Granular Activated Carbon for Air Purification

Raw Material: Bituminous Coal / Anthracite

Applications: Gas Phase Adsorption, VOC Removal, Odor Control, Solvent Recovery, Industrial Air Filtration

Keywords: Granular Activated Carbon, Coal-Based Activated Carbon, VOC Adsorption, Gas Phase Carbon, Air Purification Carbon, Odor Control Media

Product Overview

Coal-based Granular Activated Carbon (GAC) is widely used for gas-phase adsorption applications requiring the removal of volatile organic compounds (VOCs), odors, and other airborne contaminants. Produced from selected coal feedstocks, the material develops a predominantly microporous structure during activation, providing a large internal surface area for adsorption.

Due to its mechanical strength and abrasion resistance, coal-based GAC is commonly used in industrial adsorption vessels, solvent recovery systems, odor control units, and HVAC filtration equipment.

Different grades can be supplied according to adsorption capacity, particle size distribution, pressure drop requirements, and target contaminants.

Key Features

Microporous Structure for Gas-Phase Adsorption

The pore structure is suitable for adsorption of many low-molecular-weight organic compounds commonly found in industrial exhaust streams.

Mechanical Strength

Coal-based activated carbon generally exhibits high hardness and resistance to attrition, helping reduce particle breakdown during operation and media handling.

Low Pressure Drop

Appropriate particle sizing and bed design can help maintain acceptable airflow resistance in adsorption systems.

Compatible with Impregnation Processes

Selected grades may be chemically impregnated to improve adsorption performance for specific contaminants such as hydrogen sulfide (H₂S), sulfur dioxide (SO₂), mercury, and other acid gases.

Regeneration Capability

Depending on contaminant type and operating conditions, activated carbon may be suitable for thermal or steam regeneration processes.

Typical Technical Data

Actual specifications may vary according to product grade and application requirements.

Typical Applications

VOC Control Systems

Used in adsorption units for the removal of organic vapors generated by coating, printing, chemical processing, pharmaceutical production, and manufacturing operations.

Solvent Recovery

Applied in systems designed to recover solvents from process exhaust streams through adsorption and subsequent regeneration.

Odor Control

Suitable for treatment of odor-causing compounds generated in wastewater treatment plants, food processing facilities, rendering plants, and composting operations.

Industrial Air Filtration

Used in air handling systems, process ventilation units, and industrial filtration equipment to reduce airborne contaminants.

Specialized Gas Treatment

Impregnated grades can be utilized for removal of sulfur compounds, mercury, and other specific gaseous contaminants.

Packaging and Storage

Packaging

Available in:

• 25 kg bags

• 500 kg bulk bags

• Customized packaging options

Storage Recommendations

Store in a dry, well-ventilated location away from moisture sources, oxidizing agents, and incompatible chemicals. Packaging should remain sealed until use.

Engineering Support

Technical assistance may include:

• Activated carbon selection

• Bed depth recommendations

• Empty Bed Contact Time (EBCT) evaluation

• Pressure drop assessment

• Media replacement planning

• Adsorption system optimization

Selection Considerations

When selecting activated carbon for gas-phase applications, factors typically evaluated include:

• VOC composition

• Concentration levels

• Airflow volume

• Relative humidity

• Operating temperature

• Required service life

• Pressure drop limitations

• Regeneration requirements

A review of process conditions can help determine the most appropriate carbon grade and system configuration for a specific application.