Air Treatment FM AURA is a high-performance Granular Activated Carbon (GAC) specifically optimized for gas-phase applications. Its pore structure is meticulously engineered to capture and retain airborne contaminants, including Volatile Organic Compounds (VOCs) like solvents, industrial off-gases such as hydrogen sulfide (H 2 ​ S), and various malodorous compounds. The unique pelletized or granular form of FM AURA is designed for optimal gas flow with minimal pressure drop, making it an efficient solution for a wide range of air filtration systems, from industrial scrubbers to commercial HVAC units.

This product’s high density and robust physical properties ensure it can withstand the high-velocity flow and demanding conditions found in most air purification systems, providing reliable and consistent performance.

Technical Evaluation & Competitive Advantage

Higher CTC Activity: The Carbon Tetrachloride (CTC) Activity of FM AURA is a direct indicator of its superior gas-phase adsorption capacity. Our product consistently achieves higher CTC values than general-purpose carbons, meaning it can handle a greater contaminant load and offers a longer service life in air filtration applications.

Tailored Pore Size Distribution: Unlike general-purpose carbons with mixed pore structures, FM AURA’s pore size distribution is optimized to have a higher proportion of mesopores and macropores, which are essential for the effective capture of the larger, heavier molecules found in gaseous streams.

Low Pressure Drop: The uniformity and optimized shape of FM AURA’s granules ensure a lower pressure drop across the filter bed, reducing energy consumption and prolonging the life of your air handling equipment.

Why FM AURA Stands Out

High crush strength (≥95%): resists attrition in deep beds and recirculating systems.

Low dust extrusion → clean commissioning and lower filter fouling.

Tailored impregnation chemistries (base, acid, metal‑salt blends) for targeted capture.

Optimized 3–4 mm diameters tune pressure drop vs mass transfer.

Core Models

AURA PD 3‑CB (3 mm, coal‑based): VOC abatement in process vents and solvent recovery.

AURA PD 4‑CS (4 mm, coconut‑based): IAQ/HVAC odor control with excellent kinetics.

AURA PD 4‑IMP: Impregnated for H₂S/SO₂/NH₃; includes catalytic pathways for irreversible binding.

Typical Specs

Model Highlights & Use‑Cases

1. AURA PD 4‑CB (4 mm, coal‑based): VOC abatement in process vents and solvent recovery.

FM AURA PD 4 CB is a coal-based 4 mm pelletized activated carbon engineered for volatile organic compound (VOC) abatement, process vent treatment, and solvent recovery systems. Produced through high-temperature steam activation and precision pelletizing, it combines high bulk density, high hardness, and optimized microporous structure, making it one of the most reliable grades for industrial air purification.

The cylindrical 4 mm extruded pellets ensure uniform packing, low pressure drop, and excellent mechanical strength, critical for minimizing dusting and maximizing service life in packed beds, adsorption towers, and solvent recovery units.

Key Features & Advantages

VOC Abatement: Effectively removes a wide spectrum of VOCs including hydrocarbons, ketones, aldehydes, and chlorinated organics.

Solvent Recovery Efficiency: High adsorption capacity for organic solvents such as toluene, xylene, ethanol, MEK, and acetone.

Low Pressure Drop: Uniform 4 mm pellets ensure efficient airflow and reduced energy consumption.

High Hardness (>95%): Minimizes attrition and dust generation in high-velocity gas streams.

Thermal Stability: Suitable for cyclic adsorption/desorption processes in solvent recovery.

Regenerable: Compatible with steam or hot inert gas regeneration cycles for extended economic use.

Optimized Pore Structure: Balanced micropores and mesopores allow both high capacity and rapid kinetics.

Typical Applications

Industrial VOC Control: Paint, coatings, adhesives, and resin manufacturing exhaust treatment.

Process Vent Purification: Removal of VOCs and hazardous air pollutants (HAPs) from industrial vents.

Solvent Recovery Systems: Capture and reuse of high-value solvents in pharmaceutical, chemical, and electronics manufacturing.

Air Quality Compliance: Assists facilities in meeting stringent EPA, EU, and CPCB emission standards.

Odor Removal: Controls industrial odors in petrochemical, fertilizer, and rubber plants.

Technical Specifications (Typical)

Base Material: Coal-based

Form: Pelletized (4 mm extrudates)

Iodine Number: 900–1000 mg/g

Surface Area (BET): 950–1100 m²/g

CTC Adsorption: 55–65%

Hardness: >95%

Bulk Density: 0.48–0.52 g/cc

Moisture Content: ≤5%

Ash Content: <10%

Pressure Drop: Low (due to uniform pellet geometry)

Performance Differentiator

FM AURA PD 4 CB outperforms conventional coal-based carbons through its engineered pellet design and tailored pore size distribution. While many air-treatment carbons suffer from dusting and attrition in dynamic gas streams, FM AURA PD 4 CB offers superior hardness and low friability, ensuring longer bed life and consistent VOC capture efficiency. Its regenerability makes it a cost-effective choice for solvent recovery, helping industries reduce raw material costs while achieving environmental compliance.

2. AURA PD 4‑CS (4 mm, coconut‑based): IAQ/HVAC odor control with excellent kinetics.

Technical Description: FM AURA PD 4 CS is a coconut shell–based 4 mm pelletized activated carbon specifically developed for indoor air quality (IAQ) management, HVAC filtration systems, and odor control applications. Manufactured from renewable coconut shells using advanced steam activation and precision pellet extrusion, this grade offers a high microporous surface area, superior adsorption kinetics, and low ash content, making it ideal for continuous clean air performance in sensitive environments.

The larger 4 mm pellet geometry ensures low pressure drop and uniform airflow in air-handling units and filter beds, while the inherent hardness of coconut-based carbon minimizes dusting and maintains long operational life.

Key Features & Advantages

Excellent Kinetics: High microporous surface area (>1100 m²/g BET) ensures rapid adsorption of VOCs and odorous gases.

IAQ & HVAC Focused: Designed for use in building air systems, hospitals, airports, malls, offices, and residential HVAC filters.

Odor Control: Effectively removes a wide spectrum of nuisance odors including ammonia, sulfur compounds, aldehydes, and organic vapors.

Low Pressure Drop: 4 mm pellets maintain airflow efficiency and reduce energy consumption in ventilation systems.

Superior Purity: Low ash and dust content protect downstream air-handling equipment.

Sustainable Source: 100% renewable coconut shell raw material with low environmental footprint.

Long Service Life: High hardness and low attrition rate extend filter replacement cycles.

Typical Applications

Indoor Air Quality (IAQ): Controls VOCs and odor in offices, schools, hospitals, hotels, and commercial complexes.

HVAC Systems: Integration into pleated panels, V-banks, and tray filters for air purification.

Odor Management: Neutralizes food processing, smoking areas, gym, and restroom odors.

Clean Environments: Pharmaceutical, biotech, semiconductor, and healthcare cleanrooms requiring low-contaminant air.

Airport & Transportation Hubs: Removes jet fuel fumes, exhaust gases, and airborne pollutants.

Technical Specifications (Typical)

Base Material: Coconut shell–based

Form: Pelletized (4 mm extrudates)

Iodine Number: >1000 mg/g

Surface Area (BET): 1100–1200 m²/g

CTC Adsorption: 55–65%

Hardness: >96%

Bulk Density: 0.46–0.50 g/cc

Moisture Content: ≤5%

Ash Content: <5%

Pressure Drop: Low (optimized for HVAC/IAQ systems)

Performance Differentiator

FM AURA PD 4 CS stands out among air-treatment carbons due to its coconut-based microporous structure, which provides faster kinetics and higher adsorption efficiency compared to coal-based alternatives. While coal-based carbons (like FM AURA PD 3 CB) excel in industrial VOC abatement, FM AURA PD 4 CS is optimized for human-occupied environments, ensuring superior odor control, air freshness, and health safety. Its renewable feedstock and lower ash content make it not only environmentally sustainable but also ideal for sensitive indoor environments where dust and impurities must be minimized.

3. AURA PD 4‑IMP: Impregnated for H₂S/SO₂/NH₃; includes catalytic pathways for irreversible binding.

Technical Description:

FM AURA PD 4 IMP is a high-performance 4 mm pelletized activated carbon, specially impregnated with catalytic chemicals such as potassium hydroxide (KOH), silver,and other proprietary metal salts. This advanced formulation provides irreversible chemical binding of acid gases and basic contaminants including hydrogen sulfide (H₂S), sulfur dioxide (SO₂), and ammonia (NH₃).

The base structure, derived from premium coconut shell activated carbon or bituminous coal, ensures high surface area, uniform pellet geometry, and excellent hardness, while the impregnation chemistry creates catalytic and reactive sites that deliver breakthrough adsorption performance beyond physical physisorption mechanisms.

Unlike standard carbons that rely only on physical adsorption, FM AURA PD 4 IMP provides chemisorption pathways, ensuring complete, irreversible contaminant capture — even at low concentrations or fluctuating loadings.

Key Features & Advantages

Multi-Contaminant Control: Effective removal of H₂S, SO₂, NH₃, formaldehyde, and acidic/basic gases.

Catalytic & Irreversible Binding: KOH and silver impregnation pathways ensure permanent neutralization of gases.

High Breakthrough Capacity: Outperforms non-impregnated carbons in both capacity and efficiency.

4 mm Pellet Design: Provides low pressure drop and uniform air/gas flow in packed beds and filters.

Extended Service Life: Slower breakthrough ensures longer bed life in demanding gas purification duties.

Corrosion Prevention: Protects HVAC ducts, electronics, and industrial equipment from corrosive gases.

Regulatory Compliance: Supports adherence to stringent IAQ, occupational safety, and emission standards.

Custom Formulations Available: Impregnation can be tailored for specific contaminants (e.g., halogens, mercury vapors).

Typical Applications

Corrosive Gas Control in Data Centers: Protects sensitive electronics from SO₂, H₂S, and NOx-induced corrosion.

Wastewater Treatment Facilities: Odor and corrosive gas removal in aeration tanks, sludge processing, and pumping stations.

Industrial Gas Purification: Removal of H₂S and NH₃ from chemical, fertilizer, pulp & paper, and refinery operations.

HVAC & Cleanroom Filtration: Ensures corrosion-free air in pharmaceutical, semiconductor, and biotech facilities.

Municipal & Institutional IAQ: Provides odor and gas control in hospitals, airports, tunnels, and transportation hubs.

Technical Specifications (Typical)

Base Material: Coconut shell–based activated carbon

Form: 4 mm pelletized extrudates

Impregnants: KOH, Silver (Ag), proprietary metal salts

Surface Area (BET): 900–1100 m²/g

Iodine Number: 800–950 mg/g (lower than virgin due to impregnation)

CTC Adsorption: 45–55%

Bulk Density: 0.50–0.55 g/cc

Hardness: >95%

Moisture Content: ≤10% (depending on impregnation loading)

H₂S Capacity: 8–12% wt (depending on formulation)

Pressure Drop: Low across bed depth (optimized for air-handling units)

Performance Differentiator

FM AURA PD 4 IMP offers a dual-action performance advantage:

Physical Adsorption — standard activated carbon mechanism for VOCs and odorous gases.

Chemical/Catalytic Binding — impregnants react irreversibly with H₂S, SO₂, NH₃, and other corrosive gases.

This makes FM AURA PD 4 IMP particularly suitable for environments where odor control and corrosion prevention are mission-critical, such as data centers, cleanrooms, and wastewater treatment plants. Competing standard carbons often suffer from early breakthrough in high H₂S or SO₂ conditions, whereas AURA PD 4 IMP maintains performance through active chemical reactions, ensuring maximum protection and operational continuity.

4. FM AERO PAC-CC (Pulverized Activated Carbon for Carbon Capture)

FM AERO PAC-CC is a special grade powdered activated carbon (PAC) developed specifically for post-combustion CO₂ capture and industrial flue gas decarbonization systems. Unlike conventional PACs used for mercury or dioxin removal, PAC-CC is tailored for high CO₂ adsorption capacity, surface functionality enhancement, and thermal regeneration compatibility.

It is derived from selected special grade organic precursors, with a high surface area (> 1500 m²/g) and a balanced micro- and mesoporous distribution optimized for physisorption of CO₂ at ambient and sub-ambient conditions. Optional amine-functionalized variants are available to enhance chemisorption selectivity and capacity under real-world flue gas streams containing O₂, SOx, NOx, and moisture.

Mechanism of CO₂ Capture Physisorption: High micropore volume (< 1 nm pore diameter) provides large surface sites for van der Waals interactions with CO₂ molecules.

Chemisorption (impregnated variants): Surface functionalization with amines or metal-organic complexes enables irreversible binding or enhanced selectivity for CO₂ even in the presence of competing gases.

Moisture tolerance: Proprietary pore architecture improves CO₂ uptake under humid flue gas conditions where traditional carbons lose capacity.

Cyclability: Designed for thermal or pressure swing adsorption (PSA/TSA) processes with minimal capacity degradation over multiple cycles.

Applications

Post-combustion CO₂ capture in coal-fired, natural gas, and biomass power plants

Industrial flue gas treatment in cement, steel, and petrochemical industries

Direct Air Capture (DAC) prototypes where surface area and cyclability are key

Pilot-scale carbon capture R&D — bench columns, adsorption isotherm studies

Hybrid capture systems combining activated carbon with membranes or cryogenic units

Performance Advantages vs Conventional

PAC Higher CO₂ loading capacity due to ultra-microporous structure and surface chemistry tuning

Faster kinetics compared to amine-based liquid solvents; no corrosive handling

Lower energy penalty during regeneration (especially in physisorption variants)

Modular integration with existing flue gas desulfurization (FGD) and baghouse systems

Sustainability: Manufactured from renewable organic sources, offering lower lifecycle CO₂ footprint

Design & Operating Guidance Injection systems: Compatible with pneumatic conveying and slurry injection units

Adsorber configurations: Fluidized beds, fixed beds, moving bed columns, or hybrid filters

Regeneration modes: Thermal swing (90–120 °C), pressure swing, or vacuum swing depending on capture design

Optimal operating window: 30–60 °C gas temperature, 1 bar pressure, 10–15% CO₂ concentration typical of flue gases

Cycle life: > 100 regeneration cycles with minimal loss in capacity (lab-tested)

Testing & Validation Protocols

CO₂ adsorption isotherms (0–1 bar, 25–60 °C) for capacity benchmarking

Breakthrough curves in fixed-bed columns with simulated flue gas compositions

Moisture impact studies to quantify adsorption under humid conditions

Cyclic stability tests (TSA/PSA) for ≥ 100 cycles

Comparative performance vs amine scrubbing and zeolite adsorbents