Fractionation
FractionationHome >> Why Supercritical CO2 >> Fractionation
Not only can we alter the extraction conditions to adjust the density of the CO2 to selectively extract specific components. But we can use this same tunability on the collection side.
If a system has multiple collectors with their own back pressure regulators we can progressively drop the pressure and alter the temperature on each separator to achieve a specific density.
This allows us to selectively precipitate components of interest in one collector, allowing the soluble components to progress to the next collector, where the process starts again.