Coal-Based Columnar Activated Carbon for Gas Purification

Product Description

Product Description

Coal-based columnar activated carbon is manufactured using high-quality anthracite as the raw material; it undergoes activation and advanced refining processes to produce a specialized carbon medium for gas filtration.

This coal-based columnar activated carbon features a well-balanced pore structure and a large specific surface area. It is highly effective in purifying waste gases-such as H2S-and is characterized by its light weight, strong adsorption capacity, excellent abrasion resistance, and high mechanical strength, ensuring a long service life in wastewater treatment applications.

It is widely utilized in paint spray booths, for the purification of organic solvents and volatile toxic gases, in general gas treatment processes, for the purification of industrial and domestic water, for solvent recovery, and for the removal of odors from wastewater, among other applications.

Advantages

1. Strong Adsorption Performance, Wide Range of Applications
With a specific surface area reaching 500-1500 m²/g and a highly developed microporous structure, it demonstrates efficient adsorption capabilities for harmful gases-such as benzene derivatives, alcohols, and carbon tetrachloride-as well as for organic substances, residual and heavy metal ions found in water. It is particularly well-suited for VOC abatement, advanced purification of tap water, and the pretreatment of industrial wastewater.

2. High Mechanical Strength, Abrasion-Resistant
Its mechanical strength typically exceeds 90%; it resists fragmentation under high-pressure conditions or during frequent backwashing cycles, thereby minimizing the risk of carbon fines leakage and system clogging, and ensuring long-term, stable operation. Compared to wood-based or coconut-shell-based activated carbons, coal-based columnar activated carbon offers superior abrasion resistance.

3. Optimized Pore Structure, High Mass Transfer Efficiency
Featuring a multi-tiered pore system comprising micropores (<2 nm), mesopores (2-50 nm), and macropores (>50 nm), it not only provides an abundance of adsorption sites but also facilitates the rapid diffusion of adsorbates, thereby enhancing both adsorption kinetics and capacity.

4. Highly Regenerable, Extended Service Life
Once adsorption saturation is reached, the material can be regenerated using high-temperature steam or hot air; with a recovery rate exceeding 70%, it can be reused multiple times, leading to significant reductions in operating costs. Its average service life spans 2-3 years-approximately 1.4 times that of standard coal-based activated carbons.

5. Low Cost, Outstanding Cost-Effectiveness
Manufactured from high-quality anthracite-a raw material with a stable supply and low cost-it is ideally suited for large-scale industrial applications. In contexts such as wastewater treatment and flue gas desulfurization/denitrification, the unit processing cost is significantly lower than that of other adsorption materials.

6. Uniform Morphology, Excellent System Compatibility
Its cylindrical granular form (typically 3-5 mm in diameter) features high bulk density and low bed resistance, making it compatible with various devices-including fixed-bed adsorption columns, air purifier filter cartridges, and gas masks-while ensuring uniform airflow or water flow distribution.

Product Parameters

Iodine Value (mg/g)	≥500	≥600	≥700	≥800	≥900	≥1000	≥1100
Specific surface area ( m2/g)	860	900	1000	1060	1100	1200	1350
Moisture (%)	≤5	≤5	≤5	≤5	≤5	≤5	≤5
Ash Content (%)	≤15	≤15	≤14	≤14	≤14	≤13	≤12.5
Hardness (%)	95	95	95	95	95	95	95
Packing Density (kg/m3)	≤600	≤600	≤520	≤500	≤500	≤500	≤450
Particle size	0.9mm, 1.5mm, 2mm, 3mm,4mm, 6mm, 8mm, 10mm

Applications

1. Indoor and Automotive Air Purification
Targeting harmful gases-such as formaldehyde, benzene, and TVOCs-released following interior renovations, granular coconut shell activated carbon achieves effective removal through passive adsorption. It serves as a core component in air purifiers, fresh air ventilation systems, and formaldehyde-removal packets.

2. Drinking Water and Water Purification
Granular coconut shell activated carbon serves as a critical material in advanced water purification processes. It efficiently removes residual, odors, organic matter, pesticide residues, and certain heavy metal ions from water, thereby significantly enhancing both water safety and taste.

3. Food and Refining
In the production of beverages, alcoholic spirits, MSG, citric acid, and similar products, granular coconut shell activated carbon is utilized for the decolorization, deodorization, and impurity removal of mother liquors, thereby ensuring the purity of product color and food safety.

4. Industrial Waste Gas Treatment and Solvent Recovery
In industries such as chemical manufacturing, printing, and surface coating, granular coconut shell activated carbon is employed to adsorb volatile organic compounds (VOCs)-including benzenes, ketones, and esters-and can be integrated with steam desorption systems to facilitate the regeneration and reuse of solvents.

5. Gold Extraction and Metallurgy
In gold extraction processes utilized by over 70% of the world's gold mines, granular coconut shell activated carbon acts as the primary adsorbent in both the "Carbon-in-Pulp" (CIP) and "Heap Leaching" methods, enabling the efficient recovery of gold-cyanide complexes from solution.