Which industries have formulated VOCs emission standards

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I. source and process control

(1) in the petroleum refining and petrochemical industry, encourage the use of advanced cleaner production technology to improve the conversion and utilization efficiency of crude oil. Technical measures for VOCs containing waste gas pollution prevention and control from equipment and pipeline components, process exhaust, waste gas combustion tower (flare), waste water treatment and other processes include:

1 Formulate leakage detection and repair (LDAR) plan for equipment and pipeline components prone to leakage such as pumps, compressors, valves and flanges, regularly detect and repair them in time to prevent or reduce leakage, emission, dripping and leakage

2. The VOCs containing process exhaust discharged from the production unit should be recycled first, and those that cannot (or cannot be completely) recycled should be discharged up to the standard after treatment; In case of emergency, the vent gas can be introduced into the combustion tower (flare) and discharged after full combustion

3. VOCs containing waste gas generated during wastewater collection and treatment shall be discharged up to standard after collection and treatment

(2) in the coal processing and conversion industry, encourage the use of advanced cleaner production technology to achieve efficient and clean conversion of coal, focus on identifying and troubleshooting the prone locations of VOCs leakage in process units and pipeline components, and formulate measures to prevent VOCs leakage and deal with emergencies

(3) technical measures for VOCs Pollution Prevention and control during the storage, transportation and sales of oils (fuel oil and solvent) include:

1 Oil storage depots, gas stations and oil tank trucks should be equipped with corresponding oil and gas collection systems, and oil storage depots and gas stations should be equipped with corresponding oil and gas recovery systems

2. Oil (fuel oil, solvent, etc.) storage tanks should be highly sealed inner (outer) floating roof tanks. When fixed roof tanks are used, VOCs containing gas will be transported to recovery equipment through closed exhaust system

3. VOCs discharged by oil (fuel, solvent, etc.) vehicles (automobile oil tanker, railway oil tanker, oil tanker, etc.) during loading are collected and transported to the recovery equipment in a closed manner, and can also be returned to the storage tank or sent to the gas pipe network

(4) technical measures for VOCs Pollution Prevention and control in production industries with VOCs as raw materials such as coatings, inks, adhesives and pesticides include:

1 Encourage the production and sales of water-based, organic solvent-free and low organic solvent coatings, inks and adhesives that meet the technical requirements of environmental labeling products

2. The closed integrated production technology is encouraged, and the waste gas generated in the production process is classified, collected and treated

(5) technical measures for VOCs Pollution Prevention during the use of VOCs containing products such as coating, printing, bonding and industrial cleaning include:

1 Encourage the use of environmentally friendly coatings, inks, adhesives and cleaning agents certified by environmental labeling products

2. According to different coating processes, encourage the use of water-based coatings, high solid content coatings, powder coatings, ultraviolet curing (UV) coatings and other environmental friendly coatings; Promote the use of electrostatic spraying, spray coating, roller coating, dip coating and other coating processes with high efficiency; Outdoor spraying without VOCs purification and recovery measures shall be avoided as far as possible

3. Promote the use of water-based ink in the printing process, encourage the use of ultraviolet curing (UV) ink in the printing iron can industry, and encourage the use of pre coating technology in the book printing industry

4. Encourage the use of environment-friendly adhesives such as water-based and hot-melt adhesives in the bonding process of wood-based panels, shoemaking, leather products and packaging materials, and promote solvent-free compounding and coextrusion compounding technology in the production of composite films

5. Eliminate the production process with trifluoro trichloroethane, methyl chloroform and carbon tetrachloride as cleaning agents or solvents. Waste solvents generated during cleaning should be collected in a closed manner. Waste solvents with recycling value should be reused after treatment, and other waste solvents should be properly disposed of

6. During the use of VOCs containing products, waste gas collection measures shall be taken to improve the efficiency of waste gas collection, reduce the unorganized emission and escape of waste gas, and the collected waste gas shall be recovered or treated before reaching the standard

(6) technical measures for VOCs Pollution Prevention and control of living sources such as building decoration, clothing dry cleaning and catering oil fume include:

1 Promote the use of architectural coatings, low organic solvent wood coatings and adhesives that meet the technical requirements of environmental labeling products in the building decoration industry, and gradually reduce the use of organic solvent coatings

2. In the garment dry cleaning industry, we should eliminate the production and use of open dry cleaners, promote the use of closed dry cleaners equipped with compression mechanism cold solvent recovery system, and encourage the use of dry cleaners equipped with activated carbon adsorption devices

3. Encourage the use of clean energy such as pipeline gas, natural gas and electricity in the catering service industry; Advocate a diet with low oil fume, low pollution and low energy consumption

II. End treatment and comprehensive utilization

(1) encourage the recycling of VOCs in the process of industrial production and give priority to recycling in the production system

(2) for waste gas containing high concentration VOCs, condensation recovery and adsorption recovery technology should be preferred for recycling, and other treatment technologies should be used to achieve up to standard emission

(3) for the waste gas containing medium concentration VOCs, the adsorption technology can be used to recover the organic solvent, or the catalytic combustion and thermal incineration technology can be used to purify and discharge up to the standard. When catalytic combustion and thermal incineration technologies are used for purification, waste heat shall be recycled

(4) for the waste gas containing low concentration VOCs, adsorption technology and absorption technology can be used to recover the organic solvent and discharge it up to the standard; When it is not suitable for recycling, adsorption concentration combustion technology, biotechnology, absorption technology, plasma technology or UV advanced oxidation technology can be used for purification and emission

(5) waste gas containing organic halogen VOCs should be treated by non incineration technology

(6) odor gas pollution sources can be purified by biotechnology, plasma technology, adsorption technology, absorption technology, UV advanced oxidation technology or combined technology. In addition to meeting the emission requirements, measures such as high-altitude emission shall be taken to avoid disturbing residents

(7) promote the use of oil fume exhaust devices with oil mist recovery function in the catering service industry, and adopt high-efficiency oil fume and VOCs purification devices according to the scale, site and climatic conditions to meet the emission standard after purification

(8) strictly control the secondary pollution generated in the process of VOCs treatment. Inorganic waste gases such as sulfur, nitrogen and chlorine generated in the process of cata
lytic combustion and thermal incineration, as well as organic wastewater generated in the process of adsorption, absorption, condensation and biological treatment, should be treated and discharged up to the standard

(9) filter materials, adsorbents, catalysts and other purification materials that cannot be regenerated shall be treated and disposed of in accordance with the relevant provisions of the national solid waste management

III. encourage the R & D of new technologies, materials and equipment

encourage the R & D and promotion of the following new technologies, materials and equipment:

(1) cleaner production technologies that can reduce the formation and volatilization of VOCs in the process of industrial production

(2) rotary molecular sieve adsorption concentration technology, high-efficiency regenerative catalytic combustion technology (RCO) and regenerative thermal combustion technology (RTO), nitrogen cycle desorption adsorption recovery technology, high-efficiency water-based enhanced absorption technology, as well as other biological purification technologies and low-temperature plasma purification technologies for specific organic pollutants

(3) efficient adsorption materials (such as special-purpose activated carbon, high-strength activated carbon fiber, modified hydrophobic molecular sieve and silica gel), catalytic materials (such as broad-spectrum VOCs oxidation catalyst), efficient biological fillers and absorbers, etc

(4) VOC recovery and comprehensive utilization equipment

IV. operation and monitoring

(1) encourage enterprises to carry out VOCs monitoring by themselves, and timely and actively report the monitoring results to the local environmental protection administrative department

(2) the enterprise shall establish and improve the daily management systems such as operation and maintenance procedures and accounts of VOCs treatment facilities, and regularly repair and maintain all kinds of equipment, electrical and automatic control instruments according to the process requirements to ensure the stable operation of the facilities

(3) when terminal treatment is carried out by adsorption recovery (concentration), catalytic combustion, thermal incineration, plasma and other methods, emergency rescue plans for accident fire, explosion and other accidents of the unit shall be prepared, emergency rescue personnel and equipment shall be equipped, and emergency drills shall be carried out.

VOCs are produced in different industries, mainly including: Catering Industry (Beijing catering industry has limited emission standards for oil fume, particulate matter and non methane total hydrocarbon, which is the most detailed and strict city in China; furniture manufacturing industry (Guangdong is the first city to formulate emission standards for volatile organic compounds in this industry, followed by Tianjin and Beijing) Packaging and printing industry (all localities not only limit the emission concentration and emission rate of the four basic pollutant indexes of benzene, toluene, xylene and non methane total hydrocarbon, but also set the total concentration of toluene + xylene as the limiting index in Beijing, Tianjin, Hebei and Guangdong to replace the single emission concentration limit of toluene and xylene, which is more operable and practical) Shoemaking industry (according to the needs of local environmental management, only Zhejiang, Guangdong and Fujian have separately formulated the provincial /municipal VOC emission standards for shoemaking industry, which are more stringent than the national standards, and the limited types of VOCs are more, more detailed and more comprehensive) Electronic industry (only Beijing, Tianjin, Shaanxi and Sichuan have separately formulated provincial /municipal emission standards for volatile organic compounds in electronic industry according to the needs of local environmental management, which are more stringent than the comprehensive emission standard of air pollutants (GB16297-1996)), etc.

some industries that will cause gas emissions are basically formulated

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