With tightening environmental regulations, the advancement of sustainable production processes, and rising occupational health and safety standards, the filtration of gases generated in industrial facilities has become a critical necessity. In gas phase adsorption applications, selecting the right activated carbon based on the type and concentration of pollutants optimizes operational costs while maximizing filtration efficiency.
In this article, we will examine in detail the technical specifications of our AURASORB Pellet Activated Carbon Series (AC30, AC40, AC50, AC60, AC70), which are specially developed for gas phase applications and are available in our stocks. We will also cover their roles in critical processes such as ventilation, VOC (Volatile Organic Compound) removal, restaurant/paint booth filters, and flue gas treatment.
  1. What is Gas Phase Adsorption and Why is the Role of Pellet Activated Carbon Critical?
Gas phase filtration, unlike liquid phase applications, is characterized by higher diffusion rates and variable molecular sizes. Activated carbon traps gas molecules on its surface (adsorption) thanks to its microscopic pore structure (micro, meso, and macro pores). Our cylindrical pellet-formed AURASORB series represents the gold standard for gas phase purification processes and offers the following structural advantages:
  • Low Pressure Drop: The pellet structure exhibits minimum resistance in gas flow lines, preventing fans from being overloaded and optimizing energy consumption.
  • High Attrition Resistance: These pellets possess high physical strength, which prevents pellet dust formation caused by friction and extends the service life of filter systems.
  • High Internal Surface Area (BET): Its high square meter surface area per gram ensures that a greater number of gas molecules are captured.
  1. The AURASORB Product Family: Technical Solutions from AC30 to AC70
Our AURASORB series is designed with different activation levels and pore structures to respond to the variable dynamics of gas phase applications.
  • Aurasorb-AC30 & AC40: Generally offer economic and high-performance solutions for low to medium-concentration odor control, commercial ventilation systems, and light industrial gas filtration processes.
  • Aurasorb-AC50 & AC60: Stand out with an optimized pore structure for capturing medium to high-density volatile organic compounds (VOCs) in the emission lines of industrial plants and for cleaning chemical process gases.
  • Aurasorb-AC70: This product features the highest adsorption capacity and internal surface area in the series. It offers maximum saturation periods, particularly in high-concentration solvent recovery systems and the most demanding industrial gas purification towers.
  1. Broad Application Areas of the AURASORB Pellet Activated Carbon Series
  2. Industrial Ventilation and Odor Control
  • Wastewater Treatment Plants: Ensures high-efficiency capture of Hydrogen Sulfide (), ammonia, and mercaptan gases, which are released in pumping stations and sludge drying units and emit sharp odors to the environment.
  • Food and Rendering Facilities: Pellet carbon beds play a critical role in flue gas filtration in industries that generate intense organic odors, such as animal waste processing, fishmeal factories, and yeast production.
  1. VOC (Volatile Organic Compound) and Industrial Emission Removal
  • Chemical and Petrochemical Production: Controls hazardous hydrocarbon emissions released from the breather lines of tank farms, chemical filling stations, and reactor chimneys.
  • Plastic and Rubber Injection: Neutralizes the odor and toxicity of acrolein, formaldehyde, and other plastic-derived gases released during the high-temperature processing of raw materials.
  1. Solvent Recovery
  • Packaging and Printing: Ensures that solvents such as Ethyl Acetate, Isopropyl Alcohol (IPA), and Toluene used in rotogravure and flexographic printing lines are captured from the gas phase and recovered back to the factory.
  • Textile and Artificial Leather Coating: Offers high efficiency and long mechanical life in solvent recovery systems for DMF (Dimethylformamide) used in polyurethane coating processes.
  1. Industrial Paint Booths and the Automotive Sector
  • Auto Paint and Wet Paint Booths: Pellet carbon filter panels are used in suction lines to filter solvent-based chemicals and thinner odors (BTEX - Benzene, Toluene, Xylene) spread into the environment during paint application.
  • Powder Coating and Curing Lines: Captures smoke and the odor of acrylic/epoxy-based volatile chemicals released during the high-temperature curing/baking of paint, ensuring clean air is discharged into the environment.
  1. Restaurants, Hotels, and Industrial Kitchens
  • Extractor Hood Flue Lines: Absorbs heavy grease odors and smoke released in restaurants featuring intense grilling, frying, and large-scale food production.
  • Prevention of Neighborhood and Environmental Disturbances: Prevents legal complaints and penalties that businesses located in city centers or beneath residential buildings might face due to food odors. Pellet carbon cassette filters integrated into the ventilation duct block these odors by over 90%.
  1. Ready-Made Filter Systems and Ventilation Equipment
Thanks to its pellet form structure, the AURASORB series forms the heart of many ready-made mechanical filter systems:
  • Cylindrical Carbon Cartridges: Filled inside bayonet-type cartridge filters that can be easily installed and removed in air handling units, providing effective cleaning in high-flow air currents.
  • Cassette and Panel Filters: Placed behind dust filters in Air Handling Units (AHU) or fresh air units, filled into cassettes to capture the gas and odor phase.
  1. Flue Gas Treatment and Emission Control Systems
  • Dry and Semi-Dry Scrubber Systems: Laid in vertical beds inside large flue treatment towers (adsorbers) designed to capture harmful acidic gases, dioxins, furans, and heavy metal vapors emitted from the main chimneys of chemical manufacturing, textile, metal plating, and plastic recycling factories.
  • Regulatory Compliance: It is the most reliable and economical filter bed solution for bypass lines installed at the chimney outlets of factories that fail to meet the emission limits set by the Ministry of Environment.
  1. Biogas, Natural Gas, and Process Gas Purification
  • Siloxane and Sulfur Removal: AURASORB pellets act as a protective shield in cleaning siloxanes (silicon-based compounds) and sulfurous gases that damage gas engines and turbines, thereby extending engine life.
  • Carbon Dioxide () Gas Purification: Purifies  gas to be used in the beverage sector or industry by removing odors and trace hydrocarbons, bringing it to food-grade purity.
  1. Aviation, Defense, and Clean Room Technologies
  • Bunker and Ventilation Filtration: Our high-activation pellet carbons are preferred for trapping toxic gases in military bunkers, nuclear facility control rooms, and industrial gas mask filter cartridges.
  • Semiconductor and Microchip Production: Filters acidic, basic, or organic trace gaseous pollutants (AMCs) in cleanrooms where even the slightest molecular contamination can disrupt sensitive production lines.
In industrial gas purification and odor filtration processes, reaching the product on time is as vital for continuity as product quality itself. If rapid replacement is not performed when carbon beds reach saturation, it leads to a halt in facility emissions, loss of efficiency, or legal penalties.

Our Aurasorb-AC30, Aurasorb-AC40, Aurasorb-AC50, Aurasorb-AC60, and Aurasorb-AC70 pellet activated carbon products, offered under the assurance of Carbontech, are currently available in our stocks to support your uninterrupted production processes.

To select the most suitable activated carbon type for your project, request Technical Data Sheets (TDS / MSDS), and receive a price quote tailored to your company, you can contact our expert team at any time.
🌐 Our Website: www.carbontech.net.tr
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