Method for preparing marine fuel oil by utilizing illegal cooking oil based on glycerol esterification process
A technology of glyceride and waste oil, applied in the field of biodiesel preparation, can solve the problems of engine corrosion, high acidity value and high energy consumption, and achieve the effects of avoiding excessive methanol residue, reducing the amount of solid impurities and reducing the acidity value.
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Embodiment 1
[0022] Embodiment 1. A method for preparing marine fuel oil from waste oil based on the glycerol esterification process, including:
[0023] S1. Pour the raw material oil into the first reaction kettle equipped with a heat exchanger and a filter screen, and the heat exchanger is located above the filter screen, and both the filter screen and the heat exchanger are inclined towards the slag discharge port of the first reaction kettle. Use a heat exchanger to preheat the raw material oil to 100~120°C, so that the liquid raw material oil will fall into the bottom of the first reaction kettle through the filter screen, and the solid impurities in the raw material oil will enter and drain along the surface of the heat exchanger and the surface of the filter net. The slag port is used to filter out solid impurities to obtain liquid crude oil;
[0024] S2. Pump liquid crude oil and glycerin into the reaction tube at a ratio of 1:1 to the molar ratio of fatty acids in glycerol to liqu...
Embodiment 2
[0030] Embodiment 2. A method for preparing marine fuel oil from waste oil based on the glycerol esterification process, including:
[0031] S1. Pour the raw material oil into the first reaction kettle equipped with a heat exchanger and a filter screen, and the heat exchanger is located above the filter screen, and both the filter screen and the heat exchanger are inclined towards the slag discharge port of the first reaction kettle. Use a heat exchanger to preheat the raw material oil to 100~120°C, so that the liquid raw material oil will fall into the bottom of the first reaction kettle through the filter screen, and the solid impurities in the raw material oil will enter and drain along the surface of the heat exchanger and the surface of the filter net. The slag port is used to filter out solid impurities to obtain liquid crude oil;
[0032] S2. Pump liquid crude oil and glycerol into the reaction tube at a ratio of 1.5:1 to the fatty acid molar ratio of glycerol and liqui...
Embodiment 3
[0038] Embodiment 3, the method for preparing bunker fuel oil from waste oil based on the glycerol esterification process, including:
[0039]S1. Pour the raw material oil into the first reaction kettle equipped with a heat exchanger and a filter screen, and the heat exchanger is located above the filter screen, and both the filter screen and the heat exchanger are inclined towards the slag discharge port of the first reaction kettle. Use a heat exchanger to preheat the raw material oil to 100~120°C, so that the liquid raw material oil will fall into the bottom of the first reaction kettle through the filter screen, and the solid impurities in the raw material oil will enter and drain along the surface of the heat exchanger and the surface of the filter net. The slag port is used to filter out solid impurities to obtain liquid crude oil;
[0040] S2. Pump liquid crude oil and glycerol into the reaction tube at a ratio of 2:1 to the molar ratio of fatty acids in glycerol to liq...
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Abstract
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