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Nitrogen desorption and recovery process for organic waste gas

An organic waste gas and organic gas technology, which is applied in gas treatment, dispersed particle filtration, membrane technology and other directions, can solve the problems of acidic exhaust gas, affect reuse, and high solvent moisture content, and achieve high recovery efficiency, cost savings, and purity. high degree of effect

Pending Publication Date: 2019-02-01
杭州大伟装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are mainly two methods for the treatment of organic waste, water vapor desorption and nitrogen desorption. Although water vapor desorption has a good adsorption effect on activated carbon, it has obvious disadvantages. The recovered solvent has a high water content, which affects its reuse and produces A large amount of waste water, troublesome treatment, large steam consumption, high operating costs, acidic exhaust gas, which has a certain impact on the environment
However, the general nitrogen desorption method also has the problems of high operating cost and waste of raw materials.

Method used

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  • Nitrogen desorption and recovery process for organic waste gas

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A nitrogen desorption recovery process for organic waste gas, characterized in that it comprises the following steps:

[0027] (1) Organic waste gas collection: collect organic waste gas in the workshop through waste gas collection equipment;

[0028] (2) Filtration: The collected exhaust gas is discharged into the filter through a high-pressure fan for filtration, and the solid particle impurities are removed;

[0029] (3) Cooling: discharge the filtered organic waste gas into the cooling tower for cooling treatment;

[0030] (4) Distribution: Evenly distribute the cooled organic waste gas to several primary adsorption tanks through the air collector distributor;

[0031] (5) Primary adsorption: Adsorption treatment of organic waste gas is carried out through several primary adsorption tanks;

[0032] (6) Nitrogen desorption: use nitrogen to desorb organic waste gas;

[0033] (7) Solvent storage: the desorbed organic gas is cooled and liquefied and then stored as a ...

Embodiment 2

[0044] A nitrogen desorption recovery process for organic waste gas, characterized in that it comprises the following steps:

[0045] (1) Organic waste gas collection: collect organic waste gas in the workshop through waste gas collection equipment;

[0046] (2) Filtration: The collected exhaust gas is discharged into the filter through a high-pressure fan for filtration, and the solid particle impurities are removed;

[0047] (3) Cooling: discharge the filtered organic waste gas into the cooling tower for cooling treatment;

[0048] (4) Distribution: Evenly distribute the cooled organic waste gas to several primary adsorption tanks through the air collector distributor;

[0049] (5) Primary adsorption: Adsorption treatment of organic waste gas is carried out through several primary adsorption tanks;

[0050] (6) Nitrogen desorption: use nitrogen to desorb organic waste gas;

[0051] (7) Solvent storage: the desorbed organic gas is cooled and liquefied and then stored as a ...

Embodiment 3

[0062] A nitrogen desorption recovery process for organic waste gas, characterized in that it comprises the following steps:

[0063] (1) Organic waste gas collection: collect organic waste gas in the workshop through waste gas collection equipment;

[0064] (2) Filtration: The collected exhaust gas is discharged into the filter through a high-pressure fan for filtration, and the solid particle impurities are removed;

[0065] (3) Cooling: discharge the filtered organic waste gas into the cooling tower for cooling treatment;

[0066] (4) Distribution: Evenly distribute the cooled organic waste gas to several primary adsorption tanks through the air collector distributor;

[0067] (5) Primary adsorption: Adsorption treatment of organic waste gas is carried out through several primary adsorption tanks;

[0068] (6) Nitrogen desorption: use nitrogen to desorb organic waste gas;

[0069] (7) Solvent storage: the desorbed organic gas is cooled and liquefied and then stored as a ...

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Abstract

The invention discloses a nitrogen desorption and recovery process for organic waste gas. Adsorption is carried out on the organic waste gas by a plurality of first-stage adsorption tanks and a second-stage adsorption tank, and then nitrogen is used for desorption, so that the organic gas is separated from harmless gas, and the organic gas can be recycled after being liquefied. The nitrogen desorption mode adopted in the process is high in recovery efficiency, a recycled solvent contains no water and can be reused, the service life of the adsorption material is long, cost is saved, purity of discharged tail gas is high, and environmental protection is facilitated.

Description

technical field [0001] The invention relates to the technical field of organic waste gas recovery, in particular to a nitrogen desorption recovery process for organic waste gas. Background technique [0002] At present, there are mainly two methods for the treatment of organic waste, water vapor desorption and nitrogen desorption. Although water vapor desorption has a good adsorption effect on activated carbon, it has obvious disadvantages. The recovered solvent has a high water content, which affects its reuse and produces A large amount of waste water is troublesome to deal with, large steam consumption, high operating costs, and acidic tail gas, which has a certain impact on the environment. However, the general nitrogen desorption method also has the problems of high operating cost and waste of raw materials. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, the present invention provides a nitrogen desorption recovery...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02B01D46/00
CPCB01D46/0036B01D53/02B01D2258/02B01D2259/40086
Inventor 陈伟张军民张承斌
Owner 杭州大伟装饰材料有限公司
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