Device for collecting and processing chlorinated hydrocarbon tail gas

Abstract

The invention relates to a device for collecting and processing hydrochloric ether tail gas, comprising five parts, i.e. an air filter, a dryer, an ACF (Activated Carbon Fiber) adsorption / desorption bed I, an ACF adsorption / desorption bed II, a catalytic combustion part and a tail discharging part, wherein all the parts are connected by valves or pipelines made of PVC (polyvinyl chloride) or stainless steel. The device has the advantages that novel adsorption material ACF is adopted to adsorb hydrochloric ether tail gas; when the ACF is almost in the state of adsorption saturation, hot air is introduced in for desorption; the desorbed hydrochloric ether tail gas is introduced into a catalytic combustion chamber for flameless combustion and is thoroughly purified; and hot air is cycled in a system to greatly lower the energy consumption. The invention has the characteristics of stable and reliable operation, investment saving, low operation cost, convenience for maintenance and the like and provides an ideal, economical and efficient practical process with a wide application prospect for intermittent or continuous collection and processing for hydrochloric ether tail gas with large air quantity, low concentration or unstable concentration.

Description

【Technical field】 [0001] The invention relates to the technical field of environmental protection equipment, in particular to a chlorinated hydrocarbon tail gas collection processor. 【Background technique】 [0002] The gaseous chlorinated hydrocarbon pollutants discharged or produced by industry are one of the important sources of air pollution, and the toxic and harmful chlorinated hydrocarbon tail gas poses a serious threat to human health and ecological security due to its "three-cause effect". In recent years, my country has achieved certain results in the control of toxic and harmful gaseous pollutants by accelerating legislation and increasing investment in scientific and technological research and development, but it still cannot meet the requirements of toxic and harmful industrial chlorinated hydrocarbon tail gas pollution with the characteristics of diversity and complexity. To meet the technical requirements of control, it is urgent to research and develop the toxi...

AI Technical Summary

Problems solved by technology

Its advantage is less investment, and its disadvantage is that it is only suitable for particularly high-concentration organic tail gas (hundreds of grams / m 3 above), therefore, it is only used as a pretreatment method; the absorption method is to contact the discharged chlorinated hydrocarbon tail gas with an absorbent, or take spraying, or take countercurrent to complete in the absorption tower, suitable for medium and high concentrations (2000mg / m 3 Above) and small and medium air volume (10000m 3 The treatment of low concentration and large air volume chlorinated hydrocarbon tail gas has low treatment efficiency. The biggest problem is that the post-treatment of the absorption liquid is troublesome, and it will bring secondary pollution and secondary treatment problems; the adsorption recovery method uses porous adsorption The material can adsorb and purify chlorinated hydrocarbon tail gas, especially the adsorption of low-concentration tail gas is the most effective, and the adsorption can reach ppm level. After adsorption, the organic matter is desorbed with water vapor, and condensed and recovered

But it is limited to high concentration (2000mg / m 3 above) single-component organic matter recycling

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