Granulated activated carbon
Granulated activated carbon is made from materials such as hard coal, coconut shells and wood, with each input material yielding different degrees of hardness, abrasion resistance and adsorption pore distribution. To determine which granulated activated carbon is best suited for a specific application, one compares the size of the adsorption pores and the size of the molecules to be adsorbed. Granulated activated carbon is supplied in specific grain sizes, with granulometric ranges for the main grain typically indicated in mesh scale (mesh density per unit of length) or directly in millimetres. The mesh and millimetre values are mutually convertible.
Grain over 0.12 mm in size is considered granulated activated carbon and grain sizes up to 5 mm are used in practice.
Parameters, such as iodine value, methylene blue value, molasses number and dechlorination half length value are provided for easy reference. As other factors affect the adsorption process (e.g. pH, surface polarity, competing adsorption or temperature), we advise that customers carry out laboratory or trial tests prior to application.
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Resorbent – MAC6 4x6 ; MAC6 8x30
Description | Granulated activated carbon made from hard coal by high-temperature steam activation. | |
Parameters | Value [%] | |
Particle size (ASTM D2862) | Min. 90 % | 4x6 (3-5 mm)8x30 (0,6-2,3 mm) |
Specific surface area (BET N2) | Min. 1 000 | m2/g |
Iodine value (ASTM D4607) | Min. 1 000 | mg/g |
Bulk density (ASTM D2854) | 420-500 | kg/m3 |
Methylene blue value | Min. 230 | mg/g |
Ash (ASTM D2866) | Max. 12 | % |
Moisture (ASTM D2867) | Max. 3 | % |
Hardness (ASTM D3802) | Min. 95 | % |
Packaging | BigBag po 500 kg; bag 20 kg |
Resorbent – K 4x8 ; K 8x30
Description | Granulated activated carbon prepared from coconut shells by high-temperature steam activation. | |
Parameters | Value [%] | |
Particle size (ASTM D2862) | Min. 90 % | 4x8 (2,3-5 mm)8x30 (0,6-2,3 mm) |
Specific surface area (BET N2) | Min. 1 000 | m2/g |
Iodine value (ASTM D4607) | Min. 1 000 | mg/g |
Bulk density (ASTM D2854) | 460-500 | kg/m3 |
Ash (ASTM D2866) | Max. 4 | % |
Moisture (ASTM D2867) | Max. 3 | % |
Hardness (ASTM D3802) | Min. 95 | % |
Packaging | BigBag po 500 kg; bag 20 kg |