VOCs (volatile organic compounds) waste gas treatment method

A technology of waste gas treatment and waste gas, which is applied in the field of VOCs waste gas treatment, can solve the problems that the processing limit of the treatment system and method is difficult to meet the requirements of emission standards, residual VOCs, and discharge that cannot meet the standards, so as to meet the requirements of energy saving and emission reduction, low energy consumption of equipment, The effect of improving production efficiency

Active Publication Date: 2014-10-08
FUJIAN LEBEN ENVIRONMENTAL PROTECTION TECH & EQUIP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In terms of pollution control technologies through various removal of volatile solvents (such as condensation method, adsorption method, absorption method, combustion method, biological method, membrane separation method, plasma method, photocatalytic oxidation method), although the treatment systems and methods continue to Renewal, the removal rate or recovery rate is constantly improving (some methods are as high as 98%), but there is al

Method used

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  • VOCs (volatile organic compounds) waste gas treatment method
  • VOCs (volatile organic compounds) waste gas treatment method
  • VOCs (volatile organic compounds) waste gas treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Please refer to figure 1 As shown, the VOCs exhaust gas treatment system of this embodiment 1 includes an organic treatment device 2, a fan 3, and a tail gas recovery pipeline 4 for removing VOCs. The organic treatment device 2 is an existing absorption recovery method, adsorption recovery One or a combination of multiple devices used in the method, condensation recovery method, incineration method, catalytic incineration method, plasma method or biological method.

[0023] The organic matter processing device 2 and the tail gas recovery pipeline 4 are connected in sequence, and the inlet end of the organic matter processing device 2 and the outlet end of the tail gas recovery pipeline 4 are respectively connected to the VOCs waste gas source 5, the VOCs waste gas source 5, organic matter The processing device 2 and the tail gas recovery pipeline 4 form a closed circulation loop (exhaust gas circulation system), and the fan 3 is arranged on the closed circulation loop.

[00...

Embodiment 2

[0034] When the organic matter processing device 2 is an adsorption recovery device including an adsorption tank, and the organic matter processing method is to adsorb VOCs:

[0035] Please refer to figure 2 As shown, on the basis of Example 1, the VOCs waste gas treatment system of Example 2 also includes an adsorption system, a desorption system, a condensation system and a separation system of the adsorption recovery method, and the adsorption tank dehumidification of the second fan 10, Cooling system.

[0036] The second fan 10 is connected to the adsorption tank of the organic matter processing device 2, and the adsorption tank is provided with a cooling and dehumidifying channel, one end of the cooling and dehumidifying channel is connected to the second fan 10, and the other end of the cooling and dehumidifying channel is connected to the outside through.

[0037] Please continue to refer figure 2 As shown, the VOCs exhaust gas treatment method of this embodiment 2 is as fo...

Embodiment 3

[0042] When the organic matter treatment device 2 is an organic matter treatment device 2 used to absorb or incinerate VOCs, and the organic matter treatment method is to absorb or incinerate VOCs:

[0043] Can be used as figure 1 For the VOCs exhaust gas treatment system shown, the treatment method can refer to the first embodiment.

[0044] The difference between Embodiment 3 and Embodiment 2 is that the second fan 10 is not included.

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Abstract

The invention relates to a VOCs (volatile organic compounds) waste gas treatment method. The treatment method comprises the following steps: a step of treating organic matters: carrying out organic matter treatment on waste gas generated by a VOCs waste gas source, wherein the treatment for the organic matters is to remove VOCs in the waste gas by adopting one or a combined method of an absorption recycling method, an adsorption recycling method, a condensation recycling method, a burning method, a catalytic burning method, a plasma method and a biological method; a step of recycling the tail gas: returning the waste gas after the organic matter treatment to the VOCs waste gas source. By adopting the VOCs waste gas treatment method, zero emission of VOCs waste gas is realized, the technical difficulty in realizing zero emission of VOCs waste gas, which needs to be solved but still can not be solved by environment protection equipment manufacturing enterprises for years, can be solved, and the environmental pollution caused by the emission of the VOCs waste gas can be thoroughly eliminated; the entire treatment process is simple and easy to operate, the treatment efficiency is high, few equipment is needed, the energy consumption of equipment is small, the requirement of modern enterprises on energy conservation, emission reduction and production effectiveness improvement can be well satisfied, and great significance on saving the energy and reducing the cost can be achieved.

Description

Technical field [0001] The invention relates to the technical field of environmental protection treatment, in particular to a method for treating VOCs waste gas. Background technique [0002] As we all know, PM2.5 (fine particulate matter) and haze weather have an increasingly serious impact on people’s lives and health, and VOCs (volatile organic compounds) are one of the main factors that make the concentration of PM2.5 abnormal. The total emissions of VOCs have reached the level of more than 20 million tons per year. In various occasions where organic solvents are used, such as painting, printing, metal degreasing and degreasing, adhesives, pharmaceuticals, plastics, rubber, petroleum and other processing and production sites, volatile organic compounds (VOCs) are polluting the air. In terms of pollution control technologies that people use to remove volatile solvents (such as condensation, adsorption, absorption, combustion, biological, membrane separation, plasma, and photo...

Claims

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Application Information

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IPC IPC(8): B01D53/14B01D53/02B01D53/00B01D53/76B01D53/84F23G7/06F23G7/07
CPCB01D53/00B01D53/002B01D53/02B01D53/04B01D53/14B01D53/32B01D53/44B01D53/84F23G7/06F23G7/07Y02A50/20
Inventor 蔡祥雨
Owner FUJIAN LEBEN ENVIRONMENTAL PROTECTION TECH & EQUIP
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