SUPER FINE ASH LIBERATION AT SUB 50 MICRONS
Vortex aeroacoustic technology for super fine ash liberation of drift theory Indian coal.
ARIA’s Vortex Aeroacoustics Technology uses controlled high-velocity vortex airflow and acoustic energy to induce particle-to-particle collisions, selectively liberating ultra-fine ash from coal without conventional grinding. This non-contact process preserves coal structure while freeing mineral impurities.
Ash liberation is especially critical for Indian coal, which typically contains finely interlocked mineral matter. By releasing these ultra-fine ash particles, the Vortex process significantly improves beneficiation efficiency, enabling higher-quality coal for energy and downstream chemical applications.
SUPER FINE FLUIDIZED BED BENEFICIATION
Density-based dry separation using air fluidisation and vibration to stratify superfine coal into distinct mineral layers without water.
In the ARIA Superfine Dry Fluidised Bed Beneficiation process, superfine liberated coal powder enters a vibrating rectangular tank where compressed air from the bottom fluidises the material. The combined effect of air fluidisation and vibration causes density stratification, forming layers of carbon, alumina, silica, and heavy mineral impurities.
As the material moves along an inclined discharge ramp, adjustable skimming plates selectively collect each layer into separate product streams for downstream processing.
PLASMA GASIFICATION OF SUPER FINE COAL
Sealed plasma reactor operating with negative pressure, ensuring the highest yield & purity of SynGas
Superfine beneficiated coal (<7% ash) and steam are injected into a sealed negative-pressure reactor where plasma temperatures exceeding 2000 °C convert the feed to syngas in less than one second.
The extreme thermal environment rapidly cracks steam molecules and gasifies carbon, while mineral matter melts and solidifies as vitrified inert slag collected at the bottom.
WASTE TO VALUE FROM COAL REJECTS
Beneficiation rejects with alumina, silica and iron are converted to usable minerals.
The ARIA dry beneficiation process separates valuable mineral fractions from superfine coal through density-based stratification. This enables the recovery of industrial minerals such as silica, alumina, and iron compounds with typical purities of 85–90%.
These recovered minerals can be supplied directly to raw material buyers or further upgraded through heat treatment and refining to achieve higher purity for use in cement, metallurgy, ceramics, glass, and chemical industries.
UNLOCKING MAXIMUM VALUE FROM EVERY TON OF INDIAN COAL.
ARIA is the world’s first patented dry coal valorisation platform integrating vortex liberation, dry beneficiation, mineral recovery, and plasma gasification in a single water-free process.
THE ARIA EDGE
RE-WRITING INDIA’S COAL STORY
Leveraging our abundant domestic coal reserves to sustainably reduce energy imports.
- 100% dry coal processing – no water consumption in beneficiation
- No tailing ponds or slurry waste
- Zero risk of groundwater contamination
- Ultra-low emissions through clean gasification process
- Near-zero particulate release due to sealed processing
- Vitrified inert from plasma gasification – environmentally stable and safe
- Reduced land footprint compared to conventional coal washing plants
- Reduced land footprint compared to conventional coal washing plants
