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Device and method for separating methyl oleate and methyl linoleate from biodiesel

A technology of methyl linoleate and methyl oleate, which is applied in the field of methyl linoleate and biodiesel separation of methyl oleate, can solve problems such as environmental pollution, and achieve the effect of increasing applicability

Pending Publication Date: 2021-07-02
HEBEI JINGU RECYCLING RESOURCES DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But adopt chemical reaction method to separate methyl oleate, methyl linoleate at present, when obtaining methyl oleate, the separation of methyl linoleate will have the generation of waste residue, waste gas, cause environmental pollution,

Method used

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  • Device and method for separating methyl oleate and methyl linoleate from biodiesel
  • Device and method for separating methyl oleate and methyl linoleate from biodiesel
  • Device and method for separating methyl oleate and methyl linoleate from biodiesel

Examples

Experimental program
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Effect test

Embodiment 2

[0061] The device for separating methyl oleate and methyl linoleate from biodiesel is the same as in Example 1.

[0062] The method for separating methyl oleate and methyl linoleate from biodiesel by using said device may further comprise the steps:

[0063] (1) Pump the biodiesel whose temperature is controlled at 0°C in the biodiesel storage tank 1 into the fractionation kettle 2 and start the refrigerator and cooling water pipe of the fractionation kettle 2, and then pump the ethanol storage tank into the fractionation kettle 2 The absolute ethanol solution in the tank 4 is cooled according to the speed of 3°C / h, and the stirring speed is controlled at 70 rpm, and the temperature is dropped to (-19)°C; The water is cooled by the coil, the temperature is lowered at 0.8°C / h, the stirring speed is controlled at 50 rpm, the temperature is reduced to (-26)°C, and the temperature is kept for 12 hours to obtain a methyl oleate crystal-ethanol mixture; The mass ratio of water etha...

Embodiment 3

[0068] The device for separating methyl oleate and methyl linoleate from biodiesel is the same as in Example 1.

[0069] The method for separating methyl oleate and methyl linoleate from biodiesel by using said device may further comprise the steps:

[0070] (1) Pump the biodiesel whose temperature is controlled at (-5)°C in the biodiesel storage tank 1 into the fractionation kettle 2 and start the refrigerator and cooling water pipe of the fractionation kettle 2, and then pump the biodiesel into the fractionation kettle 2 Enter the absolute ethanol solution in the ethanol storage tank 4, lower the temperature according to the speed of 2°C / h, and control the stirring speed at 60 rev / min, and drop the temperature to (-17)°C; then continue in the fractionation kettle 2 Pump chilled water through the coil to cool down, cool down at 0.6°C / h, control the stirring speed at 40 rpm, lower the temperature to (-24)°C, keep the temperature for 10 hours, and obtain methyl oleate crystals-...

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Abstract

The invention discloses a device for separating methyl oleate and methyl linoleate from biodiesel. The device comprises a biodiesel storage tank, an ethanol storage tank, a fractionation kettle, a filter, a methyl linoleate flash evaporation device and a methyl oleate flash evaporation device, the biodiesel storage tank is sequentially connected with the ethanol storage tank, the fractionation kettle and the filter; the filter is respectively connected with the methyl linoleate flash evaporation device and the methyl oleate flash evaporation device; the methyl oleate flash evaporation device comprises a methyl oleate flash evaporation heater, a vacuum methyl oleate flash evaporation tank and a methyl oleate storage tank; and the filter is sequentially connected with the methyl oleate flash evaporation heater, the vacuum methyl oleate flash evaporation tank and the methyl oleate storage tank. According to the device disclosed by the invention, the methyl oleate device and the methyl linoleate device are arranged to separate methyl oleate and methyl linoleate from biodiesel, no waste residue or waste gas is generated by adopting the device disclosed by the invention, environmental pollution is not caused, and flash-evaporated ethanol can be recycled to save raw materials.

Description

technical field [0001] The invention relates to the technical field of oil refining, in particular to a device and method for separating methyl oleate and methyl linoleate from biodiesel. Background technique [0002] Biodiesel refers to vegetable oil (such as rapeseed oil, soybean oil, peanut oil, corn oil, cottonseed oil, etc.), animal oil (such as fish oil, lard, tallow, sheep oil, etc.), waste oil or microbial oil and methanol or ethanol Fatty acid methyl or ethyl esters formed by ester conversion. Biodiesel is a typical "green energy", which has the characteristics of good environmental performance, good engine start performance, good fuel performance, wide source of raw materials, and renewable properties. Vigorously developing biodiesel has important strategic significance for sustainable economic development, promoting energy substitution, reducing environmental pressure, and controlling urban air pollution. [0003] The composition of biodiesel is complex, basical...

Claims

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Application Information

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IPC IPC(8): C11B7/00
CPCC11B7/00C11B7/0075
Inventor 赵敏仲王子腾
Owner HEBEI JINGU RECYCLING RESOURCES DEV
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