Carbon Capture

Take carbon dioxide straight out of the air on sunlight. The Carbon Capture Cell draws air through on direct current from the array and holds the carbon dioxide, and the Calcining Kiln releases it as a pure stream, ready to sell or turn into fuel.

864Tonnes of carbon dioxide from the air a year
SunlightRuns on the array, unattended
Carbon Capture Cell, front elevation

How It Works

  1. 1
    Fans Draw In the Air
    Direct current fans, wired straight to the solar array, draw air through the Cell from sunrise to sunset.
  2. 2
    The Cell Holds the Carbon
    The Cell holds the carbon dioxide and lets the rest of the air go.
  3. 3
    Sunlight Releases It
    The Calcining Kiln drives the carbon dioxide off on solar power as a pure stream.
  4. 4
    The Cell Goes Round Again
    The Cell comes back ready for the next pass, so it captures carbon dioxide again and again.

Specification

Capture864 tonnes of carbon dioxide a year, with the Calcining Kiln
AirDrawn through the Cell by direct current fans
ReleaseCalcining Kiln, as a pure stream
PowerDirect current from the array, with zero inverters and no grid connection
DutySunlight hours, unattended
Production cost$45.11 per tonne
AcceptsAmbient air

Two Cells and the Sun

Capture

Carbon Capture Cell

Holds the fans. Air passes through the Cell, and the carbon dioxide stays behind.

Release

Calcining Kiln, 1,000 °C

Drives the captured carbon dioxide off on solar electricity, collects it as a pure stream and sends the Cell round again.

Power

Sunlight

Direct current from the array runs the fans and the kiln from sunrise to sunset, with no fuel to buy and no grid bill.

Sell It or Make Fuel

Sell the carbon dioxide as an industrial gas at $370 a tonne, against a conventional price of $400 to $600. Or add hydrogen from the Water Electrolyser and the Catalytic Fuel Reactor turns it into pipeline methane and methanol.

What It Uses

  • Air
    Ambient air, moved by fans that run on the array
  • Sunlight
    Direct current from the array, from sunrise to sunset

Front elevation

Carbon Capture Cell, front elevation, 12.2 metres long and 2.9 metres high