Question 1: What is activated carbon? What is activated carbon used for? Answer: Activated carbon is a black porous solid carbon. In the early days, it was made from wood, hard fruit shells or animal bones through carbonization and activation. Later, it was produced from coal through crushing, molding or using uniform coal particles through carbonization and activation. The main component is carbon, and contains small amounts of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements. The structure of activated carbon is due to the irregular arrangement of microcrystalline carbon and pores between cross-links, which will produce carbon tissue defects during activation. Therefore, it is a porous carbon with low packing density and large specific surface area. The specific surface area of ??ordinary activated carbon is between 500 and 1700m2/g. It has strong adsorption performance and is a widely used industrial adsorbent.
Activated carbon, as a man-made material, was invented in 1900 and 1901. The inventor, Raphael von Ostrejko, obtained British patent B.P.14224 (1900); British patent B.P.18040 (1900) and German patent Ger.P .136792(1901).
He invented the method of carbonizing plant-source raw materials with metal chlorides or reacting carbon dioxide or water vapor with carbonized materials to produce activated carbon. It was first used in industrial production in a factory near Vienna in 1911. At that time, the product was powdered activated carbon with the trade name Epomit; in the same year, Norit was launched in the Netherlands; in 1912, Carboraffin was sold in Czechoslovakia. (Ger. Pat. 290656).
Looking back on the history of activated carbon application in the world over the past century, it may be roughly divided into three stages:
(1) The first stage, from the beginning of the 20th century to about the 1920s, was the germination Stages:
(2) The second stage, from about the mid-1920s to the middle period of the 20th century;
(3) The third stage, from the mid-20th century to the end of the 20th century The first stage is the development stage, and it develops into the stage of large-scale environmental protection application.
These three stages can be attributed to two historic events in the application process of activated carbon. as a dividing line. Detailed content: df-hxt/zswd/1802
Question 2: What is activated carbon? What does it do? Activated carbon can remove formaldehyde and benzene. The better activated carbon is coconut carbon. Coco carbon is a new type of activated carbon, which is made by a new process. Coconut carbon is a new type of activated carbon made from coconut shell as raw material, which is activated and carbonized at high temperature and loaded with photocatalyst and carbon fiber. It can absorb toxic and harmful nano-sized small molecules such as formaldehyde, benzene, and ammonia in the air. It has the characteristics of fast adsorption speed, targeting polar molecules, and can be recycled.
Question 3: What is activated carbon 20 points 1. Activated carbon is a very excellent adsorbent. It uses charcoal, bamboo charcoal, various fruit shells and high-quality coal as raw materials, through physical and chemical methods It is manufactured by carrying out a series of processes such as crushing, screening, catalyst activation, rinsing, drying and screening of raw materials.
2. (1). Used for liquid phase adsorption activated carbon (2). Used for gas phase adsorption activated carbon
3. Hanpu (HCHO-PSA) coconut shell Activated carbon is selected from tropical coconut shells between 10 degrees south latitude and 10 degrees north latitude. HCHO-PSA is used to modify the tropical coconut shell activated carbon. The HCHO~(2+) generated by the modification has a special ultra-fine adsorption center and has The adsorption performance of ordinary coconut shell activated carbon is more than 10 times, and it can effectively adsorb harmful gases such as formaldehyde (HCHO), TVOC, benzene series, ammonia and radon in the air in 0_2-HCHO mixed gas, with an adsorption capacity of 10000 mg/g. The above achieves the selection of indoor air and the improvement of the overall space environment.
Three major functions:
Detoxify and purify oxygen
The polymers contained in HCHO-PSA coconut shell activated carbon can quickly distinguish the air TVOC and harmful gases such as formaldehyde, benzene series, ammonia and radon in the activated carbon are targeted to be absorbed by the combination of physical and chemical properties of activated carbon, and the oxygen-enhancing factors that are beneficial to the human body are released to achieve detoxification and elimination. It has the function of smelling and purifying the overall indoor air.
Anti-mold and anti-radiation
The generation of mold is closely related to air humidity, and the high-tech HCHO-PSA coconut shell activated carbon is exactly the perfect combination between mold and air humidity. A bridge, it inhibits the reproduction of mold and microorganisms by regulating the humidity in the air. In addition, the large number of tachyon particles produced by HCHO-PSA coconut shell activated carbon can block electromagnetic waves and effectively prevent electromagnetic radiation from household appliances such as TVs, computers, mobile phones and car appliances from harming the human body.
Improve the overall environmental quality
Formaldehyde, benzene series, ammonia, radon and TVOC (volatile organic compounds) are all major indoor environmental pollution sources, which affect the overall indoor environment air quality. While sterilizing and deodorizing, HCHO-PSA coconut shell activated carbon continuously emits activation factors, regulates indoor air quality and humidity index 24 hours a day, maintains the optimal room temperature suitable for the human body, and creates a healthy and environmentally friendly living space. .
Question 4: What is activated carbon? Activated carbon is a type of microcrystalline carbon material made of carbonaceous materials that has a black appearance, developed internal pore structure, large specific surface area, and strong adsorption capacity. It is a commonly used adsorbent, catalyst or catalyst carrier. Activated carbon According to the source of raw materials, it can be divided into: wood activated carbon, fruit shell activated carbon, animal bone/blood activated carbon, mineral raw activated carbon, synthetic resin activated carbon, rubber/plastic activated carbon, regenerated activated carbon, etc.; activated carbon can be divided into powdery and granular according to its appearance. , irregular granular, cylindrical, spherical and fibrous, etc.
Question 5: What is activated carbon? Activated carbon. 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 charcoal 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. .
Question 6: What is activated carbon used for? Activated carbon mainly adsorbs formaldehyde and benzene. Activated carbon, especially coconut carbon, is a relatively cheap and practical method. It is characterized by physical adsorption, complete adsorption, and difficult to use. Cause secondary pollution. The physical function of activated carbon is to deodorize and detoxify; it does not contain any chemical additives and has no impact on the human body.
Question 7: What is activated carbon? What is the difference between it and wood charcoal? Hello! Activated carbon is a filter agent and charcoal is a burning agent.