Activated Carbon Adsorption and Desorption Catalytic Combustion Equipment

activated carbon adsorption and desorption catalytic combustion equipment is an environmentally friendly equipment for organic waste gas treatment with high efficiency, energy saving and no secondary pollution. This purification equipment is mainly used for the purification of harmful waste gas volatilized or leaked from painting and printing and the elimination of odor. It is suitable for low-concentration (50-500ppm) organic waste gas and can obtain satisfactory economic and social benefits.

Technology principle

This purification equipment is designed based on the two basic principles of adsorption (high efficiency) and catalytic combustion (energy saving), namely adsorption concentration-catalytic combustion method.

The exhaust gas containing organic matter is acted upon by the fan and passes through the activated carbon adsorption layer. The organic matter is adsorbed inside by the unique force of the activated carbon, and the clean gas is discharged; after a period of time, when the activated carbon reaches a saturated state, the adsorption stops, and the organic matter has been concentrated in the activated carbon.

The activated carbon adsorption and desorption catalytic combustion equipment is equipped with a heating chamber, the heating device is started, and the internal circulation is entered. When the hot air source reaches the boiling point of the organic matter, the organic matter evaporates from the activated carbon and enters the catalytic chamber for catalytic decomposition into water and carbon dioxide, while releasing energy. When the released energy is used to enter the adsorption bed for desorption, the heating device stops working completely at this time, the organic waste gas maintains spontaneous combustion in the catalytic combustion chamber, the tail gas is regenerated, and the cycle is carried out until the organic matter is completely separated from the activated carbon and decomposed in the catalytic chamber. The activated carbon is regenerated and the organic matter is decomposed.

Process flow

After being pre-treated by a dry filter, the organic waste gas enters the activated carbon adsorption bed, where the organic solvent in the waste gas is adsorbed by the characteristics of the activated carbon such as micropores and huge surface tension, so that the discharged waste gas is purified as the first working process;

After the activated carbon is saturated with adsorption, the organic solvent adsorbed on the activated carbon is removed by hot air flow at a certain concentration ratio and sent to the catalytic combustion bed as the second working process;

After the high-concentration organic waste gas entering the catalytic combustion bed is further heated, the oxygen is decomposed under the action of the catalyst and converted into CO2 and H2O. The heat released by the decomposition is recovered by the high-efficiency heat exchanger and used to preheat the high-concentration organic waste gas entering the catalytic combustion bed as the third working process. After the above three working processes reach self-balance after a certain period of operation, the desorption and catalytic oxidation decomposition processes do not require external energy heating.

Performance advantage

1. High adsorption purification efficiency, stable treatment effect, ensuring that waste gas meets emission standards

2. Stable operating performance, safe and reliable, low energy consumption, no secondary pollution

3. Complete safety facilities, equipped with flame arrester, pressure relief hole, temperature sensor alarm system and other safety measures

4. Can be used to purify organic waste gas generated by continuous or intermittent production

5. Fully automatic control, simple operation, long service life, and renewable carrier

Scope of application

It is used to treat medium and high concentration organic waste gas with large air volume generated in industries such as petroleum, chemical industry, plastics, rubber, pharmaceuticals, printing, furniture, textile printing and dyeing, coating, paint, semiconductor manufacturing, and synthetic materials. It can treat organic substances including benzene, phenols, aldehydes, ketones, ethers, esters, alcohols, hydrocarbons, etc.