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Cement & Glass

INDUSTRY · CEMENT & GLASS

Cement & Glass

The industries of fire: rotary kilns at 1450 °C, glass melting furnaces at 1500 °C, running continuously for years. Highly energy- and CO₂-intensive — cement alone accounts for about 7 to 8 % of global emissions — they are now at the front line of decarbonization.

The main families

Cement

Rotary kiln & grinding

Limestone calcination into clinker, grinding, alternative fuels (waste). Advanced kiln control, dust handling.

Glass

Melting furnace & float

Continuous melting, float process (flat glass), forming, annealing. Extreme thermal stability, optical quality.

Lime & aggregates

Calcination & materials

Lime kilns, quarries, crushing. Thermal processes and heavy handling, high energy intensity.

Key challenges

  • Decarbonization — the major challenge: cement emits CO₂ from both combustion AND the calcination chemistry. Alternative fuels, CO₂ capture (CCUS), low-carbon cements.
  • High-temperature processes — kilns at 1450-1500 °C continuously. Burner safety (SIS), thermal stability, in-line product quality.
  • Dust & ATEX — massive handling of powdery materials: dust-explosion risk, ATEX zones, dust collection.
  • Availability — a furnace runs for years without stopping; any unplanned shutdown is extremely costly. Predictive maintenance and asset management.

Key technologies

Standards & references

Add the safety standards for industrial thermoprocessing (EN 746) and furnaces (NFPA 86), and sector CO₂ frameworks.

Major players

Cement

Holcim, Heidelberg Materials, Cemex, CRH, Buzzi.

Glass

Saint-Gobain, NSG/Pilkington, AGC, Owens-Illinois, Corning.

Equipment

FLSmidth, thyssenkrupp Polysius, KHD, Glaston.

Automation

ABB, Siemens, Schneider, Rockwell.

Articles & resources