TECHNICAL SPECIFICATIONS – 2x20L System
CO2 Pumping module:
• Air-driven, dual-piston CO2 pump
• Delivers approximately 3Kg of CO2/min.
• 690 Bar (10,000 psi) maximum pressure
• Cooled by a chiller
Extraction Module:
• Two (2) stainless steel, 20 liter vessels
• 690 Bar (10,000 psi) maximum pressure
• 200° C maximum temperature
• Heated with special flexible heater
• Four (4) stainless dual-fritted/top and bottom, steel interior basket for quick loading/unloading.
• Heated micro-metering valve controls outlet flow
• Extraction module is plumbed so that the CO2 can flow:
o Can flow in and out of either vessel independently
o Can flow from each vessel simultaneously (parallel)
o Can flow from extractor vessel #1 to extractor vessel #2 and then to separator #1 (serial)
Fractionation Module – 3 stage:
• One (1) stainless steel, with extra heating, 5 liter cyclonic separator vessel
o Rated for 375 Bar (5,437 psi) at 100° C
o Screw open top and pressure relief safety device installed
o A ball valve is installed between each of the separators
• One (1) stainless steel, heated, 5 liter cyclonic separator vessel
o Rated for 250 Bar (3,625 psi) at 100° C
o Screw open top and pressure relief safety device installed
• One (1) stainless steel, heated, 4 liter cyclonic separator vessel
o Rated for 124 Bar (1,798 psi) at 100° C
o Level Indicator and pressure relief safety device installed
o A heated ball valve and 1 liter collector for collection of extractor from the separator even while the system continues to operate.
CO2 Recirculation System:
• One (1) CO2 condenser
• One (1) variable area flow meter
• One (1) 90 liter CO2 storage vessels (or equivalent)
• Rated for 124 Bar (1,798 psi) at 100° C
• Pressure relief safety valves installed Control, Monitoring:
• Pressure control
• Air pressure regulated to the pump
• Monitored by an analog air pressure gauge
• Digital CO2 pressure gauge
• Temperature control
• Heat exchanger provides heating for the supercritical fluid before entering the vessel
• Vessel temperature is maintained with a PID controller
• Flow Control
• Auto-flow metering valve on the vessel outlet
• Control / Monitoring
• Touch screen computer with LabVIEW-based ASI Vision interface
• PID temperature controllers
• Pressure Indicator
• Flow Indicator
• All controllers have RS-485 outputs for data logging
Co-Solvent Pumping module:
• Air-driven, single-piston CO2 pump
• Delivers approximately 400mL of solvent/min. at 690 Bar (10,000 psi) maximum pressure
General System and Facility Requirements:
2x20L System
• Space Requirements 2x20L
• Approximate system dimensions: 204”L x 36”D x 86”H
• Approximate system RCB dimensions: 34”W x 40”D x 60”H
• Electrical Requirements – 2x20L
• Three (3) 240VAC, 50 Amp, 1-Phase circuits
• One (1) 240VAC, 50 Amp, 3-Phase circuit
• Two (2) 120VAC, 20 Amp, 1-Phase circuit
• Plus electrical service for air compressor below
• Compressed air requirements – 2x20L
• 100 psi-125 psi 72 ACFM of clean, dry air.
• Two-stage 25HP compressor (customer-supplied).
• Need electrical service for compressor (customer-supplied)
• 100 psi-125 psi 35 ACFM of clean, dry air.
• Two-stage 10HP compressor (customer-supplied).
• Need electrical service for compressor (customer-supplied).
Venting requirements
• Carbon Dioxide
• It is the customer’s responsibility to properly and safely vent the following components, using suitably pressure-rated devices: extraction vessel safety heads which contain the rupture discs, the CO2 vent valves, the separator vessel pressure relief valves, CO2 storage vessel pressure relief valves, and customer-supplied collection vessels for extracted product.
• Warm Air from the Chiller
• It is the customer’s responsibility to properly and safely vent the warm air generated by the chiller away from the equipment to maintain the SFE equipment environmental requirements below.
Environmental requirements
Temperature: 20-20˚C (59-69˚F) Humidity: 0-50%, non-condensing
Documentation:
At time of delivery, an operator’s manual will be included with full details covering:
• Instructions as to the principles of SFE
• Scope, purpose and operating parameters of the system
• Set up (utilities, assembly) installation and startup
• Instrument set up and instruction
• Operation, care and maintenance
