The Capture and Sequestration of Carbon Dioxide

bullet1 The Technology for Capturing Carbon Dioxide
bullet2 CO2 Capture Methods

bullet3 Cryogenic fractionation

  • Which involves the compression of the gas stream, and cooling it to a temperature low enough to allow separation by distillation. The resulting liquid CO2 may then be removed for disposal
  • Used for high CO2 concentrations (typically >90%).
  • High energy required fir refrigeration.
  • Some components such as water have to be removed before the gas stream is cooled, to avoid blockages
  • Applicable for high-pressure gases, such as in pre-combustion capture processes or oxygen-fired combustion