Supercritical CO2 Extraction Closed Loop System

Make & Model: Core Separation, USA; Model No: CS1 × 10L

Description: Supercritical fluid extraction (SFE) is a process of separation or isolation of a desired compound from a mixture of chemical compounds, without altering the nature of the compound. SFE is a highly selective method using pressurized fluids as solvents. A supercritical fluid originates from a fluid being forced to pressure and temperature that is above its critical point causing the liquid and gas phases to become indistinguishable from each other. Supercritical fluids exhibit physicochemical properties of both liquid and gas states and have a density similar to liquid (0.3 – 0.8 g/cm3), a viscosity similar to gas (10-4 – 10-3 g/s cm), and a diffusion coefficient that is intermediate between liquid and gas (10-3 – 10-4 cm2/s). Because of these properties (low viscosity, relatively high diffusivity), the density of the supercritical fluid can be modified by adjusting the pressure and temperature, therefore affecting the desired solubility. Supercritical fluids have solvating properties that are similar to organic solvents, but have lower viscosity and higher diffusivity rates. Supercritical fluids have better transport properties than conventional organic solvents and can readily diffuse through materials, thereby improving the extraction efficiency and yield of the desired molecules.

Working Principle: Supercritical fluid extraction (SFE) is a technique for extracting compounds from solid or semisolid substances using a supercritical fluid, CO2, as the primary component of the mobile phase. Along with supercritical CO2, a co-solvent (usually methanol or ethanol) can serve as a modifier. Extraction conditions for supercritical CO2 are above the critical temperature of 31 °C and the critical pressure of 74 bar. The Supercritical fluid extraction (SFE) system can be operated maximum extraction pressure of 300 bar, extraction temperature at 60oC, and Co-solvent pump flow rate is 50 ml/min.

Specification: Primary Fluid: Carbon Dioxide (CO2)
Pressure: 300 bar
Temperature: 60oC
Extractor Volume: 10 liter
Separators: 3 × 1 liter
Co-solvent Pump: 50 ml/min


Raw Materials required: Spices, tea, agarwood, herbs, fruit and vegetables etc.