Additive composition, diesel oil composition and method for improving biodiesel oxidation stability
A diesel composition and biodiesel technology, applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve the problems such as the effect is not obvious, and achieve the effects of enhanced effect, reduced dosage, and excellent oxidation stability
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[0142] The preparation of the additive composition provided by the invention is simple, and it only needs to mix the components constituting the additive composition uniformly.
[0143] The additive composition provided by the present invention is preferably used in an amount of 50-10000 ppm by weight relative to the base diesel, more preferably 50-5000 ppm by weight, further preferably 100-3000 ppm by weight, especially preferably 200-2000 ppm by weight. Especially, when the base diesel is pure biodiesel, the additive is preferably used in an amount of 600-2000 ppm by weight, more preferably 700-1500 ppm by weight. When the base diesel is a blend of biodiesel and petroleum diesel, the additive is preferably used in an amount of 100-1000 ppm by weight, more preferably 200-500 ppm by weight.
[0144] According to the diesel oil composition provided by the present invention, the diesel oil composition contains base diesel oil and an additive, and the base diesel oil contains bio...
preparation example 1
[0162] In a three-necked bottle, add 116.2 g of N-cocoyl-1,3-propylenediamine and 35.0 g of ethylenediaminetetraacetic acid (EDTA), wherein N-cocoyl-1,3-propylenediamine The molar ratio to ethylenediaminetetraacetic acid is 4:1, that is, the molar ratio of amine to carboxyl in amino polyacid is 1:1. Heat and stir to 190°C, pass through nitrogen to react for 20h, and collect the generated water with a collector, then lower the temperature to 120°C, use a vacuum pump to depressurize for 2h to remove a small amount of water generated by the reaction, a total of 13.6g of watery matter was collected, and obtained The reaction product was 125.2 g.
preparation example 2
[0164] In a three-neck flask, add 129.8g of N-oleyl-1,3-propylenediamine and 38.2g of nitrilotriacetic acid (NTA), wherein N-oleyl-1,3-propylenediamine and nitrilo The molar ratio of triacetic acid is 2:1, that is, the molar ratio of amine to carboxyl in amino polyacid is 1:1.5. Heat and stir to 170°C, pass through nitrogen to react for 18h, and collect the generated water with a collector, then lower the temperature to 110°C, use a vacuum pump to depressurize for 2h to remove a small amount of water generated by the reaction, and a total of 6.6g of watery matter is collected to obtain The reaction product was 149.4 g.
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