Activated Carbon

Activated Carbon: 1. Coal-Based Activated Carbon, Wood Activated Carbon, Nutshell Activated Carbon, Coconut Shell Activated Carbon, 2. Granular Activated Carbon, Cylindrical Activated Carbon, Columnar Activated Carbon, Crushed Activated Carbon, Powdered Activated Carbon, Spherical Activated Carbon, Honeycomb Activated Carbon 3. Post-Treated Activated Carbon Products, Acid-Treated Carbon, Water-Washed Carbon, Coated Carbon, Impregnated Activated Carbon, KOH-Impregnated Carbon, Silver-Impregnated Carbon, LiBr-Impregnated Desiccant, Cupric Sulfate-Impregnated Carbon

Activated Carbon

1. General Description

Activated carbon is a porous carbon material with a highly developed pore structure and a huge specific surface area. Therefore it has strong adsorption. Activated carbon possesses three categories of pores: micropore, mesopore, and macropore. Their diameter is<20Å, 20-2000Å, and>2000Å respectively. Activated carbon contains different surface oxygen groups and can, also be impregnated with chemical impregnants to produce impregnated activated carbons. Thus activated carbon is not only an excellent adsorbent but also a catalyst carrier.

As shown in the above photo, the interior of activated carbon has a large number of pores. Their expanded surface area is huge. The total internal surface area per gram of activated carbon is proximately 1000m². The total micropore volume is large. lt is of developed pore structure. We can also produce customized activated carbon with various specifications according to customer requirements.

Activated Carbon Diagram for Adsorption

Activated Carbon Diagram for Pore Volume Distribution

2. Activated Carbon Physical Properties

True Density2.10-2.20g/cm³
Particle Density0.75-0.85g/cm³
Bulk Weight400-450g/L
Total Pore Volume0.60-0.90cm³/g
Macropore Volume0.30-0.35cm³/g
Mesopore Volume0.05-0.10m³/g
Micropore Volume0.30-0.45cm³/g
Specific Surface Area850-1000m³/g
PH Value6-10

Activated Carbon conforming to GB/T7701-1997 ‘Coal-based Granular Activated Carbon'

3. Activated Carbon Classification

a. Activated carbon can be classified into coal-based activated carbon, wood activated carbon (from fruit shells and wood chips), and activated carbon from resin or polymer in accordance with types of raw material.

b. Activated carbon can be classified according to its shape.

4. Activated Carbon Classification in Accordance with Shape

ShapeCylindrical CarbonCrushed CarbonPowdered CarbonSpherical CarbonBriquetted Carbon

Electroscopic Photo of Activated Carbon

5. Fruit Shell and Wood Activated Carbon

PHIEYOR Brand fruit shell and wood activated carbon is a top-quality carbon, which is produced by using a special process of physical activation of raw material such as fruit shell, hardwood, or wood chips. Large pore volume and high hardness are typical of carbon. It is used in vinylon production, pharmaceutical production, food processing, advanced treatment of potable water, gold extraction, or other industries. Wood Activated Carbon, Nutshell Activated Carbon, Coconut Shell Activated Carbon.

SpecificationHardness (%)Ash (%)Iodine No. (mg/g)Acetic Acid Adsorption (mg/g)Benzene Adsorption (mg/g)
Crushed fruit shell carbonActivated Carbon from coconut shell, apricot stone, and Walnut shell90~ 11000 - 2000500450 - 500
SpecificationDensity (g/L)Ash (%)Particle Size (mesh)Methylene Blue Adsorption (mg/g)Caramel Decolorization (%)
Wood Powdered Ered CarbonHard Wood and Wood Chip Carbon380 - 480< 7180 - 220110 - 140> 80 - 100

6. Granular Activated Carbon Classification Based on Application ( Granular Activated Charcoal)

Granular Activated Carbon

Classification and GB No.Application
Granular Activated Carbon from coal for desulfurization GB/T7701.1-1997To be used for removal of hydrogen sulfide and other sulfides from coal gas
Granular Activated Carbon from coal for solvent recovery GB/T7701.2-1997To be used for recovery of benzene, toluene, xylene, ethers, ethanol, gasoline, chloroform, carbon tetrachloride, etc.
Granular Activated Carbon from coal to be used as catalyst carrier or catalyst GB/T7701.3-1997To be used as catalyst or catalyst carrier in synthetic industry
Granular Activated Carbon from coal for water purification GB/T7701.4-1997To be used for dechlorination, deoiling, and purifying of industrial water and advanced purifying treatment of service and potable water and sewage water
Granular Activated Carbon from coal for air purification GB/H701.5-1997To be used for air purification and gas separation and refinement.
Granular Activated Carbon from coal for protection GB/T7701.6-1997To be used in the production of impregnated carbon and filling of all types of industrial protective equipment
Granular Activated Carbon from coal for high-efficiency adsorption GB/T7701.7-1997To be used for gas-phase and liquid-phase adsorption of harmful chemicals, removal of organic vapors, filtration of harmful gases, and air deodorization

7. Columnar Coal-Based Activated Carbon Series ( Cylindrical Activated Carbon )

Phieyor Brand coal-based columnar activated carbon is manufactured from strictly selected top-quality coal by a series of processes such as crushing, grinding, mixing, extruding, carbonizing, and activating. lt features high mechanical strength, regular from, uniform particle size, large specific surface area, sufficient macropore, mesopore, and microporosity, high adsorption velocity low bed resistance, easy regeneration, and endurable use. The selection of coals and different degrees of carbonization and activation enables activated carbon to possess various properties.

The activated carbon produced in accordance with Chinese standard GB/T7701-1997 differs in properties and application and is classified into 6 series.

Columnar Activated Carbon

⑴ Columnar Coal-Based Activated Carbon for Desulfurization

TypeDiameter mmMoisture %Hardness %Sulfur Capacity mg/g
ZL-3.0Φ 3.0≤5≥90800-900

⑵ Columnar Coal-Based Activated Carbon for Solvent Recovery

TypeDiameter mmMoisture %Hardness %CCL4 Adsorption %Ash %CCL4 Bulk Density (g/L)
DH-3.0 (A)Φ 3.0≤3≥90≥6010>400
DH-3.0 (B)Φ 3.0≤3≥90≥708>360
DH-4.0Φ 4.0≤3≥90≥7012>360

Note: (A)-up-to-standard product (B)-First-grade product

⑶ Columnar Coal-Based Activated Carbon Used as Catalyst Carrier

Diameter mmΦ4.0Φ3.0Φ2.0Φ1.5
Moisture %≤5≤5≤5≤5
Hardness %≥95≥95≥95≥95
CCL4 adsorption %70 - 8070 - 806060
Ash %12 - 810 - 812 - 812 - 8
Bulk density (g/L)360 - 380360 - 380>400>400

⑷ Columnar Coal-Based Activated Carbon for Water Purification

Diameter mmΦ1.5Φ2.5
Moisture %≤5≤5
Hardness %≥90≥85
Iodine No. Mg/g≥850≥700
Bulk density (g/L)~ 500~ 500

⑸ Columnar Coal-Based Activated Carbon for Air Purification

Diameter mmΦ4.0Φ4.0Φ4.0
Moisture %≤5≤5≤5
Hardness %≥95≥95≥95
Iodine No. Mg/g≥900≥1050≥1100
Ash %≤12≤10≤8
Bulk density (g/L)>400>380>360

⑹ Columnar Coal-Based Activated Carbon for Adsorption

TypeDX 1.5DX 3.0DX 4.0DX 1.5
Diameter mmΦ1.5Φ3.0Φ4.0Φ1.5
Moisture %≤3≤3≤3≤3
Hardness %≥90≥90≥90≥90
CCL4 adsorption %607070≥40min benzene life

⑺ ZSN series Coal-based Activated Carbon for Desulfurization and Denitrification

Phieyor Brand activated carbon for desulfurization and denitrification is a semicoke activated carbon, which is made from strictly selected top quality coal and blended coal by a series of processes comprising grinding of coals, metering, and mixing of coal powder with tar and water, extrusion of the mixed material into columnar grains under oil pressure followed by carbonization, activation, and oxidation.

The ZSN has a unique porous structure, better abrasion and pressure resistance, and excellent desulfurizing and denitrifying properties. It is designed especially for flue gas desulfurizing and denitrification units for coal-fired boilers in thermal power plants, and steel and iron sintering machines in order to cope with acid rains in air pollution.

As is shown in the process flow chart of the desulfurizing and denitrifying unit, activated carbon is moving in fluidizing bed, accompanying adsorption, catalysis, and then desorption with steam and regeneration. So regular shape, fluidity, high abrasion and pressure resistance, and good desulfurization and denitrification are essential to this kind of activated carbon. At the very beginning, a high degree of activation of the carbon is not required and it will be gradually activated during the period of operation and regeneration.

Major Properties

Pressure resistance40kg/cm2
PH7 - 8
Bulk density~ 600g/L
The ratio of mesopore volume to total pore volume≥20%
Acid functional group3%
SpecificationCylindrical carbon, diameter Φ5~10 (Type: ZSN5.0, ZSN7.0, ZSN9.0, ZSN10.0 )

⑻ Columnar Coal-Based Activated Carbon for High Benzene Adsorption

Phieyor Brand activated carbon for high benzene adsorption is specially designed coal-based high-efficiency adsorbent carbon, which is made in columnar form from strictly selected top quality coal by intensive activation. High mechanical strength regular shape, uniform particle size, large specific surface area, and satisfactory system of micropore, mesopore, and macropore are characteristic of this activated carbon, having the advantage of rapid adsorption, low bed resistance, ease of regeneration, and endurability. The high adsorption capacity for all organic solutes and vapors is expected over a wide concentration range. The product is conforming to standard GB/T7701.6-97 concerning coal-based activated carbon for high-efficiency adsorption.

Physical Properties

True density~2.20 g/cm3
Particle density~0.75 g/cm3
Bulk density~400 g/L
Total pore volume~0.90 cm3/g
Macropore volume~0.35 cm3/g
Mesopore volume~0.10 cm3/g
Micropore volume~0.45 cm3/g
Surface area~1000 cm3/g
PH value7-9

Application: To be used for gas-phase and liquid-phase adsorption of harmful substances, removal of all organic vapors, and air deodorization. In the automotive power system, it is used to adsorb residual gasoline vapor in jet combustion in the carburetor system, to save energy effectively, and to remove gasoline vapor from power so as to improve the inside environment of the automobile.


TYPEMoisture (%)Diameter (mm)Hardness (%)C6H6 Adsorption (%)CCL4 Adsorption (%)

8. Crushed Activated Carbon ( Crushed Activated Charcoal )

Crushed Activated Carbon

⑴ PJ series of Coal-based Crushed Activated Carbon

Phieyor Brand PJ series of coal-based crushed activated carbon is made from strictly selected by using special technology. It features a highly developed porous structure, large specific surface, especially large micropore volume, and great hardness, wears, and impact resistance. It has fast adsorption velocity and high adsorption capacity and consequently. It is in favor of adsorption of organic solutes, free chlorine, and harmful gases in the air, so it is the best choice for the advanced treatment of municipal drinking water, water dechlorination, decolorization, and deodorization. It plays a non-fungible important role in the preparation of highly purified water and artificially mineralized water and an increasingly significant role in the purification of boiler feed water and wastewater.

Application: PJ series of coal-based activated carbon applies to the advanced purification of municipal drinking water, water dechlorination, decolorization, and deodorization. It is also a top-grade purifying material to be used in the preparation of highly purified water and artificially mineralized water, in prior removal of COD and other detrimental impurities in the large volume feed water, in order to raise the boiler efficiency and prolong its service life. It can effectively remove COD, color, odor, and so on. Large-grain activated carbon can fill filters for air purification.

Particle size Distribution (mm)2.5-0.51.6-0.40.9-0.180.5-0.15
Diameter  (mm)~1.6~0.9~0.6~0.3
Moisture (%)5555
Hardness (%)90908585
Specific Surface area (m/g)900~1050900~1050~950~950
Ash (%)
Bulk Density (g/L)400~550400~550450~600450~600
Methylene blue Adsorption (mg/g)150.180.200150.180.200150.180150.180
Iodine No. (mg/g)900.950.1000.1050900.950.1000.1050900.950900.950
Half- Dechlor (cm)55//
CCL4 Adsorption (%)

⑵ YPJ Series Coal-based Briquetted Crushed Activated Carbon

YPJ series of briquetted crushed activated carbon is made as high-quality activated carbon from strictly selected coals of different mineralization degrees to scientific formulation using a series of processes such as superfine pulverization, high-pressure briquette without binder, carbonization, and activation. lt has high mechanical strength and maintains both sufficient macro and mesoporosity of bituminous coal-based activated carbon and developed microporosity of anthracite-based activated carbon. Great surface area, the adequate proportion of micropore, mesopore, and macropore volumes, and their adjustability are characteristic of the activated carbon. lt can be best used for military, civilian, scientific research, and nuclear protection applications, especially for high purification of potable water, as well as for treatment of high-quality water.

Physical Properties

Specific surface area950-1150m2/g
Mesopore volume0.15-0.25m3/g
Micropore volume0.5-0.7 m3/g
Bulk density450-500g/L
PH value7-10

SpecificationMoisture (%)Hardness (%)Particle Size (mesh)Methylene Blue Adsorption (mg/g)Iodine No. (mg/g)CCL4 Adsorption (%)
YPJ0.9≤5≥9012x40≥200900.950 1000.105060.65.70
YPJ2.0 (A)≤5≥9010x32≥200900.950 1000.105060.65.70
YPJ2.0 (B)≤5≥908x32≥200900.950 1000.105060.65.70

9. Powdered Activated Carbon ( Powdered Activated Charcoal )

FJ Series of Powdered Activated Carbon

Powdered Activated Carbon

Phieyor Brand FJ series of powdered activated carbon can be manufactured with different finely divided sizes, adsorptive properties, and decolorization capacities. FJ series activated carbon has extremely fast adsorption velocity and flocculation effect and aid-filtering effect. So it has won high praise from water supply works and sewage treatment plants thanks to its low capital investment and operation cost. lt finds wide application in food processing, pharmaceutical production, decolorization crystallization Jiltration, and refinement, and it is also an indispensable material for fabrication of AC foamed plastics products.

SpecificationMoisture (%)Iodine No. (mg/g)Methylene Blue Adsorption (mg/g)Particle Size (mesh)

Application: FJ series of powdered activated carbon features high adsorption velocity, strong decolorization power, and flocculation, catalysis, and aid-filtering effects, and therefore can be widely used in water supply works and sewage treatment plants, as well as in food processing, pharmaceutical production, decolorization crystallization filtration, refinement, etc. In foreign countries, it is largely used for environmental protection and garbage disposal plants.

10. Spherical Activated Carbon ( Spherical Activated Charcoal )

Coal-based Spherical Activated Carbon

Spherical Activated Carbon

Phieyor Brand coal-based spherical activated carbon is made from strictly selected top quality coal and coal pitch by using a series of processes such as mixing in scientifically rational proportion, pulverization, spheronisation with added excellent binder on a disk sermonising machine, forming different diameter of spheres, oven-drying, carbonization, activation and screening, and packing. This high-grade activated carbon features high mechanical strength, large specific surface area, good fluidity, best packing property, low bed resistance. Developed macro-and mesopore structure, the rational, proportion of pore volumes of different types of pores, and pore adjustability are typical of this activated carbon.

It is the best material to be used as a catalyst carrier in the production of impregnated carbon. The activated carbon is an optimal option in the national defense industry, scientific research, environmental protection, municipal sewage water treatment (in dyeing explosive industries), municipal water purification.

Physical Properties

Specific surface area1000 m2/g
Bulk weight450-470 g/L
PH value8-10
Macropore volume0.35~0.4 cm3/g
Mesopore volume0.2 cm3/g
Ash10 %

Specification and Properties

Moisture (%)≤3≤3≤3
Hardness (%)>85>90>90
Bulk density (G/L)~450~450~480
Water absorption (%)≥78

Ash (%)<10<10<10
Particle size Diameter (mm)Φ1.5Φ2.0Φ5.0
Particle size Diameter range (mm)Φ1~2.75Φ1.5~3Φ3.5~7.5
PH6 - 106 - 106 - 10
Iodine No. (mg/g)950900950
CCL4 Adsorption (%)≥ 60

Methylene blue adsorption (mg/g)
170Benzene adsorption >34%
Dynamic Activity chloroethane≥28′

Dynamic Activity against benzene≥45′

11. Honeycomb Activated Carbon ( Honeycomb Activated Charcoal )

Honeycomb Activated Carbon

12. Post-treated Products

Post-treated Activated Carbon Products

Acid-treated activated carbonTo reduce ash content and floatable fines, and increase acidityAsh decreased from 10-15% to 5-8% PH decreases from 8-10 to 6-80.
Water-washed activated carbonTo reduce floatable fines and solve the floating problems.Bulk density increases from 350-380g/L to 400-450g/L
Coated activated carbonTo decrease fines emerging from carbon surface and improve surface smoothness.Coated with resin to make the surface smooth

The following activated carbon can be made at the customers' request.

Impregnated Activated Carbon

TypeApplicationMain Properties
KOH-impregnated Activated CarbonTo be used as desulfurization catalystPotassium 10% Moisture<15% Desulfurization
Silver-impregnated Activated CarbonTo eliminate germs and viruses in pure waterBacteriostasis, sterilization, and removal of a trace of harmful pollutants. Improvement of water quality. Silver 03%. Specification: Φ1.5, 8x30 mesh, 8x20mesh etc.
LiBr-impregnated desiccantTo fill self-rescuersLiBr 20%. CO breakthrough for 60 minutes ≤200ppm
Cupric Sulfate-impregnated activated carbonTo protect against organic vaporsC6H6 life ≥80min
Sodium carbonate-impregnated activated carbonTo protect against acid gasesSO2 and NO2 life at 30g/min,≥30min

Phieyor Brand impregnated activated carbon is made from selected high-quality activated carbon by impregnating with different impregnants.

The resultant product has both good adsorption and catalysis and provides all-purpose protection not only against toxic gases but also against harmful gases such as acid gases, ammonia, and carbon monoxide. Desiccants thus made can effectively adsorb water vapor from gases. Wide use is found in national defense, industrial hygiene, and safety, environmental protection, etc.

⑶ New Type Nitrogen Catalytic Deoxidant

Raw material gasInert gases such as nitrogen, argon, helium, and oxygen content below2%. Suitable for advanced purification of gases below 0.1%.
Operation condition280℃, pressure of raw material gas above 0.5kg/cm2
Capacity of deoxidation1200L oxygen/kg, 1500L oxygen/kg (15L oxygen/kg for copper series)
Empty tower Velocity2000 - 8000hr-1

New type nitrogen catalytic deoxidant is made by using activated carbon as a carrier and containing MgO and MnO2 catalysts. The deoxidant is used for the purification and deoxidation of nitrogen gas or inert gases (oxygen content below 2%).

The deoxidant finds wide use in the production of semiconductor devices, electronics, integrated circuits, silicon single crystal, and germanium single crystal, and where high purity nitrogen is needed. lt is also used for thermal treatment of special steel, removal of oxygen from boiler water, spinning of chemical fibers, production of special refractories, and manufacturing, where high purity nitrogen is provided as protection gas.

13. Formed Activated Carbon Products

Meeting the demand of drinking water and air Purification market, formed Activated Carbon filter elements have been developed.

Thermal die-cast Activated Carbon filter element:

Acid-treated activated carbon with a large specific surface, strong adsorption, and high filtering efficiency is selected as the major starting material. The carbon is die-cast with a non-toxic and odorless binder and then coated with non-woven cloth and food-grade protection screen on surfaces. On both ends are mounted end caps and rubber gaskets.

The filter elements are used for single-element and multi-element water purifiers and osmotic membrane water purification systems.

Formed Activated Carbon Filter Element

Application: Effective removal of impurities such as rust, incrustation, fine dust, etc, and harmful substances such as residual chlorine, chloroform, trichloroethylene, mercury, arsenic ions, and organic pollutants. Adsorption of chlorine, arsenic, lead, and cyanides is 95%.

Specification: Length:9.75" Diameter:2.5" OD63.5mm/ID30mmxL250mm Φ26/Φ18x90 Φ18/Φ10x70 Products of different diameters and lengths are supplied at the customers' request.

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