1. In the gas phase adsorption, the activated carbon
is often used, which usually allows the air flow to be adsorbed through the activated carbon layer.
According to the state of the activated carbon layer in the adsorption device, the adsorption layer has the fixed layer, the moving layer and the flow layer.
However, in small adsorbents such as electric ice cream and deodorant in automobile, adsorption is carried out by the convection and diffusion of gas.
In addition to the granule activated carbon
, activated carbon fiber and activated carbon forming materials are also widely used in the gas phase adsorption.
2. The instrument room, air conditioning, the air in the room, the basement and the bottom of the sea facilities due to the outside world pollution or influenced by people activities in a closed environment, contain the body odor, cooking, smoking, smells, oil, organic and inorganic sulfur, corrosive components, such as precision instrument corrosion or impact on human health.
The activated carbon can be purified to remove impurities.
3. Chemical plants, tanneries, paint factory, and the use of various kinds of organic solvent of the expulsion of gas engineering, contain a variety of inorganic and organic sulfides, organic solvents, hydrocarbons, chlorine gas, oil, mercury and other harmful to the environment, can be adsorbed by activated carbon emissions later.
In the gas that is discharged from the atomic energy facility, radioactive krypton, xenon, iodine and other substances must be absorbed by activated carbon to remove them.
The flue gas produced by coal and heavy oil combustion contains sulfur dioxide and nitrogen oxides, which are harmful components that pollute the atmosphere, form acid rain, and can be adsorbed and removed with activated carbon.
4. The coconut shell activated carbon
used in a lot of use cases also refined gas, such as gas mask, filter, refrigerator deodorizer, car tail gas treatment device, etc., are using activated carbon adsorption of outstanding performance, toxic ingredients, adverse to human body in the gas composition or smelly components removed.
For example, after adding 100 ~ 120ng activated carbon to the filter, see table 3-6-2, the harmful components of the smoke can be removed from the flue gas.
USES of coconut shell activated carbon: mainly used for drinking water, pure water, liquor, beverage, industrial sewage purification, decolorization, dechlorination, deodorization;
It can also be used in oil refining industry.
By modification of the activated carbon is particularly in the benzene in the air (ii) three benzene, benzene, formaldehyde, phenol, radon, ammonia, TVOC and other harmful substances and peculiar smell good removal effect, coconut shell activated carbon adsorption efficiency and the adsorption capacity is better than other types of activated carbon, and safe, no pollution, no any side effects.