VOC adsorption recovery device: With the rapid development of the petrochemical industry, more and more processing plants are emerging around the world, and environmental protection departments have begun to strictly review the volatile organic compounds (VOCs) emitted into the air. VOCs are actually different kinds of petrochemicals and are the most common air pollutants emitted by chemical, oil refining, petrochemical and related industries, and one of the main sources of atmospheric photochemical reactions. Therefore, with the continuous improvement of people's environmental awareness, the regulations on VOC emission control have become more and more strict. In this case, every industry or business that emits VOCs must adopt appropriate VOC control measures. Thankfully, there are many technologies for controlling VOC emissions, each with its own specific advantages and limitations. Environmental and Health Issues of Industrial VOCs Industrial VOCs are generally at very low hazardous concentrations, but their health effects are increasing over time. Worldwide, the media regularly reports the growing number of asthma and other respiratory diseases affecting the physical health of young and old. While there are many causes of these diseases, it is generally recognized that certain VOCs have serious negative effects on human health in several ways. Studies have shown that alcohols, aromatic hydrocarbons and aldehydes can irritate the mucous membranes and upper respiratory tract. In addition, many VOCs have been shown to be carcinogens or potential carcinogens, such as benzene, trichloroethylene, and formaldehyde. The promulgation of laws and regulations has long led to new breakthroughs in technological research and development. At present, China is facing increasingly serious environmental problems, and these problems have a great impact on people's health. Although the Chinese government has made great efforts to control pollution and continuously lowered the emission limits of VOC, CO2 and NOx, the large-scale combustion industry still accounts for 40% of the total emissions. Therefore, VOC emissions from large combustion plants in chemical, oil refining, petrochemical and related industries can be controlled through a large number of published and upcoming laws and regulations. These standards, issued by the Ministry of Environmental Protection, stipulate the emission limits of water pollutants and air pollutants for petroleum refining enterprises, petrochemical enterprises and production facilities, as well as their supervision and management requirements. In addition, the Chinese government also encourages various regions to implement the upcoming standards as soon as possible. It can be seen that the successive introduction of relevant laws and regulations has brought unprecedented new challenges to technological research and development and breakthroughs. It has to be said that there are many different technologies that can be used to reduce or eliminate solvent emissions from waste gas streams, such as destruction and recycling, depending on the recovery value and concentration of the solvent. Such improvements include: changing raw materials to first reduce VOCs entering the process; changing operating conditions to minimize VOC formation; and adjusting equipment to minimize the chance of VOCs entering the environment. By following good design practices and equipment maintenance procedures, we can minimize and ultimately reduce VOC leakage from valves, sealed pumps (using mechanical seals), and other process equipment. Mechanical seals can be used where appropriate, while VOC losses in storage tanks, product transfer areas and other process areas can also be minimized through methods such as vapor recovery systems and double seals. In addition, depending on the type of process and equipment employed, regular leak
testing should be performed. The conversion rate of VOC can be as high as 99.9% of VOC oxidation technology. The VOC adsorption and recovery device can directly burn VOC in a manner similar to a regenerative incinerator. On the other hand, there is a significant difference: the catalytic system can operate at lower temperature (generally about 300-500 ℃). Because it reduces combustion energy requirements by as much as 40% through the catalyst, resulting in significant fuel and operating cost savings. The conversion rate of VOCs can be as high as 99.9%, far exceeding the requirements of current global environmental regulations. In addition to providing these unique advantages for high temperature combustion equipment, the new catalytic oxidation system also takes up much less space than regenerative systems.
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