Core | Water
Subcritical and Supercritical Water Extractions
For the extraction of natural products using water as a renewable and natural resource to create high quality natural products
Hover over the orange circles to learn how our systems work and what each component on the system is used for!
06. Core | ABPR
Utilising a electopneumatic back pressure regulator with our APC control mechanism we are able to automatically regulate the pressure in our extractions, maintaining pressures +/- 1 bar of the setpoint.
05. Core | Pre-heaters
Dual pre-heater designed to heat the water up to 400 °C. These pre-heaters are located just after the pump to control the temperature of the water reaching the extractor. It ensures the water entering the extraction vessel is already at the extraction temperature ensuring a controlled extraction process.
02. Core | Condensers
The heat exchangers are located after the vessel and cool the aqueous stream to below 50 degC before entering the ABPR. This improves the life of the soft seals within the ABPR and helps delivers a aqueous stream at a safe temperature for collection.
02. Core | Extraction
Specially designed to within stand the extreme conditions generated by supercritical and subcritical water conditions this Inconel vessel is able to resist the corrosive properties of water at these extreme conditions.
01. Core | P50 Water Pump
Based on our robust dual piston design, the P50 pump delivers 50mL/min of water up to 500 bar generating a pulseless flow during the extraction process.
03. Core | Furnace Heater
Designed to heat the extraction vessel to temperatures exceeding 400 °C, this insulated furnace heater allows rapid heat up times while protecting the user from the extreme temperatures required for subcritical and supercritical water processing.
07. Core | Cold Trap
As the aqueous extract passes through the ABPR and is depressurised, it is collected in a cold trap. The cold trap acts to ensure the collected material is maintained below 40 °C for safe collection.
Subcritical Water Extraction
Subritical water exists below its critical point of 374 degC and 220 bar. These conditions act to increase the waters diffusivity making it an ideal eco-friendly solvent for the extraction of water soluble compounds found in natural products.
Features
SFX Control Software
When dealing with high pressure systems, pressure control is key. Core Separations developed APC (Advanced Pressure Control). This multilevel PID control achieves superior operational management while maintaining rapid pressure build up.
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High Pressure Pumps
Our high pressure pumps are engineered to operate with the highest level of performance and precision. Combined with particularly low maintenance and operating costs, these pumps are well suited for research and manufacturing environments.
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Extraction Vessels
Our EV Series vessels are high pressure, high performance extraction vessels are designed specifically for processing supercritical fluids. These vessels are designed to be easily opened while remaining safe whilst under pressure.
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Features
1. Speciality Metal : Inconel
When generating supercritical water, standard 300 series stainless steel tends to oxidise and corrode under these conditions. By replacing the material of contruction with a high nickel content steel such as Inconel, this corrosion can be avoided.
The Core | Water system uses an Inconel extraction vessel, heat exchangers and high-pressure pipework where ever superctitical water is generated. This limits potential corrosion which otherwise would pose safety risk and reduce the life of the system
2. High Temperature : upto 400 degC
To generate the high temperatures required for subcritical and supercritical water processing, the Core | Water system interagtes a high temperature clamp shell furance to the heat the extraction vessel.
The water being pumped into the extraction vessel is also pre-heated using a tube in shell heat exchangers to ensure the processing conditions are reached quickly.
3. Safety : Pressure and Temperature
Along with the necessary pressure safety devices on the pump and extraction vessel which protect the system from over pressurising, the high temperature process lines and the extraction vessel are shielded to prevent the user from hazardous burns.
The extraction vessel is contained within a well insultated furnance with both the inlet and outlet pipework either shielded using u-shaped covers or covered high temperature lagging.
4. High Pressure : 500 bar
The Core | Water system has a design rating upto 550 bar and an operating pressure of 500 bar. This wide range of pressures allow for an array of processing conditions making this system ideal for a number of applications, including subcritical water extraction or supercritical water oxidation.
Certification
