Product Overview
Impregnated coal carbon ARC-A is a 4 mm coal-based columnar activated carbon produced through steam activation and subsequent impregnation treatment. Engineered specifically for gas-phase ammonia removal, it targets trace ammonia, low-concentration organic amines, and their derivatives in industrial exhaust and ventilation streams. The 4 mm pellet geometry delivers high mechanical strength and low pressure drop in fixed-bed vessels, ensuring reliable performance in continuous industrial operations.
Key Application Areas
- Industrial Odor Control: Neutralizes ammonia and alkaline off-gases from chemical processes and waste handling facilities, preventing community complaints and regulatory violations.
- Livestock & Poultry Ventilation: Removes ammonia buildup from animal housing and manure processing, improving air quality for worker safety and animal welfare.
- Laboratory Ventilation Systems: Captures trace amine vapors and alkaline fumes from research and analytical labs, protecting personnel and maintaining indoor air quality.
- Fertilizer Plant Off-Gas Treatment: Adsorbs ammonia and organic amine emissions from fertilizer manufacturing, supporting compliance with ambient air quality standards.
- Chemical Processing Exhaust: Treats vent streams containing alkaline byproducts and amine solvents, preventing corrosive emissions and enabling safer plant operations.
Specifications
| Technical Specifications | ARC-A | Unit |
| CTC value (base charcoal) | > 60 | % -wt |
| Moisture content | < 25 | % -wt |
| Column carbon diameter | 4 | mm |
| Stacking density | 780 ~ 820 | kg/m³ |
| Intensity | > 90 | % |
| Specific surface area (base charcoal) | > 900 | m²/g |
| Grain size > 6 Item (3.35 mm) | > 95 | %-wt |
Available particle size
- 4 mm
- 3 mm
- 2 mm
- 4×10 Mesh ( 1.7 ~ 4.75 mm)
Packaging
- The 25 kg / Package
- The 500 kg / Package
Key Advantage
- Impregnated Surface Chemistry: Specially treated reactive sites provide high-efficiency neutralization of alkaline gases at low concentrations, outperforming standard unimpregnated carbons.
- High Mechanical Integrity: >90% pellet strength resists crushing and attrition during handling, pneumatic transport, and fixed-bed operation, minimizing fines generation.
- Low Pressure Drop Design: The 4 mm columnar form ensures stable hydraulic performance and even gas distribution, reducing blower energy consumption in high-flow systems.
- Proven Industrial Durability: Manufactured under GB/T 7702 standards with consistent batch quality, delivering predictable service life and reliable changeout scheduling.
How ARC-A Chemisorbs Ammonia and Amines
Ammonia and organic amines are polar, highly soluble gases that tend to dissolve into surface moisture rather than adsorbing into dry carbon pores. Standard coal pellet carbon relies on physical adsorption driven by van der Waals forces, which captures non-polar organic vapors effectively but performs poorly against alkaline nitrogen compounds. In ammonia-rich exhaust streams, this limitation leads to rapid breakthrough and re-release of contaminants.
ARC-A solves this as an impregnated coal carbon engineered for ammonia removal. During manufacturing, controlled impregnation creates reactive acidic sites across the coal surface. When alkaline gas flows through the fixed bed, these sites trigger chemisorption—a chemical reaction that binds ammonia and amine molecules to the carbon matrix. This forms stable compounds rather than temporary physical deposits, preventing the gases from re-entering the stream during temperature or humidity changes. The result is consistent ammonia removal even at low inlet concentrations where standard unimpregnated coal columnar carbon cannot perform.
ARC-A vs Standard Coal Pellet Carbon
Standard coal pellet carbon grades such as P-80 and the PL series are designed for organic vapor and odor control through physical adsorption. They deliver strong performance against solvents, hydrocarbons, and general VOCs in industrial exhaust and ventilation systems. However, their capacity for alkaline gases like ammonia is inherently limited. In mixed gas streams containing both organics and ammonia, standard carbon may continue adsorbing solvents while allowing ammonia to break through prematurely.
ARC-A bridges this gap as an impregnated coal carbon with specialized surface chemistry for ammonia removal. While ARC-AL serves as a cost-effective alternative with a CTC >50% base for moderate ammonia loads, ARC-A uses a higher-activity CTC >60% foundation for enhanced performance in demanding streams. The 4 mm pellet geometry remains the same, ensuring compatible bed design and pressure drop characteristics. Choose standard coal columnar carbon for general VOC and odor duty; select ARC-A when alkaline gas capture is the primary requirement.