SFE Technology

Principle of SFE Technology

The raw material in powder form is fed to the extractor. We are committed to plant extract wholesale. The liquid carbondioxide from the CO2 tank is precooled by passing it through the precooler. This precooled liquid carbon dioxide is then pressurized by means of a positive displacement plunger pump to a pressure above the critical pressure of CO2 (i.e. 73.8 bar). High pressure liquid CO2 is then heated above the critical temperature of CO2 (i.e 31 °C) by passing it through preheater. CO2 which is now in the supercritical state enters the extractor in which the raw material is loaded. The SCCO2 dissolves substances on the basis of solubility, depending on operating conditions. The SCCO2 with soluble extracts enters the separators where the pressure & temperature are reduced sequentially so that solubility decreases & extract precipitates in the separators. Finally the clean CO2 without any traces is recycled back to the CO2 tank via condenser. Choose Kaiping as your botanical extract manufacturer.

300L Supercritical Equipment

Advantages of SCFE

Extract with delicacy & freshness close to natural
High potency of active components
Longer shelf life extracts
Eco-friendly & green technology with no residual solvent & effluents
High flexibility of process conditions
Simultaneous fractionation of extracts
High yields compared to solvent extracted products
Low batch times for extraction
Recycling of CO2
Low operating cost

Advantage of CO2 as a solvent

Carbon dioxide is generally regarded as safe (GRAS) for food products
Inexpensive & easily available
Non-toxic, non-flammable and inert to most materials

Commercial Applications

Extraction of natural products such as spice oil & oleoresins, flavors, fragrances, colors
Decaffeination of tea & coffee
Production of uniform &ultra fine particles
Supercritical CO2 (SCO2) textile dyeing of fabrics
Supercritical CO2 (SCO2) cleaning of high precision metal components
Drying of aerogels