Flat chemical Activated carbon filter

Flat chemical Activated carbon filter

Flat chemical filter is also called activated carbon filter or chemical air filter. Unlike general air filters, it can remove gas pollutants (such as disturbing odors, corrosive gases, toxic gases) in the air and effectively improve indoor air. Quality (IAQ), protect people's health and improve product quality, widely used in various centralized ventilation systems.

Chemical filters selectively adsorb gaseous pollutant molecules without 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. through

Adsorption in which chemically treated adsorbents react chemically 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.