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wood activated carbon

Date :2024-01-03
Classify: Activated Carbon
Wood activated carbon is made of high-quality fuelwood, sawdust, wood blocks, coconut shells, fruit shells, etc. as raw materials. In accordance with China national standard for wood based activated carbon (GB/T13803.2-1999), it adopts present more popular processes: such as physical method, phosphoric acid and zinc chloride method for production.


Because these processes make the mesoporous structure and specific surface area of wooden activated carbon more developed, it has many advantages:
•  large adsorption capacity 
•  fast filtration speed
•  high strength
•  low ash content
•  reasonable pore size distribution
•  high ignition point


Wood base activated carbon has many wide applications:
1. Vapor phase adsorption
2. Solvents recovery (recovery of benzene gases toluene, xylene, acetone in the acetate fiber industry, CS2 recovery in viscose short fiber production, etc.); It has high adsorption and desorption performance, which greatly improves solvent recovery and removes harmful gases,
3. Decolourisation, refining, deodorisation and impurities removal 
•  glutamic acid, 
•  lactic acid, 
•  citric acid,
•  wine, 
•  condiments,
•  animal and plant proteins, 
•  biochemical products,
•  pharmaceutical intermediates, 
•  vitamins, 
•  antibiotics, etc.


Subject Test result Subject Test result
Iodine >900mg/g Methylene blue adsorption value ≥120mg/g
Surface area >1000m/g Moisture ≤8%
PH 3-5 or customized

Main advantages of wood based activated carbon:

•  The service life of wood based extruded activated carbon is 4-5 times that of ordinary coal-based activated carbon.
•  Wood pellets activated carbon has high adsorption and desorption properties, thus greatly improving the recovery rate of solvents.
•  Wood powder activated carbon has high strength, low ash content and reasonable pore size distribution.
•  Wood columnar activated carbon is cost-effective and suitable for recycling organic gases in such places.
•  Wood-based Activated Carbon Pellets has a high ignition point and is safe to use.

Product Categories

Pellet shape

wood pellet activated carbon
1. Wood based columnar activated carbon for PSA
• Separating nitrogen and carbon dioxide from the air, 
• Separating methane from fermentation gas
• Separating hydrogen from methanol decomposition gas and blast furnace gas, etc.
Model Moisture(%) Hardness(%) Ash (%) Iodine (%) CTC (%) Bulk density
Size (mm)
PSA-3080 ≤3 ≥98 ≤7 ≥1100 ≥80 360±20  Φ3.0
PSA-3060 ≤3 ≥98 ≤7 ≥1000 ≥60 380±20  Φ3.0
PSA-2580 ≤3 ≥95 ≤7 ≥1100 ≥80 360±20  Φ2.0
PSA-2560 ≤3 ≥98 ≤7 ≥1000 ≥60 380±20  Φ2.0

2. Wooden columnar activated carbon for gas purification
Purification, separation and refinement
• chemical raw material gases, 
• chemical synthesis gases, 
• pharmaceutical industry gases, 
• carbon dioxide gas for beverages,
• hydrogen, nitrogen, hydrogen chloride, 
• ethylene, ethane, cracked gas, inert gases, etc. 
• exhaust gases from atomic facilities.
Model Moisture(%) Hardness(%) Ash (%) Iodine (%) CTC (%) Bulk density
AS-3090 ≤5 ≥98 ≤7 ≥1000 ≥90 380±20  Φ3.0
AS-30100 ≤5 ≥95 ≤7 ≥1100 ≥100 350±20  Φ3.0
AS-4090 ≤5 ≥98 ≤7 ≥1000 ≥90 380±20  Φ4.0
AS-40100 ≤5 ≥95 ≤7 ≥1100 ≥100 350±20  Φ4.0

3. Ultra-low ash wood columnar activated carbon
It is suitable for purification and deodorization of drinking water; decolorization and refining of brewing industry, catalysts and carriers, medicines and chemicals, etc.
Model Moisture(%) Hardness(%) Ash (%) Iodine (%) methylene blue
Value (mg/g)
Bulk density
PH Size
WCA-4090 ≤5 ≥90 ≤2 ≥1000 ≥180 380±20 5-7  Φ4.0
WCA-40100 ≤5 ≥90 ≤2 ≥1100 ≥200 350±20 5-7  Φ4.0
WCA-3090 ≤5 ≥98 ≤2 ≥1000 ≥180 380±20 5-7  Φ3.0
WCA-30100 ≤5 ≥95 ≤2 ≥1100 ≥200 350±20 5-7  Φ3.0

4. Wooden columnar activated carbon for catalysts and carriers
It is mainly used for the treatment of toxic or odorous industrial waste gases containing hydrogen sulfide, methyl mercaptan, sulfur dioxide, methyl sulfide, dimethyl sulfide, mercury vapor, ammonia, etc.
Model Moisture(%) Hardness(%) H2S (g/cc) CTC(%) Bulk density
WCC-3070 ≤5 ≥98 ≥0.15 ≥70 400±20  Φ3.0
WCC-3080 ≤5 ≥98 ≥0.15 ≥80 380±20  Φ3.0
WCC-4070 ≤5 ≥98 ≥0.15 ≥70 400±20  Φ4.0
WCC-4080 ≤5 ≥98 ≥0.15 ≥80 380±20  Φ4.0

5. Wooden columnar activated carbon for solvent recovery
Strong separation and recovery properties for organic solvents and vapours:
• ethers, ketones, alcohols, tetrahydrofuran
• dichloromethane, chloroform, trichlorethylene
• perchlorethylene, carbon disulfide, benzene, toluene
• formyl, gasoline, fluorinated hydrocarbons, etc.
Model Moisture(%) Hardness(%) Ash(%) Benzene
WCS-3080 ≤5 ≥95 ≤7 ≥35 ≥80 400±20 380±30 Φ3.0
WCS-3090 ≤5 ≥90 ≤7 ≥40 ≥90 380±20 380±30 Φ3.0
WCS-30100 ≤5 ≥90 ≤8 ≥45 ≥100 350±20 380±30 Φ3.0
WCS-4080 ≤5 ≥98 ≤7 ≥35 ≥80 400±20 380±30 Φ4.0
WCS-4090 ≤5 ≥98 ≤7 ≥40 ≥90 380±20 380±30 Φ4.0
WCS-40100 ≤5 ≥95 ≤8 ≥45 ≥100 350±20 380±30 Φ4.0

Granular shape

wood granular activated carbon
wood based granular activated carbon
• organic solvent recovery; 
• oil and gas recovery; 
• air purification; 
• water treatment; 
• deodorization;
• military anti-toxic carbon for filling various filters gas masks
• carrier of desiccant in mine filter self-rescuers, poison filtration and ventilation devices; 
• brewing industry, Catalysts and carriers, 
• decolorization and refining of pharmaceuticals and chemicals, etc.
Model Moisture(%) Hardness(%) Ash(%) Iodine (%) CTC
WGC-6*8 ≤5 ≥70 ≤6 ≥1000 ≥100 340±20 ≥10 6×8
WGC-6*16 ≤5 ≥60 ≤6 ≥1000 ≥100 340±20 - 6×16
WGC-8*30 ≤5 ≥50 ≤6 ≥1000 ≥100 340±20 - 8×30
WGC-20*40 ≤5 ≥50 ≤6 ≥1000 ≥100 340±20 ≥11 20×40
WGC-20*50 ≤5 ≥50 ≤6 ≥1000 ≥100 340±20 ≥11 20×50
WGC-40*80 ≤5 ≥50 ≤6 ≥1000 ≥100 340±20 ≥11 40×80

Powder shape

wood activated carbon
wood based powdered activated carbon is refined from fruit shells and sawdust as raw materials. It looks like a fine black powder. And It is non-toxic and tasteless. Wood-based powdered activated carbon has a large specific surface area and strong adsorption capacity, which is suitable for colour removal in sugar refining, pharmaceuticals, beverages, alcohol, etc. In the water purification industry, it is also widely used in the decolorization, refining, purification and sewage treatment of organic solvents.
The production methods of wood activated carbon powder are divided into two types: phosphoric acid production and zinc chloride production. 

Wooden powder activated carbon produced by the phosphoric acid method has the characteristics of developed mesopore structure and developed specific surface area, large adsorption capacity, fast filtration speed, and does not contain zinc salts. 
It is widely used in the decolorization and refining of sugar, glutamic acid and salt, lactic acid and salt, citric acid and salt, wine, condiments, animal and plant proteins, biochemical products, pharmaceutical intermediates, vitamins, antibiotics and other products in the food industry. 

Wooden powdered activated carbon produced by the zinc chloride method has the characteristics of a developed mesoporous structure, large adsorption capacity, and rapid filtration. 
It is mainly suitable for decolorization, purification and deodorization of high pigment solutions such as various amino acid industries, refined sugar decolorization, MSG industry, glucose industry, starch sugar industry, chemical additives, dye intermediates, food additives, pharmaceutical preparations.

Wood powder activated carbon parameters:
Item Index
  A B
Iodine, mg/g ≥ 1000 900
Methylene blue adsorption rate,ml/0.1g mg/g ≥ 9.0
Hardness,% g/ml ≥ 94.0 85.0
Apparent density, g/ml 0.45-0.55 0.32-.47
Moisture,% ≤ 10.0 10.0
PH,% ≥ 5.5-6.5 5.5-6.5
Ash,% ≤ 5.0 5.0


Main factors affecting activated carbon adsorption:
1. The properties of the activated carbon adsorbent, the larger its surface area, the stronger the adsorption capacity; the size of the activated carbon adsorbent particles, the structure of the pores and distribution and surface chemical properties also have a great impact.
2. The nature of the adsorbate depends on its solubility, surface free energy, polarity, size and unsaturation of the adsorbate molecules, concentration of the adsorbent, etc.
3. Based on the pH value of liquid, activated carbon generally has a higher adsorption rate in acidic solutions than in alkaline solutions. The pH value will affect the existence state and solubility of the adsorbate in water, thereby affecting the adsorption effect.
4. Temperature has little effect on the adsorption of activated carbon.
5. There should be a certain contact time between the activated carbon and the adsorbent, so that the adsorption is close to equilibrium and the adsorption capacity is fully utilized.

Conclusion about activated carbon powder

Wood activated carbon powder serves as a highly efficient and eco-friendly solution for numerous filtration and purification requirements across industries. Its porous structure and exceptional adsorption capabilities make it an indispensable choice for decolorization in food and beverage. For those seeking a reliable source of premium activated carbon products, Zhulin Carbon is a better choice. Elevate your decolorization solutions by exploring Zhulin Carbon's range of premium activated carbon products. 
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