Activated Granules
High-performance clay adsorbents that remove polar impurities,
extend fuel stability, and protect aviation engines from thermal degradation.
Product Range
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Ensuring Aviation Fuel Quality from Refinery to Flight Deck
Aviation fuel undergoes rigorous purification to meet ASTM D1655 and DEF STAN 91-91 standards. Even trace levels of polar impurities—such as surface-active compounds, organic acids, and surfactants—can cause thermal instability, filter blockages, and engine deposits at high altitudes. Activated clay granules act as the final purification step, adsorbing these contaminants before fuel reaches aircraft tanks.
With global jet fuel demand projected to grow at 4-5% annually through 2030, refineries and fuel terminals require reliable, cost-effective adsorbents that maintain fuel integrity across storage, handling, and flight operations.
Technical Challenges in Fuel Purification
Aviation fuel purification systems face several operational challenges:
- Thermal Instability - Polar compounds break down at high temperatures, forming gums and deposits that clog fuel filters and injectors
- Surfactant Contamination – Surface-active agents from refining or pipeline transport cause emulsions and water separation issues
- Colour Reversion – Residual trace metals and aromatic compounds darken fuel during storage, signaling quality degradation
- Filter Differential Pressure – Fine particulates and degraded fuel components increase pressure drop across filtration systems
- Short Bed Life – Inadequate adsorption capacity leads to frequent media changes and operational downtime
Product Range
ARAC Activated Granules – Engineered for Aviation Fuel Purity
ARAC manufactures three grades of activated clay granules optimized for kerosene and jet fuel purification.
Sourced from select mineral deposits in Kutch, Gujarat, and processed through controlled activation, these granules deliver high adsorption capacity, mechanical durability, and extended service life.
Product Variants
ARAC Jet Supreme (Standard Grade)
- Particle Size: 0.8 – 1.6 mm
- Applications: General kerosene purification, aviation turbine fuel (Jet A, Jet A-1)
- Key Features: Balanced pore structure for polar compound removal, good flow characteristics, economical for high-volume applications
ARAC Jet Supreme Fine
- Particle Size:0.6 – 1.0 mm
- Applications: High-sensitivity applications requiring faster adsorption kinetics
- Key Features: Increased surface area exposure, rapid impurity capture, suitable for compact filtration vessels
ARAC Jet Supreme Coarse
- Particle Size:1.0 – 2.0 mm
- Applications: Large-scale refinery and terminal purification systems
- Key Features: Lower pressure drop across beds, extended filter run times, reduced attrition and fines generation
Technical Specifications
| Parameter | ARAC Jet Supreme | ARAC Jet Supreme Fine | ARAC Jet Supreme Coarse |
|---|---|---|---|
| Particle Size | 0.8 – 1.6 mm | 0.6 – 1.0 mm | 1.0 – 2.0 mm |
| Bulk Density | 650 – 750 kg/m³ | 680 – 780 kg/m³ | 620 – 720 kg/m³ |
| Surface Area | 180 – 220 m²/g | 200 – 240 m²/g | 160 – 200 m²/g |
| Moisture Content | < 8% | < 8% | < 8% |
| pH (10% slurry) | 4.5 – 6.5 | 4.5 – 6.5 | 4.5 – 6.5 |
| Attrition Loss | < 5% | < 5% | < 5% |
Performance Benefits
Extended Bed Life
High adsorption capacity reduces frequency of media replacement, lowering operational costs and downtime.
Improved Thermal Stability
Effective removal of polar impurities prevents gum formation and deposit build-up in fuel systems and combustion chambers.
Colour Stability
Adsorbs trace metals and aromatic compounds that cause fuel darkening during storage and handling.
Low Pressure Drop
Uniform granule sizing ensures consistent flow characteristics and minimizes differential pressure across purification beds.
Mechanical Durability
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Don't hesitate to reach out to us for technical questions, sample requests, inquiries or regulatory information. Our team is ready to help and meet your requests.
