Preparation technology of bio-fuel with good cooling-filtering effect
A biofuel and preparation process technology, applied in fuels, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of short shelf life, insufficient cetane number, low calorific value, etc., and achieve a balance between freezing point and kinematic viscosity, Improve the effect of poor low temperature fluidity and good cold filtration effect
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Embodiment 1
[0018] The preparation process of biofuel with good cold filtration effect includes the following preparation methods:
[0019] 1) get fatty acid methyl ester, add respectively 0.001% hydroxy ethylidene diphosphonic acid of fatty acid methyl ester weight, 0.002% aminotrimethylene phosphonic acid, 0.008% ethyl acetate, 0.006% isoamyl butyrate, in At a frequency of 80 kHz and a temperature of 35° C., ultrasonic treatment for 8 minutes, the weight ratio of hydroxyethylidene diphosphonic acid and aminotrimethylene phosphonic acid is 1:2;
[0020] 2) Add 0.02% triethanolamine by weight of fatty acid methyl ester, and stir at 30° C. for 5 min;
[0021] 3) Pass through a hollow fiber membrane with a molecular weight cut off of 1.2 million to obtain the first permeate, and then pass the first permeate through a hollow fiber membrane with a molecular weight cut off of 1.8 million to obtain the product. After testing, the cold filter point of the biofuel in this example is -40°C, the f...
Embodiment 2
[0023] The preparation process of biofuel with good cold filtration effect includes the following preparation methods:
[0024] 1) get fatty acid methyl ester, add respectively 0.002% hydroxy ethylidene diphosphonic acid of fatty acid methyl ester weight, 0.004% aminotrimethylene phosphonic acid, 0.005% ethyl acetate, 0.008% isoamyl butyrate, in Ultrasonic treatment at a frequency of 50-80 kHz and a temperature of 35-45° C. for 5 minutes, the weight ratio of hydroxyethylidene diphosphonic acid and aminotrimethylene phosphonic acid is 1:2;
[0025] 2) Add 0.05% triethanolamine by weight of fatty acid methyl ester, and stir at 35° C. for 7 minutes;
[0026] 3) Pass through a hollow fiber membrane with a molecular weight cut off of 1.1 million to obtain the first permeate, and then pass the first permeate through a hollow fiber membrane with a molecular weight cut off of 1.9 million to obtain the product. After testing, the cold filter point of the biofuel in this embodiment is ...
Embodiment 3
[0028] The preparation process of biofuel with good cold filtration effect includes the following preparation methods:
[0029] 1) get fatty acid methyl ester, add respectively 0.003% hydroxy ethylidene diphosphonic acid of fatty acid methyl ester weight, 0.006% aminotrimethylene phosphonic acid, 0.002% ethyl acetate, 0.01% isoamyl butyrate, in At a frequency of 50 kHz and a temperature of 45° C., ultrasonic treatment for 3 minutes, the weight ratio of hydroxyethylidene diphosphonic acid to aminotrimethylene phosphonic acid is 1:2;
[0030] 2) Add 0.08% triethanolamine by weight of fatty acid methyl ester, and stir at 30° C. for 10 min;
[0031] 3) Pass through a hollow fiber membrane with a molecular weight cut off of 1 million to obtain the first permeate, and then pass the first permeate through a hollow fiber membrane with a molecular weight cut off of 2 million to obtain the product. After testing, the cold filter point of the biofuel in this example is -41°C, the freezi...
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