Combined method for producing high-quality lubricant base oil and environment-friendly aromatic hydrocarbon oil

A technology of lubricating base oil and combination method, which is applied in the direction of hydrocarbon oil treatment, petroleum industry, hydroprocessing process, etc., and can solve the problems of low yield of the target product of cracking reaction, low yield, and inability to produce environmentally friendly aromatic oil, etc.

Active Publication Date: 2020-07-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this technology is that after the Group I base oil is hydrotreated, some irrational components of lubricating oil (polycyclic naphthenes and a small amount of polycyclic aromatic hydrocarbons) are converted into

Method used

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  • Combined method for producing high-quality lubricant base oil and environment-friendly aromatic hydrocarbon oil
  • Combined method for producing high-quality lubricant base oil and environment-friendly aromatic hydrocarbon oil
  • Combined method for producing high-quality lubricant base oil and environment-friendly aromatic hydrocarbon oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The raw material is Class I 250SN base oil that is dewaxed, solvent refined, and clay refined from the third-line distillate oil of Daqing, and its properties are shown in Table 1. The temperature at the top of the extraction tower is 75°C, the temperature at the bottom of the extraction tower is 35°C, and the extraction pressure is 0.1MPa. The extraction solvent is a mixed solvent of furfural and ethanol, and the ethanol content is 5% of the total solvent weight. The mass ratio is 1:1, the recovery of raffinate oil and extract oil solvent is carried out by nitrogen stripping, the residual pressure is 500mmHg, the gas injection volume is 0.5L / KG, and the temperature is 130°C. The pressure of the hydrofining / hydro-upgrading of the raffinate oil after recovering the solvent is 15.0MPa, and the volume space velocity of the hydro-finishing / hydro-upgrading (2.0h -1 / 2.0h -1 ), the volume ratio of hydrogen to oil is 1000:1, and the specific results obtained are shown in Tabl...

Embodiment 2

[0042] FF-36 (molybdenum-nickel type) and FHUDS-5 (molybdenum-cobalt type) were selected as hydrofining catalysts, and their volume ratio was 1:1. The properties of hydrorefining catalysts are shown in Table 2.

[0043] The properties of raw oil are shown in Table 1. The temperature at the top of the extraction tower is 75°C, the temperature at the bottom of the extraction tower is 35°C, and the extraction pressure is 0.1MPa. The extraction solvent is a mixed solvent of furfural and ethanol, and the ethanol content is 5% of the total solvent weight. The mass ratio is 1:1, the recovery of raffinate oil and extract oil solvent is carried out by nitrogen stripping, the residual pressure is 500mmHg, the gas injection volume is 0.5L / KG, and the temperature is 130°C. The pressure of the hydrofining / hydro-upgrading of the raffinate oil after recovering the solvent is 15.0MPa, and the volume space velocity of the hydro-finishing / hydro-upgrading (2.0h -1 / 2.0h -1 ), the volume ratio ...

Embodiment 3

[0045] FF-36 (molybdenum-nickel type) and FHUDS-5 (molybdenum-cobalt type) were selected as hydrofining catalysts, and their volume ratio was 1:1. The properties of hydrorefining catalysts are shown in Table 2.

[0046] The raw material is Class I 400SN base oil of Maoming Minus 3 and Minus 4 mixed distillate oil, which has been solvent dewaxed, solvent refined, and clay refined. The properties of the raw oil are shown in Table 1. The temperature at the top of the extraction tower is 75°C, the temperature at the bottom of the extraction tower is 35°C, and the extraction pressure is 0.1MPa. The extraction solvent is a mixed solvent of furfural and ethanol, and the ethanol content is 5% of the total solvent weight. The mass ratio is 1:1, the recovery of raffinate oil and extract oil solvent is carried out by nitrogen stripping, the residual pressure is 500mmHg, the gas injection volume is 0.5L / KG, and the temperature is 130°C. The pressure of the hydrofining / hydro-upgrading of t...

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Abstract

The invention discloses a combined method for producing lubricant base oil and environment-friendly aromatic hydrocarbon oil. API I lubricant base oil with very low polycyclic aromatic hydrocarbon content produced by three old processes is subjected to solvent extraction, and the extraction depth is controlled, so that aromatic hydrocarbon in raffinate oil is further reduced; then through hydrofining and hydro-upgrading, the color and stability are improved, the viscosity index is increased, and the indexes of API III type lubricant base oil are reached; meanwhile, the aromatic hydrocarbon isenriched into the extract oil, so that the content of polycyclic aromatic hydrocarbon (3.0%, aromatic hydrocarbon content) in the extract oil is 20%, and the excellent rubber filling oil for the tireindustry is obtained. According to the method disclosed by the invention, two products with high additional values can be obtained at the same time by modifying the base oil I; and the method has theadvantages of high target product yield, low operation cost and no waste treatment in the processing process.

Description

technical field [0001] The invention relates to a combination method for simultaneously obtaining environmentally friendly aromatic oil and Class III lubricating oil base oil, specifically a method for obtaining environmentally friendly aromatic oil by using a solvent secondary extraction process, and at the same time undergoing a hydrogenation refining / hydrogenation upgrading process Process for producing Group III lubricating base oils. Background technique [0002] Rubber filler oil plays an important role as an auxiliary agent in the rubber industry. It can improve the plasticity of the rubber, reduce the viscosity of the rubber and the temperature during mixing, and can promote the dispersion and mixing of other ingredients. Extrusion acts as a lubricant and reduces the hardness of vulcanized rubber and improves its properties. Rubber filler oil can also increase rubber output, reduce costs, improve rubber processing performance and performance, and plays an important ...

Claims

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Application Information

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IPC IPC(8): C10G67/04
CPCC10G67/04C10G2300/202C10G2300/4006C10G2300/4012C10G2300/70
Inventor 赵威全辉姚春雷张志银孙国权刘林东
Owner CHINA PETROLEUM & CHEM CORP
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