Process Heat Recovery
Capturing lost energy to power the next generation of clean industry
The cleanest energy is the energy we stop wasting
PROBLEM: High-Grade Heat Lost in Industrial Processes
Every metallurgical process generates thermal energy — and most of it escapes unused.
Across kilns, dryers, and roasters, this means millions in fuel loss and significant CO₂ emissions.
TENSION: The Cost and Carbon Burden of Waste Heat
Process heating accounts for over 50% of the total manufacturing energy use.
Even a 10% gain in recovery efficiency can save billions and cut megatonnes of emissions.
Applications (global throughput): Spodumene 1.3 Mtpy; Phosphate 223 Mtpy; Hydrated alumina 133 Mtpy; Nickel laterite 1.5 Mtpy*; Copper conc. drying 21 Mtpy Cu; Soda ash 70 Mtpy; Lithium carbonate drying ~687 ktpy LCE.
Waste valorization: Fly ash ~780 Mtpy; Bauxite residues ~155 Mtpy; E-waste ~57 Mtpy; Spent catalysts ~1.2 Mtpy.
SOLUTION: Closed-Loop Indirect Heat Recovery
GEOMEGA’s indirect heat recovery systems capture high-temperature energy in a sealed, closed-loop unit integrated with existing equipment.
The system recycles up to 80% of total heat input, lowering both operational costs and carbon intensity.
Key Advantages
• 80%+ heat recovery
• Works across wide temperature ranges
• Fits direct and indirect kilns
• 25% CO₂ intensity reduction potential
heat recovery