbon adsorption method This method is the use of activated carbon as a physical adsorbent, the use of its capillary condensation and intermolecular gravity, the harmful substances adsorbed on the surface of activated carbon, so that the exhaust gas purification. The advantages of this method are: the solvent can be recovered, the low concentration, low temperature exhaust gas can be purified, without heating. Disadvantages are: the need for pretreatment to remove paint mist,

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Spraying VOCs waste gas and treatment methods, responding to the key points of the inspector (V)

2017-05-20

5.1 automobile manufacturing industry 5.1.1 direct combustion incineration (TNV) technology Chongqing beiqi yinxiang automobile co., ltd. waste gas treatment project 1. waste gas characteristics waste gas comes from organic waste gas generated in the spraying process of automobiles, with an air volume of 20000mh, main components of formaldehyde and benzene compounds, and the concentration of waste gas is 1357 mg/m. 2. Technical Parameters Exhaust Temperature: 30 ℃ Ambient Temperature:-10~45 ℃ 3. Treatment Effect The project adopts direct combustion incineration (TNV) technology to treat organic waste gas. Since its stable operation in 2013, the treatment effect is shown in Table 5.1.1-1 below.

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Spraying VOCs waste gas and treatment methods, responding to the key points of the inspector (I)

2017-05-20

According to the Ministry of Environmental Protection, on May 16 and 2, there were 34 VOCs treatment problems. From May 1 to 15, 179 VOCs treatment was not in place. The phenomenon of VOCs treatment facilities not installed in painting process and other industries or abnormal operation of pollution treatment facilities was more prominent, and the phenomenon of "leakage" was serious. Surface Coating of Automobile Manufacturing Industry and Solution of Paint Exhaust Gas in 4S Store Part 1 Composition and Hazard of Paint Exhaust Gas 1-1 Formation of Jet Exhaust Gas and Main Composition Paint Technology is widely used in machinery, automobile, electrical equipment, household appliances, ships, furniture and other industries. Spray paint raw materials-paint coatings by non-volatile

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Spraying VOCs waste gas and treatment methods, responding to the key points of the inspector (II)

2017-05-20

Part 2 Relevant Standards China promulgated and implemented the GB16297 Integrated Emission Standard for Air Pollution in 1996, which limits the emission limits of 33 pollutants, including volatile organic solvents (VOC) such as benzene, toluene and xylene; in addition, the GB14554 "Emission Standard for Malodorous Pollutants" promulgated and implemented by China in 1993 stipulates the one-time maximum emission limit of 8 malodorous pollutants, the odor concentration limit of compound malodorous substances and the factory limit concentration limit of unorganized emission sources. HJ/T293 "Cleaner Production Standard Automobile Manufacturing" promulgated and implemented in 2006

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Spraying VOCs waste gas and treatment methods, responding to the key points of the inspector (III)

2017-05-20

The third part of the surface coating (automobile manufacturing industry) and 4S shop paint exhaust gas treatment method selection of organic waste gas treatment method, in general should be based on the following factors: the type of organic pollutants, organic pollutants concentration level, exhaust temperature of organic waste gas, organic waste gas emission flow, the level of particulate emission, the need to achieve the level of pollutant control. 3-1 regular treatment methods for spray paint waste gas treatment of the inapplicability of organic waste gas treatment methods are various, with different characteristics, commonly used water spray method, condensation method, absorption method, combustion method, catalytic method, adsorption method and so on. 1) water spray method: generally used for paint

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