Why can wood activated carbon catch poisonous gas and release oxygen and nitrogen? Originally, the adsorption of wood activated carbon is related to the boiling point of the adsorbed gas. wood activated carbon powder The higher the boiling point of the gas (that is, the more easily liquefied gas), the greater the adsorption capacity of activated carbon. The boiling point of most chemical toxic gases used in military use is much higher than that of oxygen and nitrogen.
Activated carbon can be used in gas masks, and it has many other uses. In a waterworks, if the water source has a bad smell, just let the water flow through the activated carbon and it will not stink.
You might say the tap water still smells. This is the smell of chlorine, because the tap water is often disinfected by chlorine. In sugar factories, workers add some activated carbon to brown sugar water. After stirring and filtering, they can get colorless sugar solution. After decompression and evaporation of water, brown sugar becomes crystal white sugar.
Many goldfish tanks in modern families are equipped with electric water pumps to circulate water through the filter. Activated carbon is also used in the filter to absorb odor and impurities in water.
It is well known that charcoal can be obtained by isolating wood from the air and increasing heat. Charcoal is a kind of porous material, the surface area of porous material must be very large. The larger the surface area of a substance, the more molecules it adsorbs on other substances, and the stronger the adsorption.
If high-temperature steam is continuously used to remove the oil adhering to the surface of charcoal and make numerous internal pipes unobstructed, the surface area of charcoal must be larger. coal pellet activated carbon The charcoal processed in this way is called wood activated carbon. Obviously, wood activated carbon has stronger adsorption.
