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How does an activated carbon air filter work?

2022-03-25 Page view : 151 views

Activated carbon filter is a flat chemical filter, or chemical air filter; different from general air filters, activated carbon air filters can remove gas pollutants (such as disturbing odors, corrosive gases, toxic gases) in the air, effectively Improve indoor air quality (IAQ), protect people’s health and improve product quality, widely used in various centralized ventilation systems.

The activated carbon air filter has a very strong adsorption capacity for some harmful inorganic gases of organic substances, which can effectively remove odors and is suitable for various air conditioning and ventilation systems. It is particularly effective in dealing with odors and air pollution in air conditioning and ventilation systems, and can effectively clean the air.


The Filtration Principle of Activated Carbon Air Filter | Chemical Filter:

Activated carbon air filters selectively adsorb gaseous pollutant molecules instead of mechanically intercepting impurities like dust filters.

Adsorption is the adsorption of gas or liquid molecules on the surface of a solid substance, in which the solid substance is called an adsorbent, and the adsorbed substance is called an adsorbate.

Adsorption can be divided into physical adsorption and chemical adsorption. Physical adsorption mainly relies on van der Waals forces, which are often carried out at lower temperatures, and the process is a reversible process.

For some gases (such as ammonia and hydrogen sulfide), the adsorption capacity of ordinary activated carbon is limited. At this time, people often chemically treat them to enhance their ability to remove specific pollutants.

Adsorption in which chemically treated adsorbents react with harmful gases is called chemisorption, and the process is irreversible.


The Adsorption Process Can Be Divided into Three Stages:

  • Gas molecules diffuse to the outer surface of activated carbon, referred to as external diffusion.
  • Gas molecules diffuse into the inner surface of activated carbon pores, referred to as internal diffusion.
  • Gas molecules are adsorbed on the inner surface of activated carbon.


Application Of Activated Carbon Filter | Chemical Filter:

Air filtration in public places such as airports, hospitals (such as wards for patients with respiratory diseases), office buildings, etc., effectively removes odors in the air and has the advantage of saving energy.

In museums, archives, libraries and other places, remove polluting gases such as hydrogen sulfide and nitrogen oxides in the air, and protect collections from damage.

The central control room of chemical, petrochemical, steel and other enterprises is used to protect precision instruments from corrosive gases.

Semiconductor and microelectronics manufacturing companies, remove “molecular-level pollutants”, improve product quality, and protect human health.

Reduce odor in the experimental animal room, improve the quality of experimental animals, and protect the atmospheric environment.

Chemical filters for general ventilation are suitable for comfortable central air-conditioning systems to eliminate low-concentration gaseous pollutants, effectively improve indoor air quality (IAQ), and effectively remove body odor and smoke odor; purify.


Product Performance of Activated Carbon Air Filter | Chemical Filter:

Filter material: activated carbon non-woven fabric, activated carbon particles

Frame: aluminum frame, stainless steel, galvanized frame

Large adsorption area, strong adsorption performance, high activated carbon content, good ventilation performance, low resistance, long life and low-cost Effective adsorption of industrial waste gas, such as: benzene, toluene, xylene, acetone, oil and gas, sulfur dioxide, CS2 and other organic solvents

Size can be customized according to customer requirements Flat chemical filter | activated carbon filter Use environment:

Maximum temperature: ≤70℃

Maximum humidity: ≤95%RH

Activated carbon air filter | chemical filter application places:

Widely used in heavy pollution industries such as chemical, pharmaceutical, paint, etc., with obvious anti-virus and deodorization effect

Air purification and deodorization in underground places, leather factories, animal breeding places


Product Features of Activated Carbon Air Filter:

1.) Aluminum frame, galvanized frame, stainless steel frame, etc. can be used, and the thickness can be made according to customer requirements.

2.) The filter material is made of high-quality activated felt or activated carbon fiber.

3.) Good deodorization effect, easy to use and long filter life.

And it is also extremely important to choose a good activated carbon air filter manufacturer.