Phone: +86 15951568878
The Ministry of environmental protection encourages the promotion and application of advanced VOCs Pollution Control Technologies
2016-12-21584
In order to speed up the demonstration, application and promotion of advanced pollution control technologies, the Ministry of environmental protection has organized relevant units to select a number of advanced technologies for VOCs Pollution Control, forming the national catalogue of advanced pollution control technologies (VOCs prevention and control field) in 2016, which is now released.
According to the statistics of China air network, the national advanced pollution control technology catalog (VOCs prevention and control field) released this time has 18 technologies, including nitrogen filtration equipment in printing industry, solvent-free compound in packaging and printing, etc.
UV curing technology of nitrogen protection in printing industry
Process route and parameters: before entering the drying area, the substrate materials using UV ink in gravure printing process shall be purged with oxygen free gas to prevent the ink from contacting with air in the drying process, avoid adding antioxidant, and reduce VOCs use and emission from the source.
Main technical indicators: during the working process of all UV nine color and above gravure printing machine with nitrogen protection, the VOCs concentration in the workshop is the highest 0.15mg/m3 without exhaust.
Technical features: UV curing technology is adopted to solve the problem that UV ink can not be completely dried on gravure printing machine; it can not only reduce VOCs emissions, but also reduce the energy consumption in the drying process, so as to realize the advantages of full-automatic filtering equipment..
Scope of application: printing of tobacco, food, medicine and other packaging materials
Recovery technology of condensing solvent from adsorption of activated carbon and desorption of nitrogen
Process route and parameters: granular activated carbon is used to adsorb organic waste gas, high temperature nitrogen is used to desorb and regenerate the saturated activated carbon, and the solvent produced by desorbing is recovered after condensation and separation through automatic backwash filter.
Main technical indicators: VOCs purification efficiency ≥ 96% (if the first level adsorption fails to meet the standard, two levels shall be adopted).
Technical features: the inert gas nitrogen is used as the desorption carrier gas to effectively solve the safety problem of the traditional recovery process; compared with the water vapor regeneration, the water content of the recovered solvent is low and easy to purify.
Scope of application: packaging and printing, petrochemical, coating, pharmaceutical and other industries.
Adsorption and recovery technology of oil and gas activated carbon in the process of oil storage and transportation
Process route and parameters: the activated carbon is used to absorb oil and gas, which is desorbed by decompression after adsorption saturation, and the desorbed oil and gas are absorbed by spray or directly condensed in low-temperature condenser.
Main technical indicators: the oil and gas concentration at the outlet is less than 10g / m3, and the oil and gas recovery rate is more than 97%.
Technical features: oil and gas filter is used to recover special activated carbon with fast absorption and desorption rate; dry vacuum pump is used for decompression and desorption with good safety.
Scope of application: oil and gas recovery of product oil loading, oil and gas recovery of large and small breathing gas in storage tank during product oil storage.
Oil and gas membrane separation adsorption recovery technology in oil storage and transportation process
Process route and parameters: collect the intermittently discharged oil and gas in the storage and transportation process of petrochemical industry, then enter the absorption tower to recover 60% - 80% oil and gas through the buffer gas tank and pressurization. The oil and gas at the outlet of the absorption tower are enriched by the membrane module and then return to the inlet of the compressor. The low concentration oil and gas (about 5-15g / m3) after membrane treatment enters the pressure swing adsorption unit (VPSA), and the total non methane hydrocarbon concentration at the outlet is less than 120mg / m3.
Main technical indicators: VOCs recovery rate > 99.9%.
Technical features: the combination process of absorption membrane separation adsorption is adopted to improve the oil and gas recovery efficiency.
Scope of application: oil and gas recovery in petrochemical industry.
Treatment technology of asphalt waste gas absorption method in waterproof roll industry
Process route and parameters: first use the oil absorbent to absorb VOCs in the asphalt waste gas, and then return to the production process after absorption and enrichment as the auxiliary material for production. The low concentration VOCs waste gas after absorption and purification is treated by high voltage electrostatic demisting and activated carbon filtration equipment.
Main technical indicators: the purification efficiency of asphalt smoke can reach more than 98%, that of benzopyrene can reach more than 99%, and that of non methane total hydrocarbon can reach more than 90%.
Technical features: the coil material with flash point higher than 66 ℃ is selected as absorbent, and the absorbent can be reused directly after proper treatment.
Scope of application: treatment of asphalt waste gas in the production process of waterproof roll.
Fixed organic waste gas regenerative combustion technology
Process route and parameters: multi bed fixed regenerator is used. The preheated organic waste gas enters the combustion chamber for high temperature oxidation and decomposition. The purified high-temperature tail gas is discharged after being cooled by the thermal storage body and reaches the standard. The thermal storage body preheats the imported waste gas to save energy. The operating temperature of the equipment is about 800 ℃, and the resistance is ≤ 5000Pa.
Main technical indicators: when two beds are used, the VOCs purification efficiency is ≥ 90%; when three or more beds are used, the VOCs purification efficiency is ≥ 97%, and the heat recovery rate is ≥ 90%.
Technical features: the supporting structure of the regenerator is equipped with a gas filtration device to reduce the amount of waste gas retention when the valve is switched; the honeycomb ceramic is used as the regenerator, and the resistance of the device is small.
Scope of application: purification of high concentration VOCs in petrochemical, organic chemical, surface coating, packaging, printing and other industries.
Products center
Contact Us
In the oil, Sinopec, CNOOC, Sinochem Group, a non-standard equipment suppliers.
Brand-name products in Jiangsu," "National Customer Satisfaction Brand" and the honorary title of the winner.
Brand-name products in Jiangsu," "National Customer Satisfaction Brand" and the honorary title of the winner.
- E-mail：unite@unitefilter.com
- Address：No. 24 all the way,industrial park,new area,Wuxi
Copyright © 2018 Jiangsu Unite Filtration Equipment Co., Ltd. All rights reserved. 苏ICP备16037675号