Calcining Kiln, 1,000 °C

Make lime, cement clinker and brick on sunlight. The kiln calcines and fires at 800 to 1,050 degrees Celsius, and holds temperature overnight.

1,677Tonnes of quicklime a year
SunlightRuns on the array, unattended
Calcining Kiln Cell, front elevation

The Chemistry of Construction

  • Cement clinker
    Ground with gypsum into blended cement, 1,709 tonnes a year from the Cells that make it
  • Quicklime
    1,677 tonnes a year, produced for $37.74 per tonne against a conventional price of $60 to $75
  • Calcined clay
    Supplementary cementitious material, fired at 800 degrees Celsius
  • Fired brick
    2,289 tonnes a year, with the Crushing and Milling Plant and the Solar Drying Kiln
  • Pure carbon dioxide
    A clean process stream, captured as a product, and the release step of the Carbon Capture Cell
  • Activated carbon
    47 tonnes a year of water filter grade, steam activated from the char of the Pyrolysis Reactor in resource recovery

Specification

Rated input850 kilowatts
MaterialsOff the shelf components
Temperature800 to 1,050 degrees Celsius
DutySunlight hours. Holds temperature overnight
Energy capture100% of array output
Intensity0.65 to 1.10 megawatt-hours per tonne
AcceptsLimestone, clay, shale, gypsum, metal concentrate, calcium oxide

Front elevation

Calcining Kiln Cell, front elevation, 12.2 metres long and 2.9 metres high