Composition with diesel antiwear properties and diesel composition and their preparation method
A technology of composition and performance, applied in the fields of biofuel, petroleum industry, fuel additives, etc., can solve the problems of diesel mixing, clogging of filter screen, easy precipitation, etc., to improve lubricity, reduce the risk of clogging filter screen, The effect of easy availability of raw materials
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Embodiment 1
[0063] Biodiesel produced from vegetable oil (produced by Sinopec Shijiazhuang Refining and Chemical Branch) was processed through the following steps to obtain an ester-type antiwear agent that meets the procurement standards of Sinopec.
[0064] (1) Distillation
[0065] 20kg of vegetable oil biodiesel is processed by two-stage continuous rectification equipment, heated to 200°C by a preheater, and put into the first-stage rectification tower. The temperature of the first-stage rectification tower is controlled at 230°C, and the reflux ratio is controlled to be 1 and The cooling temperature at the top is 140°C, and saturated fatty acid methyl esters such as methyl laurate, methyl myristate, and methyl palmitate are separated, so that the content of methyl palmitate in the tower bottoms is less than 0.5% by weight, and the overhead distillates Then transfer the bottoms of the primary distillation to the secondary rectification tower, control the temperature of the secondary r...
Embodiment 2
[0079] Biodiesel produced from acidified oil (produced by Ningbo Jason Biodiesel Co., Ltd.) was processed through the following steps to obtain an acid-type antiwear agent that meets the procurement standards of Sinopec.
[0080] (1) Distillation
[0081]20kg of acidified oil biodiesel is processed by the two-stage continuous rectification equipment assembled by the rectification tower of Tianjin Pengxiang Company. It is heated to 200°C by the preheater and injected into the first-stage rectification tower to control the temperature of the first-stage rectification tower. 250°C, control the reflux ratio to 1.5 and the top cooling temperature to 150°C, separate saturated fatty acid methyl esters such as methyl laurate, methyl myristate, and methyl palmitate, so that the content of methyl palmitate in the bottoms Less than 0.5% by weight, reclaim the overhead distillate, then transfer the bottoms of the primary rectification to the secondary rectification tower, control the temp...
Embodiment 3
[0093] Prepare the ester type antiwear agent according to the method of Example 1, the difference is that the temperature of the first molecular distillation is 200°C, the absolute pressure is 0.1Pa, and 196g of the light component of the second molecular distillation is the final product, and the analysis results of the product See Table 5.
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