Apeks Supercritical The Duplex™ Operation Manual
25
Revision Date 8/28/2018
3.2.1.15. Enter separator switch-over time.
3.2.1.15.1. If no switch-over is desired, make switch-over time longer than total run time.
3.2.1.15.2. Phases are related to which separator is online and separate from the extractors
entirely.
3.2.1.16. Save settings and continue back to the main screen
3.2.2. The Main Screen
3.2.2.1. Press “Start Cycle” to begin the run.
3.2.2.2. The if the “Cycle Parameters” button on the main screen is not green then the cycle
parameters are not fully established and needs attention. Return to the cycle parameters
screen to fully set all the parameters.
3.2.2.3. At this point the system should start.
3.2.3. System Response on Startup – At this point the system will operate automatically as follows
3.2.3.1. The system will charge the extractor and separators with an initial burst of pressure and
turn on the diaphragm pump to allow it to come up to speed before presenting pressure.
3.2.3.2. After a small time interval, the system will begin to supply CO
2
to the compressor to be
compressed and charge the extractors.
3.2.3.3. This charging process will continue until the system has reached its target pressure and
the system will go into run mode
3.2.3.4. Temperatures and pressure are controlled by the system and will continue to be adjusted
until the system reaches steady state. If any adjustments need to be made during the
cycle to maintain steady state (i.e. additional CO
2
or temperature changes) the system
will automatically adjust.
3.3. Recommended Operating Parameters
3.3.1. Subcritical Parameters
Target Pressure: 1,200 psi
Extractor Target Temp: 70-75 F
Separator Target Temp: 25-30 F
Orifice Size: 50
Extraction Time: 40-60 minutes per pound
3.3.2. Supercritical Parameter
Target Pressure: 1,800 psi
Extractor Target Temp: 105-110 F
Separator Target Temp: 25-30 F
Orifice Size: 35
Extraction Time: 20-40 minutes per pound
NOTE: Extraction times can vary by strain, be sure to test material before and after extraction, especially when
running a new strain. Increase or decrease extraction time as needed.
3.4. During the Cycle
3.4.1. Service Separator/Cleaning out Separator that is offline
3.4.1.1. If working on a separator bank that is online use the “Service Separator” button on the
manual screen. If working on offline vessel, verify valves to that separator are shut.
3.4.1.2. Verify the vessel has been pumped down to 100psi and verify the air actuated ball valves
are not open by looking at the color of the valves on the control screen, green is open
and white is closed.
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