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Method for mixing raw material and solvent in lubricant extraction process

A technology for lubricating oil and solvent is applied in the field of mixing raw material and solvent in lubricating oil extraction process, which can solve the problems of incomplete extraction, low yield of refined oil in the device, poor mixing effect of raw material and furfural solvent, etc., and achieves improved yield , the effect of enhancing liquidity and improving yield

Inactive Publication Date: 2018-06-29
PANJIN NORTHERN ASPHALT FUEL
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The above-mentioned extraction device can separate substances with different properties. However, when the above-mentioned extraction device is used for extraction, the mixing effect of the raw material and the furfural solvent is poor, resulting in incomplete extraction, and the yield of the refined oil of the device is still not high, generally 50%. %~53%

Method used

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  • Method for mixing raw material and solvent in lubricant extraction process
  • Method for mixing raw material and solvent in lubricant extraction process

Examples

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Effect test

Embodiment 1

[0024] see figure 1 , a method for mixing raw materials and solvents in a lubricating oil extraction process, comprising the following processes:

[0025] (1) Furfural solvent 40 is divided into two parts, furfural solvent A42 and furfural solvent B41, wherein furfural solvent A42 is squeezed in the mixer 90 with pump 70, and simultaneously, raw material 10 enters in the mixer 90, after passing through the mixer 90 , the furfural solvent A42 and the raw material 10 form a premix 11, the premix 11 enters the raw material cooler 20 for cooling, and the cooled premix 11 enters the lower part of the extraction tower 30. The temperature of the premix 11 coming out of the raw material cooler 20 was 85°C. In premix 11, the mass ratio of furfural solvent A42 to raw material 10 is 15:100.

[0026] (2) In the extraction tower 30, the furfural solvent B41 enters from the upper part of the extraction tower 30, and the raw materials in the premix are upwardly contacted with the furfural...

Embodiment 2

[0031] A method for mixing raw materials and solvents in a lubricating oil extraction process, comprising the following processes:

[0032] (1) The furfural solvent is divided into two parts: furfural solvent A and furfural solvent B, wherein furfural solvent A and raw materials are mixed together by a mixer to form a premix, and the premix enters the lower part of the extraction tower after passing through the raw material cooler ; The temperature of the premix coming out of the raw material cooler is 100°C. In the premix, the mass ratio of furfural solvent A to raw materials is 20:100.

[0033] (2) In the extraction tower, the furfural solvent B enters from the upper part of the extraction tower, and the raw materials in the premix are in reverse contact with the furfural solvent B upwards. The temperature of the furfural solvent B entering from the upper part of the extraction tower is 135°C.

[0034] (3) Refined liquid is formed at the top of the extraction tower, and th...

Embodiment 3

[0038] A method for mixing raw materials and solvents in a lubricating oil extraction process, comprising the following processes:

[0039] (1) The furfural solvent is divided into two parts: furfural solvent A and furfural solvent B, wherein furfural solvent A and raw materials are mixed together by a mixer to form a premix, and the premix enters the lower part of the extraction tower after passing through the raw material cooler ; The temperature of the premix coming out of the raw material cooler is 95°C. In the premix, the mass ratio of furfural solvent to raw material is 18:100.

[0040] (2) In the extraction tower, the furfural solvent B enters from the upper part of the extraction tower, and the raw materials in the premix are in reverse contact with the furfural solvent B upwards. The temperature of the furfural solvent B entering from the upper part of the extraction tower is 130°C.

[0041] (3) Refined liquid is formed at the top of the extraction tower, and the pr...

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Abstract

The invention discloses a method for mixing raw materials and a solvent in a lubricant extraction process. The method comprises the following procedures: (1) dividing furfuraldehyde solvent into two parts of furfuraldehyde solvent A and furfuraldehyde B, wherein the furfuraldehyde A and the raw materials form a premix after being commonly mixed through a mixer, and the premix enters the lower partof an extraction tower after passing through a raw material cooler; (2) enabling the furfuraldehyde B to enter from the upper part of the extraction tower in the extraction tower, enabling the raw materials in the premix to upward and reversely contact with the furfuraldehyde B; and (3) forming refining solution at the tower top of the extraction tower, maintaining the pressure of the tower top at 0.5 MPa, enabling the refining solution to enter the refining solution recycling system by self-pressure; forming dispatching solution at the tower bottom, enabling the dispatching solution to enterthe dispatching solution recycling system after being discharged from the tower bottom. Through the method disclosed by the invention, the separation effect of the extraction tower can be effectivelyimproved, and the yield of the refining oil in the raw material is improved.

Description

technical field [0001] The invention relates to a liquid-liquid extraction process, in particular to a method for mixing raw materials and solvents in the lubricating oil extraction process. Background technique [0002] In the process of lubricating oil production, in order to make the lubricating oil have better viscosity-temperature performance, anti-oxidation stability and lower carbon residue value, it is necessary to remove most of the polycyclic short side chain aromatics and colloids from the lubricating oil raw material , these substances that need to be removed are called non-ideal substances. [0003] To achieve the above purpose, refinery engineers designed an extraction unit, see figure 2 , figure 2 It is a schematic flow diagram of the extraction device, through which the ideal components and non-ideal components in the lubricating oil raw material are separated. [0004] In this extraction unit, please continue to figure 2 The raw material 101 containing l...

Claims

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Application Information

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IPC IPC(8): C10G21/16C10M177/00B01F3/08
CPCC10G21/16C10M177/00C10G2400/10C10G2300/1062B01F23/405B01F23/49
Inventor 龚鹏郭保坤孙柏军
Owner PANJIN NORTHERN ASPHALT FUEL
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