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The Capture and Sequestration of Carbon Dioxide | | |
Cryogenic fractionation
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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
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Used for high CO2 concentrations (typically >90%).
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High energy required fir refrigeration.
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Some components such as water have to be removed before the gas stream is cooled, to avoid blockages
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Applicable for high-pressure gases, such as in pre-combustion capture processes or oxygen-fired combustion
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