Impregnated
Activated Carbon
Chemically enhanced carbon for targeted gas removal. KOH, KI, sulfur, and custom impregnations for H₂S, mercury, and acid gases.
Product Overview
Impregnated activated carbon combines physical adsorption with chemical reaction to achieve superior removal of specific target gases. By infusing the carbon with reactive chemicals, we create a dual-mechanism adsorbent that can remove contaminants that standard carbon cannot effectively capture.
Our impregnation facility can process both pellet and granular carbon with a wide range of chemicals. We offer standard formulations as well as custom impregnation to match your exact application requirements.
Impregnation Types
KOH / NaOH Impregnated→
H₂S, SO₂, HCl, acid gas removal from biogas, natural gas, landfill gas
KI Impregnated→
Mercury vapor removal from flue gas, natural gas, industrial exhaust
Sulfur Impregnated→
Mercury capture in coal-fired power plants, waste incineration
Silver Impregnated→
Antibacterial water treatment, point-of-use filters, bacteriostatic carbon
KMnO₄ Impregnated→
Ethylene removal, formaldehyde removal, odor control
K₂CO₃ Impregnated→
Acid gas scrubbing, H₂S and SO₂ removal with lower corrosivity
CuO / MgO Impregnated→
HCN, arsine (AsH₃), phosphine & acid gas removal from syngas and semiconductor exhaust
Phosphoric Acid Impregnated→
Ammonia and alkaline gas removal
Common Applications
- Biogas H₂S desulfurization
- Natural gas sweetening
- Landfill gas treatment
- Mercury removal from flue gas
- Waste incineration emission control
- Indoor air quality (formaldehyde)
- Semiconductor fab exhaust
- Odor control systems
Technical Specifications
| Base Carbon | Coal pellet / Coconut granular |
| Forms | Pellet (Φ0.9–8mm) & Granular (4×8–12×40) |
| Impregnants | KOH, NaOH, KI, K₂CO₃, KMnO₄, CuO, MgO, S |
| H₂S Capacity | 0.15 – 0.30 g/cm³ (KOH type) |
| Iodine Number | 400 – 900 mg/g |
| pH | 9 – 12 (alkaline types) |
| Moisture | < 5% |
| Impregnation Rate | 5 – 20% by weight |
| Hardness | >90% |
| Bulk Density | 0.40 – 0.60 g/cm³ |
Response within 24 hours
Impregnation Grades
Related Products
Why Choose Hojee
Factory Direct
No middlemen. Direct from our 3 production bases. Best prices guaranteed.
Quality Tested
Every batch tested with full COA. ISO 9001 certified. SGS/BV third-party testing.
Custom Specs
Custom particle size, iodine value, packaging, and branding. MOQ 3 tons.
Fast Delivery
7-10 days standard. Expert logistics team handles all export documentation.
Packaging Options
PP woven bags
Standard export, palletized
Jumbo bags
Bulk with pallet, forklift ready
Super sacks
Large-scale industrial
OEM packaging
Your brand, free design
Frequently Asked Questions
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Custom Impregnation Solutions
Tell us your target gas, concentration, and flow rate. Our engineers will recommend the optimal formulation.
Discuss Your Project