Supercritical Fluid Technology Definition:
Usually only have a material gas solid liquid three-phase the so-called "supercritical fluid" is the means: When the fluid temperature and pressure to achieve a "specific points" gas liquid two-phase of the same density tended to And merged into one uniform of the state such a "specific points" of the fluid is called the critical point. When one of the fluid temperature and pressure are beyond the critical point to achieve the super-critical state at this time of the fluid that is defined as overweight supercritical fluid '.
Supercritical Fluid Technology Characteristics:
Once the material into the supercritical fluid state showed that between liquid and gaseous between the stability and special phase can not be entirely classified as a liquid or gas of the areas but also have the characteristics of the two substances. On the one hand that is with low surface tension Di Nianduo and the proliferation of high gas properties on the other hand but also has high dissolved and high density of the liquid therefore particularly in control of the solvents like characteristics making it a Organic and water-based solvents of the best environmental alternatives.
Cool the heating system
Automation control system
1. Automatic monitoring system
2. Automatic control program
3. Four high-pressure cut-off system
Why we choose CO2 as Supercritical fluid (SCF) ?
1. CO2 is an inert gas that does not chemically react during extraction and is not harmful to the environment
2. Carbon dioxide is not flammable not easy to explode;
3. CO2 gas is easy to get cheap can be recycled in production .
Why carbon dioxide application:
Basically a variety of gases including water can be as supercritical fluid medium but on the CO2 is the most commonly used. CO2 is mainly due to close at room temperature and normal atmospheric pressure conditions can easily reach supercritical control point therefore become carbon dioxide supercritical fluid technology use the best medium.
※ temporary sector to trade in points (critical pressure Pc = 73.8bar critical temperature Tc = 31.1 ℃)
※ trading on the acquisition to facilitate cost safe!
※ non-toxic colorless odorless is not Ranxing does not have a photochemical reaction
※ on the environment-friendly (not damage the ozone layer does not produce smoke)
※ power can be dissolved with the temperature and pressure conditions and changes in control
※ trading on the use of recycling.
Supercritical carbon dioxide application advantages:
※ 3 S comply with environmental standards
Reduce-energy conservation and reduce pollution; Reuse-repeated repeated use; Recycle-sustainable resources recycling.
Carbon dioxide is in fact industrial by-products such as the fermentation industry the petrochemical industry in the process will have a high concentration of carbon dioxide the collection of purified liquefied compressed can be stored after use. To facilitate the cost can be substantial acquisition will not be limited petrochemical energy crisis.
※ environmental systems and material existence the environment without interference
Carbon dioxide in the natural world everywhere beverages soft drinks and human metabolism is natural there are do not damage the environment heterogeneity of intrusive interference. Will not adversely affect the environment environmental waste.
※ sterile and can inhibit bacterial growth
※ non-toxic safe
Is not Ranxing no explosive non-corrosive chemical stability non-toxic; does not need to meet fire explosion or anti-corrosion of special protective equipment.
※ low temperature room temperature operation the broad scope of application
31.1 ℃ temperature temporary sector so the selective application of the substantial increase in solute and can not avoid the objects of high temperature heat damage.
※ 95% more CO2 recovery
Very easily and can be completely separate and solute the solute and solvent that is easy to accept without question residual reserves.
※ breakthrough low temperature extraction technology
Can be conducted at low temperature extraction will not damage the heat sensitive material.
※ replace the traditional high pollution wet process
Optoelectronic semiconductor industry including the process of photoresist coating developing and etching photoresist stripping cleaning drying metal deposition etc. can be found in liquid or supercritical CO2 in the media complete as a revolutionary production of green technology . The future supercritical CO2 technology will be great potential take into account environmental cost and technical advantages in the semiconductor industry technology to become widespread. However supercritical fluid in the semiconductor industry is not limited to this application such as supercritical water oxidation (SCWO) technology in toxic emissions / waste water treatment liquid CO2 dry cleaning dust-free clothing etc. there are unlimited potential and applications to be developed.
Supercritical Extraction Precedure:
Supercritical Fluid Extraction Development Trend
1. Supercritical fluid extraction gradually replace the traditional extraction methods;
2. The next five years the use of global technology supercritical fluid extraction technology will increase by 30%
Supercritical Fluid Extraction Advantage:
1. Environmental protection
2. Extraction product improve the health
3. Improve the food safety
Supercritical Fluid Extraction(SFE) Working Principle:
Supercritical CO2 extraction means CO2 goes to a supercritical phase after pressurization and heating temperature above critical points. CO2 at supercritical phase have solubility powers similar to liquid organic solvents but with higher diffusivities higher transfer efficiency lower viscosities and lower surface tension. With advantages of non-toxic colorless odorless incombustibility non-photochemical reaction eco-friendly and easy recycling CO2 is now considered as the best solvent for Supercritical Fluid Extraction technology.
Supercritical fluid extraction (SFE) is a new chemical industry that uses supercritical fluids to separate recover and purify matter at critical temperatures and critical pressures.
The technology is environmentally friendly known as "green technology"
◆Green Environmental Protection Technology:
Supercritical CO2 extraction has no disadvantages of traditional extraction method. Ex, the biological activity is easy to be damaged in high-temperature distillation extraction, the organic solvent left in solvent extraction will influence the purity of extract, the aroma of esters is easy to vanish away in expression extraction.
Supercritical CO2 extraction can extract high purity natural compounds easily. There is no solvent residues and little thermal degradation of sensitive compounds will occur. Separation and purification of totally natural and healthy compounds can also be achieved. Supercritical CO2 extraction is the green and epoch-making technology today and tomorrow.
◆Supercritical Fluid Technology Advantages:
●Effectively bioactive ingredients extraction with lower viscosity and higher penetration to the matrix
●Low temperatures extraction condition which result in less degradation of thermally-labile components in the extracts.
●Green Solvent with CO2 recovery rate over 95%
●No solvent residue in the extract. This means lower operating costs for clean-up and the reduction in post-processing steps.
● Non-toxic, high safety degree, non-flammable, non-explosive.
●Selective extraction by manipulating the operating conditions (temperature, pressure…).
Supercritical Fluid Extraction(SFE) Characteristic:
1. Low viscosity and high air permeability
2. Excellent solubility with similar liquid density
3. The solubility of a substance depends on the density of the solvent. By changing the pressure and the temperature we can achieve a change in the solubility parameter
Application Of Supercritical Fluid Extraction:
Food ingredients(Ginger, pepper, parsley, pepper, garlic, chrysanthemum), medicine(Angelica, medlar, Artemisia, sage, chamomile, cinnamon, turmeric), health care(Tomatoes, sea buckthorn, pomegranate, walnuts), Pesticide(Neem,
pyrethrum), Cosmetic(Aloe Vera, Rose, Lavender, Almond, Peony, Peppermint, Sage, Honeysuckl)
Ginger -> supercritical extraction -> Ginger essential oil
1. Ginger oil can be used as a food additive.
2. Essential oils which containing gingerol can be used in medicine.
3. After dilution, essential oils can be used to produce bioactive additives.
Chilli red pigment -> supercritical extraction -> Pepper fine
Black pepper -> supercritical extraction -> Black pepper oil concentratic
Anise -> supercritical extraction -> Star anise oil concentratic
Olives -> supercritical extraction -> Olive oil
Nutmeg -> supercritical extraction -> Nutmeg essential oil
Cinnamon -> supercritical extraction -> Cinnamon oil
Cumin -> supercritical extraction -> Cumin oil
Celery -> supercritical extraction -> Celery oil
Chrysanthemum -> supercritical extraction -> Chrysanthemum oil
Garlic -> supercritical extraction -> Garlic oil
Pepper -> supercritical extraction -> Pepper oil
Artemisia -> supercritical extraction -> Artemisinin -> Anti-malarial drugs, Antibacterial,Antiparasitic,Antipyretics,Immune enzymes
Angelica concentratic -> Angelica oil concentratic
Wolfberry -> supercritical extraction -> Wolfberry oil
Ganoderma lucidum -> supercritical extraction -> Ganoderma lucidum oil concentratic
Cinnamon -> supercritical extraction -> Cinnamon oil
Turmeric -> supercritical extraction -> Curcumin
Yolk -> supercritical extraction -> Lecithin
Tea -> supercritical extraction -> Caffeine
Tomato peel -> Supercritical extraction -> Lycopene
Lycopene is a natural dye, anticancer drug, antioxidant, immune enhancer, to extend life expectancy.
Seabuckthorn fruit -> supercritical extraction -> Sea buckthorn oil
Walnut -> supercritical extraction -> Walnut oil
Rice -> supercritical extraction -> Rice oil
Wheat germ -> supercritical extraction -> Wheat germ oil
Honeysuckle -> Supercritical extraction -> Honeysuckle oil
1. Honeysuckle essential oil can nourish the skin, remove pigment spots, balance sebum, skin care is an integral part;
2. Chlorogenic acid contained in essential oils of honeysuckle can stimulate metabolism, is an immune stimulator, antibacterial, anti-inflammatory agent.
Rose -> supercritical extraction -> Rose oil
Lavender -> supercritical extraction -> Lavender oil
Aloe vera -> supercritical extraction -> Aloe vera oil
Azadirachtin -> supercritical extraction -> Azadirachtin oil
Azadirachtin is currently recognized as a broad-spectrum, high efficiency, low toxicity, easily degradable, non-residue and non-resistant pesticides, no pollution to humans and animals and the surrounding environment.
Pyrethrum -> supercritical extraction -> Pyrethroids
Fish vine -> supercritical extraction -> Rotenone