Coal-columnar activated carbon is an activated carbon material with high adsorption capacity and a wide range of applications. It is made by subjecting high-quality coal to a special process, and its unique columnar structure makes it perform well in various industrial and environmental protection fields. This article will introduce the production process, characteristics and main applications of Coal-columnar activated carbon in detail.
Production process of Coal-columnar activated carbon
1. Coal selection: Select high-quality coal suitable for making activated carbon, which usually requires coal to have a high fixed carbon content and a low impurity content.
2. Crushing and screening: Crushing the selected coal into fine particles and screening to ensure uniform particle size.
3. Molding: Mix the coal powder with an appropriate amount of binder, and then make it into columnar particles of a certain shape and size through a tablet press or extruder.
4. Carbonization: In an oxygen-free or low-oxygen environment, the formed coal column is heated to 600-900 degrees Celsius to convert it into a carbonaceous material.
5. Activation: At high temperature, the carbonized material is activated using water vapor, carbon dioxide or chemical reagents to form a rich pore structure, thereby significantly improving its adsorption performance.
Characteristics of Coal-columnar activated carbon
1. High specific surface area: Due to its porous structure, Coal-columnar activated carbon has an extremely high specific surface area and can provide more adsorption sites.
2. Excellent mechanical strength: The columnar structure gives it high compressive strength and wear resistance, making it less prone to breakage and wear during use.
3. High adsorption capacity: Its unique pore structure and surface chemical properties give it an extremely high adsorption capacity for pollutants such as organic matter, gas and heavy metals.
4. Good thermal and chemical stability: Coal-columnar activated carbon shows good stability under high temperature and acid-base environment, and is suitable for various harsh process conditions.
Application of Coal-columnar activated carbon
1. Air purification: used to remove volatile organic compounds (VOCs), odors and other harmful gases in the air, and is widely used in indoor air purifiers and industrial waste gas treatment equipment.
2. Water treatment: used to adsorb organic pollutants, heavy metals and chlorides in water during drinking water treatment, wastewater treatment and industrial water purification.
3. Decolorization and purification: used to decolorize, purify and refine various products such as syrups, medicines and solvents in the food, pharmaceutical and chemical industries.
4. Solvent recovery: used to recycle and reuse solvents in the chemical and pharmaceutical industries to reduce production costs and reduce environmental pollution.
5. Catalyst carrier: Due to its high specific surface area and good chemical stability, Coal-columnar activated carbon is often used as a catalyst or catalyst carrier to improve reaction efficiency in chemical reactions.
In short, Coal-columnar activated carbon plays an important role in many fields due to its unique structure and superior performance. With the enhancement of environmental awareness and the continuous advancement of technology, the application prospects of Coal-columnar activated carbon will be broader. Understanding its production process, properties and applications will help to better utilize this valuable material and promote sustainable development and environmental protection.
