Waste gas treatment device and method for recovering epoxy chlorohydrocarbon

A waste gas treatment device, epoxy chlorocarbon technology, applied in the direction of separation methods, chemical instruments and methods, steam condensation, etc., can solve the problems of low recovery rate of epoxy chlorocarbons, excessive content of epoxy chlorocarbons, etc., to achieve improved adsorption Efficiency, reduction of epoxy chlorocarbon content, and improvement of liquid output rate

Active Publication Date: 2022-07-01
ZHEJIANG ZONE KING ENVIRONMENTAL SCI&TECH CO LTD
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Problems solved by technology

[0005] In order to solve the technical problems that the recovery rate of epoxy chlorocarbons in the existing epichlorofluorocarbon waste gas treatment device is low, and the p

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  • Waste gas treatment device and method for recovering epoxy chlorohydrocarbon
  • Waste gas treatment device and method for recovering epoxy chlorohydrocarbon
  • Waste gas treatment device and method for recovering epoxy chlorohydrocarbon

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[0061] The present invention will be described in detail below.

[0062] The content of epichlorohydrin in the high-concentration epichlorohydrin waste gas of the treatment object of the present invention is about 10-30 g / m3, the water content is about 15 g / m3, and the content of water and the content of epichlorohydrin are basically equal. Due to the characteristics of the decomposition of epichlorohydrin in contact with water, in order to improve the recovery efficiency of epichlorohydrin, it is very important to remove water from the waste gas; During the adsorption process, it can be completely adsorbed, so that the clean gas discharged into the atmosphere can meet the relevant emission standards. Therefore, the device of the present invention should not only meet the gas emission standard, but also ensure a high recovery rate of epichlorohydrin, which is a difficulty in the design of the present invention.

[0063] figure 2 Shown is the schematic diagram of the present...

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Abstract

The invention belongs to the technical field of waste gas treatment, and particularly relates to a waste gas treatment device and method for recovering epoxy chlorohydrocarbon. In order to solve the technical problems that an existing epoxy chlorohydrocarbon waste gas treatment device is low in epoxy chlorohydrocarbon recovery rate and the content of epoxy chlorohydrocarbon in purified gas is prone to exceeding the standard, a water removal unit is added on the basis of an existing device, it is guaranteed that epoxy chlorohydrocarbon does not make contact with water vapor, a hydrolysis reaction is avoided, the recovery efficiency of epoxy chlorohydrocarbon is guaranteed, and the recovery efficiency of epoxy chlorohydrocarbon is improved. Meanwhile, three-tank adsorption and two-tank standby are adopted, so that two clean adsorption tanks are always available in the adsorption process; in addition, two condensation systems are arranged, so that the condensation efficiency can be improved to the maximum extent, the organic matter transfer efficiency is improved, and the requirements of waste gas purification and emission are met.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a waste gas treatment device and method for recovering epichlorohydrin. Background technique [0002] According to the relevant standards of environmental management, more than a certain amount of epichlorohydrin in the exhaust gas cannot be discharged into the atmosphere. In addition, the exhaust gas containing high concentration of epichlorohydrin has a high recovery value, and its concentration is generally 10-30g / Therefore, some manufacturers recycle the epichlorohydrin in the exhaust gas before the exhaust gas is discharged, and at the same time, the purified gas can meet the relevant emission standards. [0003] like figure 1 As shown, for the waste gas containing high concentration of epichlorohydrin, the current treatment device adopts 3-stage adsorption tank + 1 standby desorption tank + 1 concentration tank + 1 set of condensation system. When...

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Application Information

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IPC IPC(8): B01D53/04B01D53/26B01D53/02B01D5/00
CPCB01D53/04B01D53/261B01D53/02B01D5/0036B01D2253/102B01D2253/116B01D2257/2064B01D2258/02B01D2259/40
Inventor 王宇峰戴晓霞徐军辉谭颖李小春王文婷卓未龙
Owner ZHEJIANG ZONE KING ENVIRONMENTAL SCI&TECH CO LTD
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