Preparation process of multi-effect additive of low sulphur diesel oil
A low-sulfur diesel and additive technology, applied in fuel additives, petroleum industry, liquid carbon-containing fuel, etc., can solve the problem of low-temperature fluidity improvement of diesel oil and other issues
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example 1
[0041] Put 21g of vinyl acetate, 90g of 60-90°C petroleum ether and 0.9g of azobisisobutyronitrile in a 500ml high-pressure reactor equipped with an electric stirrer and a temperature control device, heat up and inject ethylene gas to maintain ethylene The pressure is about 8.0MPa (80kgf / cm 2 ), reacted at a temperature of 70° C. for 6 hours. Cool to room temperature after the completion of the reaction, vent the residual pressure of the reactor, and remove the solvent and unreacted matter by distillation under reduced pressure to obtain 25.2 g of the polymer product, add 25 g of aromatic hydrocarbon diluent oil to make about 50% dilution EVA1, and its analytical data are shown in Table 1 Show.
example 2
[0043] 21g vinyl acetate, 100g120 # Solvent gasoline and 0.9g dicyclohexyl peroxydicarbonate are placed in a 500ml high-pressure reactor equipped with an electric stirrer and a temperature control device, heated and injected with ethylene gas to maintain the ethylene pressure at about 8.0MPa (80kgf / cm 2 ), and reacted for 7 hours at a temperature of 80°C. Cool to room temperature after the reaction is over, vent the residual pressure of the reactor, and remove the solvent by distillation under reduced pressure to obtain 23.1 g of the polymer product, add 23 g of aromatic hydrocarbon diluent oil to make about 50% dilution EVA2, and its analytical data are shown in Table 1.
[0044] The performance data of commercial EVA are also listed in Table 1.
[0045] Table 1
[0046]
example 3
[0048] This example is the preparation of acrylates.
[0049] Mix 37.8g acrylic acid and 135.0g stearyl alcohol (the molar ratio of acrylic acid to stearyl alcohol is about 1.05:1), 55g120 # Solvent gasoline, 1.8g p-toluenesulfonic acid catalyst and 0.4g hydroquinone polymerization inhibitor are placed in a reactor equipped with an electric stirrer, a thermometer, a water separator, and a reflux condenser, heated and stirred to raise the temperature and reflux water separation reaction 5 hours, then cooled to 80°C, added 118g 120 # Solvent gasoline, washed with 5% NaOH aqueous solution until neutral, then washed three times with distilled water, washed with anhydrous CaCl 2 After drying, evaporate the solvent under reduced pressure to obtain the product.
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