Coconut Shell Activated Carbon[2]
Overview
Coconut Shell Activated Carbon is a premium-grade adsorbent produced by carbonizing and activating coconut shells under controlled conditions. Its unique microporous structure and high surface area make it ideal for capturing pollutants, gases, and organic compounds. Compared to coal or wood-based alternatives, it offers superior hardness, lower ash content, and renewable sourcing. Widely used in environmental and industrial applications, it is favored for its sustainability and efficiency. The material is chemically inert, ensuring compatibility with diverse processes without releasing harmful byproducts.
Physical and Chemical Properties
The material exhibits a surface area of 1000–1500 m²/g, with pore diameters ranging from 0.5–2 nm, optimized for adsorbing small molecules like VOCs and chlorine. Its granular form (1–3 mm) ensures low pressure drop in filtration systems, while powdered variants (<0.18 mm) are used for rapid adsorption in liquid-phase applications. Thermally stable up to 3500°C, it retains structure in acidic/alkaline environments. Key metrics like iodine value (>1000 mg/g) and methylene blue adsorption (>150 mg/g) indicate its adsorption capacity. Moisture content is typically <5% to prevent performance degradation.
Main Applications
In air purification, it removes formaldehyde, benzene, and odors in HVAC systems, masks, and industrial scrubbers. For water treatment, it decolorizes, dechlorinates, and eliminates organic contaminants in drinking water and wastewater plants. The gold mining industry relies on it for cyanide-based gold recovery due to its high abrasion resistance. Food and pharmaceutical sectors use it for decolorizing syrups, oils, and APIs. Emerging applications include energy storage (supercapacitors) and gas separation (methane purification).
Safety and Storage
Classified as non-hazardous, it poses minimal risk but generates dust during handling. Use NIOSH-approved respirators (N95) and gloves to prevent irritation. Avoid contact with strong oxidizers (e.g., peroxides) to prevent exothermic reactions. Store in sealed bags or drums away from moisture and flammable materials. Bulk storage requires temperature-controlled warehouses (<40°C) with relative humidity <60%. Reactivation (thermal or chemical) can restore spent carbon but requires specialized facilities.
B2B Procurement Guide
Specify iodine value (800–1200 mg/g for general use), ash content (<5%), and particle size (mesh 4–200) based on application. For air filters, 4×8 or 6×12 mesh balances flow rate and adsorption. Powdered carbon (325 mesh) suits liquid-phase batch treatments. Verify supplier certifications (ISO 9001, REACH) and request material safety data sheets (MSDS). Bulk orders (20+ tons) may qualify for 10–15% discounts. Sustainable buyers should request FSC or similar eco-certifications for raw coconut shells.
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