Clean technology for enriching unsaturated fatty acid methyl ester
A fatty acid methyl ester and unsaturated technology, which is applied in the field of enriching unsaturated fatty acid methyl ester, can solve the problems of urea wastewater that cannot be treated, high energy consumption, and low product purity, so as to reduce energy consumption and production cost, and achieve high recovery efficiency , The effect of high unpacking efficiency
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[0016] Example 1
[0017] Set the iodine value to 96gI 2 / 100g of saturated and unsaturated fatty acid methyl ester mixed solution 300 kg was sent into the clathrate tank 1, and then 950 liters of methanol solution with a urea content of 200 kg was added to the clathrate tank 1 under stirring conditions, the clathrate tank temperature was At 40°C, the pressure is 0.1MPa, the saturated fatty acid methyl esters in the mixed solution of saturated and unsaturated fatty acid methyl esters and urea form clathrates, which are filtered by the plate and frame filter press 2 to obtain 28 kg of urea cake, which is recycled; The filtrate is sent to the freezer 3, and it is frozen and crystallized at a temperature of 8°C for 24 hours; then it is filtered with a plate and frame filter press 4, and the filtrate is pumped into the evaporation kettle 5, and the methanol in the filtrate is removed under reduced pressure. When the regenerated methanol is used next time, the filtrate from which the...
Example Embodiment
[0018] Example 2
[0019] Set the iodine value to 86gI 2 / 100g of the saturated and unsaturated fatty acid methyl ester mixed solution 300 kg was sent to the clathrate tank 1, and then 1060 liters of methanol solution with a urea content of 220 kg was added to the clathrate tank 1 under stirring conditions, and the clathrate tank temperature was At 30°C, the pressure is 0.1 MPa, the saturated fatty acid methyl esters in the mixed solution of saturated and unsaturated fatty acid methyl esters and urea form clathrates, which are filtered by the plate and frame filter press 2 to obtain 32 kg of urea filter cake, which is recycled; The filtrate is sent to the freezer 3, and it is frozen and crystallized at a temperature of 7°C for 18 hours; then it is filtered with a plate and frame filter press 4, the filtrate is pumped into the evaporation vessel 5, and the methanol in the filtrate is removed under reduced pressure. When the regenerated methanol is used next time, the filtrate fro...
Example Embodiment
[0020] Example 3
[0021] Set the iodine value to 103gI 2 / 100g of saturated and unsaturated fatty acid methyl ester mixed solution 300 kg is sent into the clathrate tank 1, and then 920 liters of methanol solution with a urea content of 180 kg is added to the clathrate tank 1 under stirring conditions, the clathrate tank temperature is At 30°C, the pressure is 0.1MPa, the saturated fatty acid methyl esters in the mixed solution of saturated and unsaturated fatty acid methyl esters and urea form clathrates, which are filtered by the plate and frame filter press 2 to obtain 25 kg of urea cake, which is recycled; The filtrate is sent to the freezer 3, and it is frozen and crystallized at a temperature of 6°C for 20 hours; then it is filtered with a plate and frame filter press 4, the filtrate is pumped into the evaporation vessel 5, and the methanol in the filtrate is removed under reduced pressure. When the regenerated methanol is used next time, the filtrate from which the meth...
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