Method and system for separating microalgae grease
A microalgae oil and separation method technology, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problem of affecting the separation purity and efficiency of microalgae components, the difficulty of oil phase and water phase separation, and many operating steps and other problems, to achieve the effect of no extractant residue, high extraction and separation efficiency, and high oil purity
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Embodiment 1
[0062] Take 300 grams of air-dried monoacipes, and the water content is 8% by weight. Add 30 grams of water after mechanical crushing, and after mixing, press and slice into thin slices with a length of about 10 mm, a width of about 5 mm, and a thickness of about 0.5 mm. Place the single needle algae flakes in a stainless steel extraction kettle with a volume of 10L, and after vacuuming with a vacuum pump, add 3L of butane / dimethyl ether mixed solvent (the molar ratio of butane to dimethyl ether is 1:2.3), under pressure Extract at 0.7MPa and a temperature of 45°C, repeat the extraction 3 times, and extract for 40 minutes each time. After each extraction, the extracted mixture is put into a stainless steel grease separation kettle with a volume of 10L, and the stainless steel grease separation kettle is decompressed to -0.01MPa recovers the extractant to obtain microalgae oil. After the extractant passes through the buffer tank, the residual oil is removed to obtain a pure ex...
Embodiment 2
[0065] Take 210 grams of air-dried Scenedesmus, with a water content of 10% by weight. Add 12 grams of water after mechanical crushing, and after mixing, press and slice into thin slices with a length of about 10 mm, a width of about 5 mm, and a thickness of about 0.5 mm. Place the Scenedesmus flakes in a stainless steel extraction kettle with a volume of 10 L, and after vacuuming with a vacuum pump, add 3 L of butane / dimethyl ether mixed solvent (the molar ratio of butane to dimethyl ether is 1:0.1), at a pressure of 0.6 Extract at MPa and temperature of 48°C, repeat the extraction 4 times, each extraction takes 35 minutes, and the extraction mixture obtained after each extraction is put into a stainless steel grease separation kettle with a volume of 10L, and the stainless steel grease separation kettle is decompressed to - 0.02MPa recovers the extractant to obtain microalgae oil. After the extractant passes through the buffer tank, the residual grease is removed to obtain ...
Embodiment 3
[0068] Take 230 grams of air-dried spirulina, and the water content is 7% by weight. Add 20 grams of water after mechanical crushing, and after mixing, press and slice into flakes with a length of about 10 mm, a width of about 5 mm, and a thickness of about 0.5 mm. Place the spirulina flakes in a stainless steel extraction kettle with a volume of 10L, and after vacuuming with a vacuum pump, add 3L of butane / dimethyl ether mixed solvent (the molar ratio of butane to dimethyl ether is 1:10), at a pressure of 0.71 Extract at MPa and temperature 40°C, repeat the extraction 6 times, each time for 30 minutes, the extraction mixture obtained after each extraction is put into a stainless steel grease separation kettle with a volume of 10L, and the stainless steel grease separation kettle is decompressed to - 0.05MPa recovers the extractant to obtain microalgae oil. After the extractant passes through the buffer tank, the residual grease is removed to obtain a pure extractant, which i...
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