Quickly understand the classification of activated carbon
Activated carbon is a kind of black porous solid carbon, which is produced by pulverizing and shaping coal or carbonizing and activating uniform coal particles. The main component is carbon, and contains a small amount of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements. The specific surface area of ordinary activated carbon is between 500 and 1700 m2/g. It has strong adsorption performance and is an industrial adsorbent with a wide range of uses. Activated carbon is a traditional and modern man-made material, also known as carbon molecular sieve.
Classification:
According to the different sources of raw materials, manufacturing methods, appearance and shape, and application occasions, there are many types of environmentally friendly activated carbon. Up to now, there are no measurable statistical materials, and there are about thousands of varieties.
According to the source of raw materials:
1. Wooden activated carbon; 2. Animal bones, blood charcoal; 3. Mineral raw material activated carbon; 4. Other raw material activated carbon; 5. Regenerated activated carbon.
According to the manufacturing method:
1. Chemical activated carbon (chemical carbon); 2. Physical activated carbon; 3. Chemical-physical or physical-chemical activated carbon.
According to appearance shape:
1. Powdered activated carbon; 2. Granular activated carbon; 3. Unshaped granular activated carbon; 4. Cylindrical activated carbon; 5. Spherical activated carbon; 6. Activated carbon of other shapes.
According to the aperture:
Macropore radius>20 000nm; transition pore radius 150-20000nm; micropore radius<150nm The surface area of activated carbon is mainly provided by micropores.
Classified by material:
Coconut shell activated carbon; nut shell activated carbon (including apricot shell activated carbon, fruit core shell activated carbon, walnut shell activated carbon); wooden activated carbon; coal-based activated carbon.
Classification:
According to the different sources of raw materials, manufacturing methods, appearance and shape, and application occasions, there are many types of environmentally friendly activated carbon. Up to now, there are no measurable statistical materials, and there are about thousands of varieties.
According to the source of raw materials:
1. Wooden activated carbon; 2. Animal bones, blood charcoal; 3. Mineral raw material activated carbon; 4. Other raw material activated carbon; 5. Regenerated activated carbon.
According to the manufacturing method:
1. Chemical activated carbon (chemical carbon); 2. Physical activated carbon; 3. Chemical-physical or physical-chemical activated carbon.
According to appearance shape:
1. Powdered activated carbon; 2. Granular activated carbon; 3. Unshaped granular activated carbon; 4. Cylindrical activated carbon; 5. Spherical activated carbon; 6. Activated carbon of other shapes.
According to the aperture:
Macropore radius>20 000nm; transition pore radius 150-20000nm; micropore radius<150nm The surface area of activated carbon is mainly provided by micropores.
Classified by material:
Coconut shell activated carbon; nut shell activated carbon (including apricot shell activated carbon, fruit core shell activated carbon, walnut shell activated carbon); wooden activated carbon; coal-based activated carbon.