Now at home and abroad are committed to the development of a new type of carbon dioxide utilization technology ─ ─ Supercritical CO₂ extraction technology.

Carbon dioxide in temperature above the critical temperature (Tc) 31 ℃, pressure is higher than critical pressure (Pc)3 Mpa, under the condition of nature change, its close to liquid density, viscosity to gas, liquid diffusion coefficient for 100 times, and phenomenal ability to dissolve, can dissolve various material with it, and then extract the effective components.

traditional methods of extracting effective components, such as water steam distillation, decompression distillation and solvent extraction, are complex, low purity and easy to remain harmful substances. Carbon dioxide Supercritical CO₂ extraction is cheap, non-toxic, safe and efficient, and can produce very high added value products. Supercritical CO2 extraction can be used to extract the active ingredients from a number of plants that would not have been available chemically in the past. In addition to chemical and other industries,  Supercritical CO₂ extraction but also used in tobacco, spices, food and other aspects. For example,Supercritical CO₂ extraction can be used to remove the caffeine in coffee and tea, and extract the valuable components of allicin, germ oil, sea buckthorn oil, vegetable oil, and opium, atropine, ginseng, ginkgo leaves and yew.