Powdered Activated Carbon

Product Introduction

Specific Parameters

• Iodine Value: The iodine value is one of the important indicators for measuring the adsorption performance of powdered activated carbon. Generally speaking, the iodine value of coconut shell powdered activated carbon can reach 800 - 1200mg/g, while that of coal-based powdered activated carbon is between 300 - 600mg/g. The higher the iodine value, the stronger the adsorption capacity of the activated carbon for small molecular substances.

• Particle Size: The particle size of powdered activated carbon is usually very fine. Its particle diameter is generally less than 0.18mm (80 mesh), and some products can even reach less than 0.075mm (200 mesh). The fine particle size helps to increase the contact area with the adsorbate and accelerate the adsorption speed.

• Specific Surface Area: It has a relatively large specific surface area, usually ranging from 700 - 1500m²/g. The huge specific surface area provides abundant adsorption sites, allowing powdered activated carbon to adsorb a large number of impurities and pollutants.

• pH Value: Its pH value generally ranges from 4 to 10, and the specific value varies depending on the raw materials and production processes. In most application scenarios, this pH value range can ensure that the activated carbon will not have adverse chemical effects on the adsorption system.

• Ash Content: Ash content refers to the content of inorganic components in activated carbon. The ash content of coconut shell powdered activated carbon is relatively low, generally between 3% - 8%, while that of coal-based powdered activated carbon is about 5% - 15%. A lower ash content means higher purity and better adsorption performance.

Applications

Liquid-phase Adsorption

• Drinking Water Purification: In drinking water treatment, powdered activated carbon can effectively remove residual chlorine, odors, chromaticity, heavy metal ions (such as mercury, lead, cadmium, etc.) and organic pollutants (such as pesticide residues, polycyclic aromatic hydrocarbons, etc.) in water, improving the taste and safety of drinking water.

• Sewage Treatment: It is used for the advanced treatment of industrial wastewater and domestic sewage to adsorb harmful substances such as chemical oxygen demand (COD), biochemical oxygen demand (BOD), organic dyes, phenols, and cyanides in sewage, reducing the pollution degree of sewage and contributing to the discharge and reuse of sewage that meets the standards.

• Food and Beverage Industry: In industries such as sugar production, winemaking, and fruit juice processing, it is used for decolorization, deodorization, and impurity removal to improve the quality and appearance of products. For example, in white sugar production, powdered activated carbon can adsorb pigments in sugar liquid to make the white sugar whiter.

Gas-phase Adsorption

• Air Purification: In indoor air purifiers and ventilation systems, it adsorbs harmful components in the air such as formaldehyde, benzene, TVOC (total volatile organic compounds), odors, and smoke, improving air quality. It can also be used for industrial waste gas treatment to remove harmful gases such as volatile organic compounds (VOCs), hydrogen sulfide, and ammonia in waste gas.

• Gas Masks and Respiratory Protection Equipment: As an adsorbent filled in gas masks and respiratory protection equipment, it can effectively adsorb toxic and harmful gases to protect people's respiratory safety.

Advantages

• High Adsorption Efficiency: Due to the fine particle size, large specific surface area, and well-developed pore structure of powdered activated carbon, it has a fast adsorption speed and a large adsorption capacity. It can adsorb a large number of impurities and pollutants in a short time and has a good adsorption effect on both low-concentration and high-concentration adsorbates.

• Good Dispersibility: It can quickly disperse in liquids or gases and fully contact with the adsorbate, making the adsorption process more uniform and efficient. This dispersibility is particularly important in liquid-phase adsorption, ensuring that the activated carbon can adsorb impurities in the entire solution system.

• Easy to Operate and Use: The usage amount can be conveniently adjusted according to different application scenarios and adsorption requirements. In liquid-phase adsorption, powdered activated carbon can be directly added to the solution for stirring adsorption, and in gas-phase adsorption, it can also be evenly distributed through appropriate devices, with simple and flexible operation.

• High Customizability: The performance of activated carbon, such as adsorption performance, particle size, and pH value, can be adjusted by changing raw materials, production processes, etc. to meet the special needs of different industries and users.

Characteristics

Physical Characteristics

• Appearance and Morphology: It appears as a black powder with no fixed shape and is lightweight. This powdery form enables it to be filled in containers or equipment of various shapes and sizes and allows it to fully contact with the adsorbate.

• Pore Structure: It has abundant pores, including micropores, mesopores, and macropores. Micropores are mainly used for adsorbing small molecular substances, mesopores are beneficial for the adsorption and diffusion of large molecular substances, and macropores play a role in providing channels and reducing fluid resistance. This multi-level pore structure enables it to adsorb substances with different molecular sizes.

• Density Characteristics: The bulk density is relatively small, generally ranging from 0.3 - 0.6g/cm³. The small bulk density makes powdered activated carbon occupy relatively less space during storage and transportation, and it is also convenient for mixing with other substances when in use.

Chemical Characteristics

• Chemical Stability: Under general chemical environments, powdered activated carbon has stable chemical properties and does not react with most common adsorbates. However, under the action of high temperature, strong oxidants (such as potassium permanganate, hydrogen peroxide, etc.), or strong acids and alkalis (such as concentrated sulfuric acid, concentrated sodium hydroxide, etc.), chemical reactions may occur, resulting in a decline in adsorption performance.

• Surface Functional Groups: Its surface has a certain number of functional groups, such as carboxyl groups (-COOH), hydroxyl groups (-OH), lactone groups, etc. These functional groups can form chemical bonds or hydrogen bonds with certain adsorbates, enhancing the adsorption effect. Meanwhile, the adsorption performance and selectivity of activated carbon can also be adjusted through surface modification.
  
  
  
  

FAQ 

What raw materials do you use for your powdered activated carbon?

We produce powdered activated carbon from high-quality carbon sources such as coconut shells, wood, and coal. This variety allows us to tailor the adsorption capacity and purity to meet specific industrial needs, ensuring our customers receive the most suitable product for their applications.

Can you customize powdered activated carbon products?

Yes, we customize particle size, iodine value, pH range, and ash content by adjusting raw materials and production processes. Our flexibility enables us to provide powdered activated carbon solutions optimized for your particular filtration or purification requirements.

How do you ensure product quality and reliability?

We apply rigorous quality management systems compliant with GB/T19001 and ISO standards, along with real-time process monitoring and sampling for every batch. This approach guarantees consistent performance in activated carbon filtration, meeting stringent industrial specifications.

What logistics and delivery options are available for bulk orders?

We maintain sufficient production capacity to fulfill large and diverse orders promptly. Our shipping arrangements support reliable delivery worldwide, enabling your supply chain to leverage our activated carbon supplier services efficiently and without delay.