Guide to CO2 extraction process of cinnamon oil
Table of Contents
CO2 Extraction Process of Cinnamon Oil
- Extraction temperature: 40 ℃;
- Extraction pressure: 350 bar;
- Extraction time: 3h;
- Separation temperature: 55 ℃;
- Separation pressure: 90 bar;
- CO2 flow rate 30 kg / h;
- Materail bulk density: (0.44 ± 0.02) g / ml.
HOW TO CHOOSE THE RIGHT CO2 EXTRACTOR?
CO2 Extraction Machine Buyer’s Guide
As you can imagine, not all supercritical CO2 extractors are made the same.
For more than 30 years, we have customized many CO2 extraction machines (Tabletop CO2 Extractor) for many companies and university laboratories (1 lb CO2 extractor). Because each customer’s CO2 extraction process requirements are different, there are almost no identical machines.
How many liters of CO2 extraction vessels are needed？
The first factor that determines the size of the CO2 extraction vessel is the daily working hours of the plant, which determines the daily extraction batch. The vessel size of the CO2 extractor depends on the biomass to be processed per day.
How many separators are needed?
How can I custom my separator when I need more terpenes in my How can I custom my separators when need more terpenes in CBD oil extraction process? Waxes separation and Light oil separation in 1st separator; Light oil separation in 2nd separator; To trap lightest and volatile compounds in 3rd separator. It is important to choose the right vessel size that will meet your current needs as well as future demand.
How many pressure is best for your CO2 extraction process requirements?
The choice of CO2 extraction pressure is a changing factor. If the extraction pressure is too high, the useless substances in the plant will be extracted, such as wax and chlorophyll. If the extraction pressure is too low, the extraction time will be increased.
How can the minimum operating costs be achieved?
Further Reading: CBD Oil CO2 Extraction Machine
CO2 Extraction Method of Cinnamon Oil
Using orthogonal test design, the extraction yield of cinnamon oil is the evaluation index, which affects the four factor variables of extraction yield (temperature, pressure, CO2 flow, bulk density), each factor takes three levels, according to orthogonal Experimental design L9 (34).
Supercritical co2 extraction of cinnamon for 2 to 3 hours basically reaches the extraction limit, and the extension of time has little meaning, and in dynamic extraction, co2 has good fluidity, high solubility, and strong ability to carry substances, for the extraction of common plant materials.
3~4h has basically reached the extraction limit, so this experiment selected a fixed 3h as the extraction time, and did not further study the influence of time factors.
how to get an effective co2 extraction process of Cinnamon Oil
Extraction temperature
At a certain pressure, the extraction temperature affects the extraction yield by affecting the combination and dissociation of organic molecules and CO2 molecules.
The extraction temperature also affects the overall thermal effect of the extraction process.
On the one hand, the higher the extraction temperature, the smaller the density of CO2 fluid, the worse the solubility of organic matter and the lower the ability of carrying substances.
On the other hand, the higher the extraction temperature, the faster the fluid mass transfer speed. The former is not conducive to extraction, and the latter is conducive to extraction.
In this experiment, through the orthogonal experiment, we can know that the range of temperature factor is the smallest, which means that in this experiment, compared with other factors, temperature has the smallest influence on the extraction rate of Cinnamon by supercritical CO2 extraction.
Combined with the orthogonal experiment, the extraction temperature of 40 ℃ is better.
Extraction pressure
The polarity of supercritical co2 increases with the increase of pressure, which affects the binding capacity of supercritical co2 and solute.
In this experiment, the range of pressure factor is the largest, which indicates that the pressure has the greatest influence on the extraction yield of cinnamon.
The results show that with the increase of pressure, the extraction yield also increases.
Considering the higher pressure, the cost and power consumption of extraction equipment will increase greatly.
Therefore, from the perspective of practical application, 35MPa can meet the requirements, so the extraction pressure of 35MPa is better.
CO2 flow
With the increase of co2 flow rate, the extraction yield is decreasing under different extraction co2 flow rate.
This is mainly because the increase of co2 flow rate reduces the contact time between co2 and raw materials, which is not conducive to the improvement of extraction yield. On the other hand, through the knowledge of chemical kinetics, we know that the increase of co2 flow rate will accelerate the speed of material layer and improve the mass transfer rate, which will improve the extraction speed.
It can be seen from this experiment and previous exploratory experiments that under various operating conditions, supercritical CO2 extraction of cinnamon for 2-3H has basically reached the extraction limit, and the extraction rate has no obvious change in unit time after prolonging the time.
Moreover, in dynamic extraction, the capacity of CO2 fluidity, solubility and carrying substance has been very good, and CO2 flow will increase CO2 consumption and cost, so by increasing dioxygen It is not advisable to increase the extraction speed by the flow rate of carbonization.
Considering comprehensively, the co2 flow rate of 30kg / h is better.
Raw material bulk density
Under different packing density of raw materials, with the increase of packing density of raw materials, the extraction yield decreases. This is mainly because the excessive packing density of raw materials makes the permeability worse, so that CO2 can only pass through the material layer along the route with low resistance, and the material is broken down (many small holes are produced), which makes the extraction significantly uneven.
At the same time, under the condition of high packing density, the moisture content in cinnamon powder is fast due to the effect of pressure. It will affect the extraction of cinnamon oil and increase the bulk density, which means it will take more time and energy to crush the raw materials.
Therefore, it is suggested that the bulk density of raw materials should be (0.44 ± 0.02) g / ml.
The best co2 extraction process
Through the comprehensive analysis of the orthogonal test results, the better technological conditions were obtained:
Extraction temperature 40 ℃, extraction pressure 35 MPa, CO2 flow rate 30 kg / h, bulk density (0.44 ± 0.02) g / ml.
The results showed that the extraction rate of cinnamon oil was 5.8% – 6.0%, the aroma of cinnamon oil was good, the appearance of cinnamon oil was brownish red, the color of cinnamon oil was darker than that of conventional steam distillation, the extraction rate of cinnamon oil by supercritical co2 extraction was more than 5 times of that by steam distillation, and the extraction time was also greatly shortened.
The temperature is low, the whole extraction and separation process is carried out in dark field, avoiding the decomposition, precipitation and other changes in the conventional extraction process, and maintaining the original characteristics of the components in cinnamon oil to the greatest extent.
co2 extraction process VS Steam distillation
Supercritical co2 extraction is a better technology to extract and separate plant essential oil.
Using supercritical co2 extraction to extract cinnamon, the oil yield is more than 5 times of that of ordinary steam distillation, and the extraction time is shortened.
The obtained oil has natural color and pure fragrance.
In the range of the experimental conditions, the best operating conditions were:
Extraction temperature 40 ℃, extraction pressure 35 MPa, CO2 flow rate 30 kg / h, bulk density (0.44 ± 0.02) g / ml. This method is easy to operate, safe and non-toxic, and there is no residual solvent problem, so it has a good development prospect.
co2 extraction process VS Steam distillation
Supercritical co2 extraction is a better technology to extract and separate plant essential oil.
Using supercritical co2 extraction to extract cinnamon, the oil yield is more than 5 times of that of ordinary steam distillation, and the extraction time is shortened.
The obtained oil has natural color and pure fragrance.
In the range of the experimental conditions, the best operating conditions were:
Extraction temperature 40 ℃, extraction pressure 35 MPa, CO2 flow rate 30 kg / h, bulk density (0.44 ± 0.02) g / ml. This method is easy to operate, safe and non-toxic, and there is no residual solvent problem, so it has a good development prospect.
How to extraction cinnamon oil
Supercritical co2 extraction is a better technology to extract and separate plant essential oil.
Using supercritical co2 extraction to extract cinnamon, the oil yield is more than 5 times of that of ordinary steam distillation, and the extraction time is shortened.
The obtained oil has natural color and pure fragrance.
In the range of the experimental conditions, the best operating conditions were:
Extraction temperature 40 ℃, extraction pressure 35 MPa, CO2 flow rate 30 kg / h, bulk density (0.44 ± 0.02) g / ml. This method is easy to operate, safe and non-toxic, and there is no residual solvent problem, so it has a good development prospect.
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