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Combined purification method for effluvial exhaust air

A waste gas purification and odor technology, which is applied in chemical instruments and methods, separation methods, and dispersed particle separation, etc., can solve problems such as the inability to meet the continuous operation requirements of the catalytic combustion device and the unfavorable stable operation of the catalytic combustion device, and achieve high cost and operation. The effect of low cost and simple process flow

Active Publication Date: 2007-10-31
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

However, since the desorbed concentrated gas after adsorption treatment is generally produced intermittently, it cannot meet the continuous operation requirements of the catalytic combustion device, and the concentration of organic matter in the desorbed concentrated gas changes greatly with the desorption process, which is not conducive to the catalytic combustion device. stable operation of

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  • Combined purification method for effluvial exhaust air

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Embodiment 1-12

[0026] Collect the waste gas produced by the sewage biochemical aeration tank and sludge aging tank of a petrochemical enterprise, and use the sewage discharged by the enterprise for washing treatment in the packed tower. The gas-liquid contact time is 2-5s, and the washing intensity is 3-7L washing liquid / M 3 exhaust gas. The exhaust gas after washing is adsorbed by activated carbon, and the adsorption process uses two adsorbers to switch operations. When the concentration of odor components in the exhaust gas is higher than GB 162976-1996 "Integrated Emission Standards for Air Pollutants" and GB14554-93 "Emission Standards for Odor Pollutants" , local emission standards and other relevant limit values, switch (the specific operation can be determined according to the needs). The volume space velocity of the adsorption process is 1500hr -1 . Desorption regeneration adopts steam regeneration at 250°C, and the space velocity is 50hr -1 . Or use catalytic combustion exhaust ...

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Abstract

The invention relates to the comprehensive purification method for foul odor. It categorizes the foul odor from various sources by VOC density. Low density VOC waste is cleaned first, the absorption purification to achieve tail gas emission standard, sewage treatment for the cleaned waste water. The desorption resurgent gases is mixed with high density VOC waste for density average, burning and purification. It can effectively purify waste gases from various sources and features, with simple process, good purification effect, low energy consumption and easy operation.

Description

technical field [0001] The invention relates to a comprehensive purification method of malodorous waste gas, which is a comprehensive purification treatment method for different types of malodorous waste gas produced by sewage treatment systems, especially the synthesis of various types of malodorous waste gas produced by sewage collection, transportation and treatment systems of enterprises such as oil refineries. Purification treatment method. Background technique [0002] In oil refining, chemical and other enterprises, there are many production units or facilities that will produce foul-smelling exhaust gas, which has become an important source of pollution for such enterprises. Odor pollution sources in oil refining, chemical and other enterprises mainly include storage tank volatilization and sewage treatment system escape. The composition and concentration of the malodorous exhaust gas vary greatly with the different pollution sources, and there are great changes wit...

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Application Information

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IPC IPC(8): B01D53/86B01D53/04
Inventor 刘忠生陈玉香方向晨王海波王新郭兵兵
Owner CHINA PETROLEUM & CHEM CORP
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