Pillared activated carbon
Columnar activated carbon is a type of high-efficiency adsorbent material with a cylindrical shape. Its raw materials are widely sourced, mainly including coal, wood (such as sawdust, fruit shells), coconut shells, etc.
Columnar activated carbon is a type of high-efficiency adsorbent material with a cylindrical shape. Its raw materials are widely sourced, mainly including coal, wood (such as sawdust, fruit shells), coconut shells, etc.
Columnar activated carbon is a type of high-efficiency adsorbent material with a cylindrical shape. Its raw materials are widely sourced, mainly including coal, wood (such as sawdust, fruit shells), coconut shells, etc. Columnar activated carbon produced from different raw materials has its own characteristics in terms of performance. For example, coal based columnar activated carbon has a lower cost and is suitable for large-scale industrial applications; Wooden columnar activated carbon has fewer impurities and is commonly used in the food and pharmaceutical industries; Coconut shell columnar activated carbon has excellent adsorption performance, especially adept at treating small molecule harmful substances. During the production process, the raw materials need to be crushed first, mixed with a binder and extruded into shape. Then, carbonization and high-temperature activation are carried out to form rich and irregular pore structures inside the raw materials, ultimately producing columnar activated carbon with a black appearance and a smooth surface.
The working principle of columnar activated carbon mainly revolves around the adsorption and desorption processes.
1. Adsorption process: Its well-developed pore system is the core foundation of adsorption, with a large number of micropores, mesopores, and macropores. When gas or liquid flows through columnar activated carbon, pollutant molecules are adsorbed on the pore surface due to van der Waals forces, electrostatic attraction, and other interactions between molecules. If pollutant molecules react chemically with functional groups on the surface of activated carbon (such as hydroxyl and carboxyl groups), it belongs to chemical adsorption, and the adsorption effect is more firm. Pores of different pore sizes also have selectivity for the size of pollutant molecules, with micropores adsorbing small molecules and mesopores and macropores assisting in the diffusion and adsorption of large molecules.
2. Desorption process: After the columnar activated carbon is saturated with adsorption, desorption regeneration can be achieved through physical or chemical methods. Physical methods such as heating up, increasing the temperature to allow pollutant molecules to obtain sufficient energy to detach from the surface of activated carbon; Reduce pressure, lower system pressure to alter adsorption equilibrium, and promote pollutant desorption; Blowing, using inert gas to remove desorbed pollutants. The chemical method involves reacting specific chemical reagents with adsorbents to detach them from the surface of activated carbon, restoring its adsorption capacity for recycling.
Indicators/Projects | Unit | Φ4.5 | Φ3.0 | Φ4.0 |
Iodine number | Mg/g | 500/650 | 650/700 | 680/760 |
Carbon tetrachloride | % | 50/70 | 50/70 | 50/70 |
loss on drying | % | 5 | 5 | 5 |
Ignition residue | % | 3/5 | 3/5 | 3/5 |
1. Excellent adsorption performance: Strong adsorption capacity for various pollutants. In industrial waste gas treatment, it can effectively remove harmful gases such as sulfur dioxide, nitrogen oxides, benzene derivatives, hydrogen sulfide, etc; In the field of water treatment, it can adsorb residual chlorine, organic matter, heavy metal ions, pigments, odors, etc. in water to achieve water purification.
2. High mechanical strength: The special extrusion molding process and raw material characteristics give columnar activated carbon high mechanical strength and strong particle anti crushing ability. During transportation, loading, and use, it is less prone to breakage and pulverization, which can reduce equipment blockage caused by activated carbon powder and ensure stable system operation.
3. Good chemical stability: In complex environments with different pH values, temperatures, and pressures, columnar activated carbon has stable chemical properties and is not easily reacted with other substances. It can adapt to harsh working conditions such as high temperature, high humidity, and strong acidity and alkalinity in industries such as chemical, metallurgical, and power, and maintain stable adsorption performance for a long time.
4. Widely applicable: With excellent adsorption performance and stable physical and chemical properties, columnar activated carbon has important applications in multiple industries such as chemical, food, pharmaceutical, environmental protection, and gold extraction. Used in the chemical industry for catalyst carriers and solvent recovery; Used in the food industry for beverage decolorization and refinement; In the field of environmental protection, it is used for air purification, industrial wastewater treatment, etc., to meet diverse purification and treatment needs.
5. Renewable recycling: After adsorption saturation, the columnar activated carbon can be effectively restored to its adsorption performance through reasonable regeneration treatment, and can be reused multiple times. This not only reduces the cost of use, but also reduces the generation of solid waste, which meets the requirements of sustainable development and environmental protection.
Copyright 2025 Henan Zhongyi Water Purification Materials Co., Ltd. Sitemap
