Hello everyone, today I will answer the question of activated carbon for you. What is the difference between activated carbon and carbon? Many people still don’t know, let’s take a look together now!
Contents of this article
- What is the function of activated carbon
- What does activated carbon mean
- What are the ingredients of activated carbon
- How much does activated carbon generally cost
- Is activated carbon useful
- What is the difference between activated carbon and carbon
1. What is the function of activated carbon?
Activated carbon can remove residual chlorine, colloids, organic matter, heavy metals (such as mercury, silver, cadmium, chromium, lead, nickel, etc.), radioactive substances, etc. in water. It is the earliest and most widely used water purification material used in water purifiers. Activated carbon forms a large number of fine pores of various shapes during the activation process, which has a strong adsorption effect.
The environmental protection industry is used for sewage treatment, waste gas and harmful gas control, and gas purification. SO2 and NOx emitted during the coal combustion process in my country are the main air pollution However, the modified activated carbon material has attracted people\’s attention due to its good desulfurization and denitrification treatment effects, low investment and operating costs, and easy regeneration.
Activated carbon adsorption method to remove indoor pollution is the most widely used, mature, safest, most reliable method and absorbs the largest variety of substances. As an excellent physical and chemical adsorbent, activated carbon has attracted more and more attention. The highly efficient and environmentally friendly activated carbon bag can absorb all indoor harmful gas molecules such as formaldehyde, ammonia, benzene, xylene, and radon in the air, quickly eliminating decoration odors.
Evenly adjust the space humidity, suitable for living rooms, furniture wardrobes, bookcases, shoe cabinets, shoe interiors, refrigerators, bathrooms, floors, fish tanks, cars, air conditioners, computers , offices, hotels and entertainment venues, it has very good effects. It is the nemesis of formaldehyde and an expert in antivirus.
Use activated carbon indoors to effectively absorb formaldehyde, xylene and other harmful substances contained in the air (especially in newly renovated houses).
Activated carbon can be used to place newly purchased furniture in cupboards, drawers, refrigerators, or inside shoes to remove odors.
New cars generally contain a lot of harmful substances and unpleasant and pungent odors, which can be effectively removed with activated carbon.
More than 80%-90% of activated carbon is composed of carbon elements, which is why activated carbon is a hydrophobic adsorbent. In addition to carbon elements, there are also two types of admixtures: one type is chemically combined elements, mainly oxygen and hydrogen. These elements are due to incomplete carbonization and remain in the charcoal, or during the activation process, foreign non-native elements are added. The carbon element is chemically bonded to the activated carbon surface.
For example, when activated with water vapor, the surface of activated carbon is oxidized or oxidized by water vapor; another type of admixture is ash, which is the inorganic part of activated carbon. The main raw materials of activated carbon can be almost all carbon-rich organic materials, such as coal, wood, fruit shells, coconut shells, walnut shells, apricot shells, date shells, etc.
These carbonaceous materials are converted into activated carbon through pyrolysis under high temperature and certain pressure in the activation furnace. During this activation process, a huge surface area and complex pore structure are gradually formed, and the so-called adsorption process is carried out in these pores and on the surface. The size of the pores in activated carbon has a selective adsorption effect on the adsorbate.
This is because macromolecules cannot enter the pore size of activated carbon that is smaller than its pore size. Activated carbon is a hydrophobic adsorbent made from carbon-based substances as raw materials and subjected to high-temperature carbonization and activation. Activated carbon contains a large number of micropores and has a huge surface area. It can effectively remove color and odor, and can remove most organic pollutants and certain inorganic substances in secondary effluent.
2. What does activated carbon mean
1. Activated carbon is a A carbon material with high adsorption capacity. It is usually obtained from natural carbon sources (such as wood, bamboo, coconut shells, etc.) or other organic materials (such as coal, petroleum coke, etc.) through high-temperature treatment.
2. This material has a lot of tiny pores and surface area, which makes activated carbon have strong adsorption capacity and can adsorb and remove many organic and inorganic substances. Such as harmful gases, colors, odors, heavy metal ions, etc.
3. Therefore, activated carbon is widely used in airand water treatment, purification and desorption processes in industrial production, as well as in consumer products such as masks, cup filters, and drinking fountains.
3. What are the components of activated carbon
The main components of activated carbon are: Carbon, oxygen and hydrogen.
The ash composition and content in activated carbon have a great influence on the adsorption activity of the carbon. Ash is mainly composed of K2O, Na2O, CaO, MgO, Fe2O3, Al2O3, P2O5, SO3, Cl, etc. The ash content is related to the raw materials for making activated carbon. Moreover, with the removal of volatile matter in the carbon, the ash content in the carbon increases. .
4. How much does activated carbon generally cost
It is generally relatively low-end The activated carbon is 4000-8000 per ton, and the slightly better one is 8000-12000/ton. Activated carbon with an iodine value above 12,000 is of good quality. The three grades corresponding to the different iodine values are 600-900, 900-1200, and 1200-1500 (unit is mg/g).
Activated carbon is also called activated carbon black. It is black powdery or massive, granular, honeycomb-shaped amorphous carbon, and there are also regularly arranged crystalline carbon. In addition to carbon elements, activated carbon also contains two types of admixtures: one is chemically combined elements, mainly oxygen and hydrogen. These elements remain in the carbon due to incomplete carbonization, or are exogenous during the activation process. Non-carbon elements are chemically combined with the surface of activated carbon. For example, when activated with water vapor, the surface of activated carbon is oxidized or oxidized by water vapor. Another type of admixture is ash, which is the inorganic part of activated carbon. Ash in activated carbon can easily cause secondary pollution. .
5. Is activated carbon useful
1. Because activated carbon has more With strong adsorption capacity, it can adsorb formaldehyde molecules in the air to the surface of activated carbon materials, thereby effectively reducing the formaldehyde content in the air and achieving the formaldehyde removal effect.
2. However, it should be noted that the adsorption of formaldehyde by activated carbon is interfered by multiple factors, and the adsorption speed is very slow. After all, formaldehyde-containing substances release formaldehyde slowly.
3. The most effective and immediate way to remove formaldehyde is to open windows for ventilation and increase indoor air flow
6. What is the difference between activated carbon and carbon
Carbon, generally Refers to coal, which is a natural mineral. Activated carbon is an artificial material. It is a black porous solid carbon. There are many types of activated carbon due to different raw material sources, manufacturing methods, appearance shapes and application occasions. Used in the environmental protection industry and the electric power industry, it has adsorption, mechanical, chemical and other properties.
The article ends here. If the question shared this time about activated carbon and the difference between activated carbon and carbon has solved your problem, then we are sincerely happy!
