Helix: Basic CO2 Extraction System with Three CO2 Separators
The Helix CO2 Extraction System with 3 CO2 separators gives you the opportunity to extract samples up to one liter in volume at up to 10,000 psi and up to 240°C and discharge the extract to 3 different separators; cascading in decreasing pressure from separator #1 to separator #2, to separator #3 and then to ambient collection.
- temperatures to 240°C – no technical limitations because of not having sufficient heat
- pressure up to 10,000 psi (690 BAR) – get maximum density and solvating power, don’t leave extracts in the pressure vessel
- holds 24mL to 1L vessels standard;– start with a small sample and scale up—no problem
- pump flow rates up to 400mL/min - extract quickly and efficiently*
- fully-adjustable, non-clogging, micrometring valves control flow rate
- collection into standard glassware, chilled collection to capture volatile compounds, on SPE for further chromatographic separations
- in-vessel chromatographic capabilities
- modifier addition capability – extract polar compounds, too
- multiple flow path – efficiency, efficiency, efficiency
- extract liquid samples as liquids
- stirrer capability
- view cell - capability to look inside of vessel – keep a video record
- configurations for multiple/varied applications, check applications sections
*flow rate based on incompressible liquid
Many CO2 soluble polymers may be fractionated by molecular weight including silicones, polycarbosilanes, and perfluoropolyethers. For example, polydimethylsiloxane with an average molecular weight of approximately 90,000 can be dissolved in supercritical CO2 at 80°C and 600 bar and fractionated as the pressure is reduced sequentially from 450 bar to atmosphere.
- Separator# 1 contains an average molecular weight of 150,000,
- Separator #2 contains an average molecular weight of 75,000
- Separator#3 contains an average molecular weight of 46,000
- The ambient collector contains an average molecular weight of 1500.