In this Helix configuration with SCCO and Subcritical HO, there are two extractor vessels.
One is dedicated to supercritical CO and the other is used for subcritical water. Although requiring attention, it is possible to operate both techniques simultaneously.
The supercritical CO part of the configuration is the same as the Helix: CO Extraction System.
In order to do subcritical water extractions, the Helix employs:
- a separate liquid pump to pump the water into the extractor vessel
- a separate collection/condensation system to safely condense the superheated steam and collect the desired extracts
- Applied Separations, Inc. standard vessels configured to subcritical water achieve 240°C. Optionally, vessels can be configured to achieve 300°C.