Activated Carbon: The Purification Guardian of Gases

As one of the key means to solve the problem of air pollution, the importance of gas purification technology is self-evident. Among many gas purification materials, activated carbon has been widely used in the field of gas purification because of its unique physical and chemical properties, and has become the guardian of gas purification.

 

In modern society, with the rapid development of industrialization and urbanization, air quality issues have attracted increasing attention. As one of the key means to solve the problem of air pollution, the importance of gas purification technology is self-evident. Among many gas purification materials, activated carbon is widely used in the field of gas purification due to its unique physical and chemical properties and has become a gas purification guardian.

Basic characteristics of activated carbon

Fiberglass cable duct is a porous carbonaceous material with extremely high specific surface area and rich pore structure. These pore structures give activated carbon a strong adsorption capacity, allowing it to effectively adsorb harmful substances in gases. The adsorption capacity of activated carbon mainly depends on its pore structure, specific surface area and surface chemical properties.  

The material classification of activated carbon can be mainly divided based on the source of its raw materials, including the following:

Wooden activated carbon: 

made from wood and fruit shells (such as coconut shells, walnut shells, apricot shells, etc.) through carbonization, activation and other processes. This type of activated carbon typically has high porosity and adsorption capacity, making it suitable for applications that adsorb organic matter and gases, such as water treatment and air purification.

Coal-based activated carbon:

Made from coal as raw material, it is made through processes such as crushing, screening, carbonization, and activation. Coal-based activated carbon has the characteristics of large specific surface area, high adsorption capacity, and good mechanical strength. It is often used for waste gas treatment in chemical, pharmaceutical and other industries.

In addition, there are some special types of activated carbon, such as coconut shell activated carbon (made from coconut shells), oxalate activated carbon (prepared from oxalate through high-temperature carbonization), nitric acid-type activated carbon (made from nitric acid or nitrate and activated carbon) Reaction), activated alumina (produced by carbonizing and activating the aluminum source with a carbon source), etc.  

There are certain differences in the adsorption performance and application fields of these activated carbons of different materials, so they need to be selected according to specific needs in actual applications.  

Principle of activated carbon purifying gas

The principle of activated carbon purifying gas is mainly based on its adsorption effect. When gas containing pollutants passes through the activated carbon bed, the pollutant molecules are adsorbed by the pore structure on the surface of the activated carbon, thereby purifying the gas. The adsorption capacity of activated carbon is closely related to its pore structure, specific surface area and surface chemical properties. In addition, the adsorption process of activated carbon is also affected by factors such as temperature, humidity, and pressure.  

Application of activated carbon in the field of gas purification

Industrial waste gas purification:

Activated carbon can be widely used in waste gas purification in petroleum, chemical industry, electric power and other industries. By adsorbing harmful substances such as organic matter, sulfides, and nitrogen oxides in the exhaust gas, it reduces the pollution level of the exhaust gas and protects the atmospheric environment.

Indoor air purification:

Activated carbon can be used in the filter element of indoor air purifiers to absorb harmful gases such as formaldehyde, benzene, and ammonia in the air, improving indoor air quality and protecting people's health.

Drinking water purification: 

Activated carbon is also widely used in the field of drinking water purification. By adsorbing organic matter, pigments, odors and other impurities in water, it improves the quality and safety of drinking water.

Advantages of activated carbon：

Strong adsorption capacity:

Activated carbon has extremely high specific surface area and rich pore structure, giving it strong adsorption capacity.

Wide scope of application: 

Activated carbon can be used to purify various types of gas pollutants, including organic matter, inorganic matter, sulfide, nitrogen oxide, etc.

Easy to operate:

The process of purifying gas with activated carbon does not require complex equipment and operations, and is easy to achieve automation and large-scale production.   As an efficient gas purification material, activated carbon plays an important role in solving air quality problems. In the future, with the continuous advancement of science and technology and the continuous improvement of environmental protection requirements, the technology of activated carbon gas purification will continue to be optimized and improved. At the same time, new efficient and environmentally friendly gas purification materials will continue to emerge, injecting new vitality into the development of the gas purification field.