Continuous-phase-change tea oil extraction method
A technology of extraction and camellia oil, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of long extraction time, large solvent consumption, and long extraction time of organic solvent extraction, and achieve large-scale industrial continuous production , Reduction of solvent consumption and energy consumption, low extraction pressure and low analytical pressure
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Embodiment 1
[0024] Embodiment 1 A method for continuous phase-change extraction of camellia oil, comprising the following steps:
[0025] (1) Dry the tea seeds after cleaning and removing impurities at a temperature of 55°C, control the moisture content to ≤5%, and crush them to 40 meshes to obtain tea seed raw materials.
[0026] (2) The tea seeds after the treatment weigh 8500g and put them into the extraction kettle (20L) of the continuous phase change extraction device, and feed 25L n-butane, under the conditions of the critical pressure and critical temperature lower than the n-butane all the time , flows through the extraction kettle at a certain flow rate, extracts the camellia oil, enters the analysis kettle, turns n-butane into gas through heating and decompression, and then becomes liquid through compression, flows through the extraction kettle, and extracts the material again. For recycling, the extracted tea oil is stored in the analysis kettle, and released for collection aft...
Embodiment 2
[0027] Embodiment 2 A method for continuous phase-change extraction of camellia oil, comprising the following steps:
[0028] (1) Dry the tea seeds after cleaning and removing impurities at a temperature of 55°C, control the moisture content to ≤5%, and crush them to 30 mesh to obtain tea seed raw materials.
[0029](2) The tea seeds after the treatment weigh 8500g and put them into the extraction kettle (20L) of the continuous phase change extraction device, and feed 30L n-butane, under the condition that the critical pressure and critical temperature of the n-butane are always lower than that of n-butane , flows through the extraction kettle at a certain flow rate, extracts the camellia oil, enters the analysis kettle, turns n-butane into gas through heating and decompression, and then becomes liquid through compression, flows through the extraction kettle, and extracts the material again. For recycling, the extracted tea oil is stored in the analysis kettle, and released fo...
Embodiment 3
[0030] Embodiment 3 A method for continuous phase-change extraction of camellia oil, comprising the following steps:
[0031] (1) Dry the tea seeds after cleaning and removing impurities at a temperature of 50°C, control the moisture content to ≤5%, and crush them to 20 meshes to obtain tea seed raw materials.
[0032] (2) Weigh 8500g of the treated tea seeds into the extraction kettle (20L) of the continuous phase-change extraction device, and feed 25L of isobutane (R600a) alkanes. Under the conditions of pressure and critical temperature, isobutane (R600a) is compressed into liquid, and flows through the extraction kettle at a certain flow rate. After the tea seed oil is extracted, it enters the analysis kettle, and the isobutane (R600a) is decompressed by heating and decompression. The phase changes to gas, and then becomes liquid through compression, flows through the extraction kettle, extracts the material again, and recycles it. The extracted tea seed oil is stored in t...
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