Iodine value 800–1100 mg/g | columnar, powder and coconut shell granular types | for VOC exhaust and water purification
Choosing by use
Decide the use first: for VOC exhaust (paint booths, spray booths), choose columnar or granular types (iodine value from 800); for fine decolorizing in water treatment or ultrapure water, choose coconut shell types (iodine value 1000–1100). Coconut shell carbon has an even pore structure, low ash and can be regenerated many times; columnar carbon has low bed pressure drop, for high-airflow gas-phase adsorption equipment.
Specifications
| Type | Form | Iodine value (mg/g) | Recommended use |
|---|---|---|---|
| Standard general type | Powder | 800 | Industrial wastewater treatment, basic decolorizing |
| Standard enhanced type | Powder | 900 | Advanced industrial purification, dye wastewater |
| Standard granular type | Granular | 800 | Gas filtering, air deodorizing, VOC adsorption towers |
| Coconut shell type | Coconut shell powder | 1000 | Fine decolorizing, food / chemical process water |
| Coconut shell granular 1100 type | Coconut shell granular | 1100 | Ultrapure water treatment, VOC adsorption and recovery |
The higher the iodine value, the greater the adsorption capacity. Choose particle size to suit the equipment bed; common sizes are 1.5 / 2 / 3 / 4 / 6 / 8 / 9 mm, on request.
Columnar / granular and coconut shell types: what each is for
Columnar / granular activated carbon
- Gas-phase adsorption (VOC, ozone, ammonia).
- Low bed pressure drop, for high-airflow duct equipment.
- Carbon tetrachloride adsorption about 30–75%.
- Common equipment: UV photo-oxidation units, catalytic combustion desorption units, adsorption towers, paint and spray booths.
- Many particle sizes (1.5–9 mm) to fit different tower designs.
Coconut shell activated carbon
- Southeast Asian coconut shell raw material with an even pore structure.
- Large specific surface area for liquid-phase adsorption.
- High strength, resists powdering, long regeneration life.
- Low ash and impurities.
- For drinking water, pure water and food / pharmaceutical water purification.
Equipment and applications
| Application | Typical equipment / use | Recommended type |
|---|---|---|
| VOC exhaust treatment | Adsorption towers, catalytic combustion units | Granular, iodine value 800+ |
| Spray coating exhaust | Paint booths, spray booths, coating lines | Columnar / granular, 3–6 mm |
| Pure / ultrapure water systems | EDI pretreatment, RO prefiltration | Coconut shell granular, iodine value 1100 |
| Industrial wastewater | Wastewater stations, COD / color removal | Powder, iodine value 800–900 |
| Food / beverage | Decolorizing, deodorizing, odor removal | Coconut shell type, confirm food grade |
| Air purification | Gas mask filter media, air deodorizing | Granular, to equipment specification |
Simple incoming checks on the line
Reference indicators for receiving (not formal testing, for an initial judgment):
- Weight: good activated carbon is bulky but relatively light (indicating high porosity).
- Bubbles: in water, it gives many bubbles that last (many pores, thorough degassing).
- Water: the water stays clear after soaking (low ash and impurities).
- Strength: it shouldn’t powder easily under light hand pressure (structural strength, which affects service life and replacement interval).
Common questions
Which activated carbon is for VOC exhaust? Columnar or granular types with an iodine value of 800 or more, in sizes to fit the adsorption tower.
Request a quote
Send the iodine value, particle size and quantity, or ask for samples or a regular supply arrangement. For availability, please ask. Request a quote →