Waste gas purification method

A waste gas purification and waste gas technology, which is applied in the direction of chemical instruments and methods, combustion methods, separation methods, etc., can solve the problems of less purification methods of organic waste gas and acid waste gas, environmental impact, corrosive or irritating odor and carcinogenicity, and achieve absorption The effect of outstanding effect, quick response, and lightening of workload

Inactive Publication Date: 2018-10-19
苏州爱源环境科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

These gases often have corrosive or irritating odors or carcinogenic properties, so discharging them into the atmosphere will have a great impact on the environment
[0003] At present, there are many studies on the removal of organic waste gas, but there are few purification methods that can simultaneously remove organic waste gas and acid waste gas

Method used

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Embodiment Construction

[0037] The present invention will now be further described in detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

[0038] like Figure 1-3 As shown, an exhaust gas purification method is characterized in that: comprising:

[0039] (1) Exhaust gas pretreatment

[0040] The exhaust gas first passes through the heating device 1, and the gas is heated to 50-80 °C, which not only effectively increases the reaction activity of the exhaust gas molecules, thereby significantly promoting the reaction of the exhaust gas with the absorption treatment liquid after entering the exhaust gas washing tower, without excessively increasing the energy. consumption. At the same time, after the exhaust gas is heated, the upward trend of the gas increases, thereby reducing t...

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Abstract

The invention relates to a waste gas purification method. The waste gas purification method is characterized by comprising four steps of pre-treating waste gas, washing acid gas and absorbing, adsorbing an organic component through activated carbon, and desorbing and catalytically combusting the activated carbon. According to the method provided by the invention, before the waste gas enters a waste gas washing tower, the waste gas is subjected to heating treatment, and reaction between the waste gas and an absorption treatment solution is facilitated so that the purification effect is improved. According to the method provided by the invention, before the waste gas enters an activated carbon adsorption tower, the waste gas is subjected to drying and temperature control treatment; after thewaste gas enters the activated carbon adsorption tower, the waste gas is subjected to dehumidification treatment through a dehumidification layer, and the working temperature of the activated carbonis stabilized at 30 to 40 DEG C, so that the waste gas keeps dry and the temprature of a working environment is controlled to 30 to 40 DEG C, and furthermore, the effect of adsorbing the organic component in the waste gas through the activated carbon is improved and the waste gas purification effect is improved.

Description

technical field [0001] The invention relates to the field of waste gas treatment, in particular to a method for purifying waste gas containing both acidic substances and organic substances. Background technique [0002] Production and testing in the chemical and pharmaceutical industries generate a large amount of waste gas, and there are two main types of waste gas. One is acidic waste gas represented by chlorine, hydrogen sulfide, nitrogen dioxide, hydrogen chloride, sulfur dioxide, etc.; the other is organic waste gas represented by methanol, ethanol, benzene, toluene, xylene, formaldehyde, and organic naphthalene. These gases tend to have corrosive or pungent odors or carcinogenic properties, so releasing them into the atmosphere would have a significant impact on the environment. [0003] At present, there are many studies on the removal of organic waste gas, but there are few purification methods that can simultaneously remove organic waste gas and acid waste gas. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/00B01D53/18B01D53/26B01D53/02F23G7/07
CPCB01D53/005B01D53/02B01D53/1456B01D53/18B01D53/185B01D53/26B01D2253/102B01D2257/70B01D2258/02B01D2259/4009F23G7/07
Inventor 王小莉纪新运朱磊雷
Owner 苏州爱源环境科技有限公司
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