10/10/2026
Planning a natural-gas-fired lime kiln? What should be checked first?
Natural gas is one fuel option. The kiln type and operating window still need to match limestone size and consistency, target output, required lime reactivity, and site gas-supply conditions.
In a PFR twin-shaft kiln, the shafts alternate between calcining and regenerative operation, using hot process gas to preheat limestone in the other shaft. A project review should also check gas composition and pressure, burner arrangement, combustion-air control, temperature monitoring and safety interlocks, alongside feeding, conveying, dedusting and finished-lime handling.
The sector is also exploring lower-carbon fuels, electrification and CO₂ capture. Natural gas may be a practical project fuel, but it does not remove the process CO₂ released during limestone calcination.
AGICO CEMENT supports technical discussions on lime kilns and integrated plant scope based on raw material, product requirements, capacity, site conditions and energy supply.
What quicklime capacity are you planning in tonnes per day, and what limestone size range will you feed?
For a technical discussion: [email protected]