Novel organic waste gas recovery method and system

A technology of organic waste gas and recovery method, which is applied in the field of environmental protection, can solve the problems of activated carbon fiber loss of activity, water vapor cannot be effectively desorbed, and cannot operate normally, achieving low water content, good recovery effect, and reducing equipment manufacturing costs.

Inactive Publication Date: 2012-05-30
DALIAN CHUANGDA TECH TRADE MARKET
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] (3) When the working condition is poor, impurities such as dust entrained in the airflow will accumulate in the activated carbon fiber, and the activated carbon fiber loses its activity under the effects of salting out, filling, etc.
[0007]

Method used

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  • Novel organic waste gas recovery method and system
  • Novel organic waste gas recovery method and system

Examples

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Example Embodiment

[0031] figure 1 It is a process flow diagram of the method of the present invention, the organic waste gas air collecting system 1 collects the working air flow to be treated in the process method of the present invention. The induced draft fan 2 provides power, and the airflow control three-way valve 3 controls the flow direction. When the system is working, the air inlet is opened to introduce the organic waste gas into the processor for adsorption. When the system is maintained, the organic waste gas exhaust port is opened. The filter and pre-cooler pretreatment system 4 can remove most of the suspended solids and particulate impurities in the airflow, and can adjust the temperature and humidity of the exhaust gas, so as to prolong the service life of the activated carbon fiber and improve the adsorption effect. The cooling fan 5 can introduce ambient air into the adsorbers A and B through the cooling air inlet valves A7 and B7 to reduce the temperature of the adsorption la...

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Abstract

The invention relates to a novel organic waste gas recovery method and a novel organic waste gas recovery system, which belong to the field of environmental protection. By the organic waste gas recovery method utilizing activated carbon fibers and utilizing nitrogen gas as a desorption medium, organic waste gas and nitrogen gas can be recovered and reutilized simultaneously by the aid of a fixed-bed adsorber through hot nitrogen gas desorption, wherein the fixed-bed adsorber utilizes activated carbon fibers as adsorbent. Due to hot nitrogen gas desorption, secondary pollutant can be avoided, environment-friendly emission reaching the standards can be realized, an adsorption layer is kept dry, the utilization rate of the activated carbon fibers is increased, and the service life of the activated carbon fibers is prolonged. Since water vapor desorption is omitted, corrosion of equipment is avoided and manufacturing cost of equipment is reduced greatly. In addition, the novel organic waste gas recovery method has excellent effect on recovering solvent with high water solubility or easy to be hydrolyzed and organic waste gas with high boiling point, products recovered by the method is low in water content, solvent quality is high, and operating cost can be reduced.

Description

technical field [0001] The invention relates to the field of environmental protection, recovers high-boiling point gaseous compounds such as liquid compounds from gaseous mixtures, and particularly relates to organic waste gas produced in the production process of printing, light industry, coating, chemical industry, electronics and other industries. A method for recovering various organic waste gases and recycling them. Background technique [0002] Activated carbon fiber (ACF), also known as fibrous activated carbon, is an efficient active adsorption material and an environmental protection engineering material with better performance than activated carbon. More than 50% of its carbon atoms are located on the inner and outer surfaces, forming a unique adsorption structure, which is called a surface solid. It is formed by carbonization and activation of fibrous precursors through certain procedures. The more developed specific surface area and narrow pore size distributi...

Claims

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Application Information

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IPC IPC(8): B01D53/04
Inventor 海勇
Owner DALIAN CHUANGDA TECH TRADE MARKET
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