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Combined method for producing high-quality lube base oil and environmentally friendly aromatic oil

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

Active Publication Date: 2021-10-08
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 ideal components, but at the same time it is inevitable The cracking reaction reduces the yield of the target product, and the worse the raw material, the lower the yield, and it cannot produce environmentally friendly aromatic oil

Method used

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  • Combined method for producing high-quality lube base oil and environmentally friendly aromatic oil
  • Combined method for producing high-quality lube base oil and environmentally friendly aromatic oil
  • Combined method for producing high-quality lube base oil and environmentally friendly aromatic oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Taking Daqing minus three-line distillate oil, solvent dewaxing, solvent purification, white soil refined Class I 250SN base oil is raw material, and its nature is shown in Table 1. The top of the tower is 75 ° C, the extraction of the bottom temperature is 35 ° C, and the pressure is 0.1MPa, the extraction solvent is furfural and ethanol mixed solvent, wherein the ethanol content is 5% of the total solvent weight, solvent and raw oil. The mass ratio is 1: 1, the taking the effluent and extracting the oil solvent recovered with nitrogen steaming, the residual pressure is 500 mmHg, and the gas is 0.5 l / kg, the temperature is 130 ° C. The pressure of the residual oil after recovery solvent is 15.0 MPa, hydrotreating / hydrogenation modification volume vacuum speed (2.0H -1 / 2.0h -1 ), The hydrogen supply ratio is 1000: 1, the specific results obtained are shown in Table 3-4.

Embodiment 2

[0042] Hydrogenation catalysts Select FF-36 (molybdenum-nickel type) and FHUDS-5 (molybdenum-cobalt type), which is 1: 1, and the hydrotreating catalyst properties are shown in Table 2.

[0043] The properties of the raw material oil are shown in Table 1. The top of the tower is 75 ° C, the extraction of the bottom temperature is 35 ° C, and the pressure is 0.1MPa, the extraction solvent is furfural and ethanol mixed solvent, wherein the ethanol content is 5% of the total solvent weight, solvent and raw oil. The mass ratio is 1: 1, the taking the effluent and extracting the oil solvent recovered with nitrogen steaming, the residual pressure is 500 mmHg, and the gas is 0.5 l / kg, the temperature is 130 ° C. The pressure of the residual oil after recovery solvent is 15.0 MPa, hydrotreating / hydrogenation modification volume vacuum speed (2.0H -1 / 2.0h -1 ), The hydrogen supply ratio is 1000: 1, the specific results obtained are shown in Table 3-4.

Embodiment 3

[0045] Hydrogenation catalysts Select FF-36 (molybdenum-nickel type) and FHUDS-5 (molybdenum-cobalt type), which is 1: 1, and the hydrotreating catalyst properties are shown in Table 2.

[0046] Taking Maoming minus three, reduced four-wire mixed distillate oil, solvent dewaxing, solvent refining, white soil refined Class I 400SN base oil as raw material, the nature of the raw material oil is shown in Table 1. The top of the tower is 75 ° C, the extraction of the bottom temperature is 35 ° C, and the pressure is 0.1MPa, the extraction solvent is furfural and ethanol mixed solvent, wherein the ethanol content is 5% of the total solvent weight, solvent and raw oil. The mass ratio is 1: 1, the taking the effluent and extracting the oil solvent recovered with nitrogen steaming, the residual pressure is 500 mmHg, and the gas is 0.5 l / kg, the temperature is 130 ° C. The pressure of the residual oil after recovery solvent is 15.0 MPa, hydrotreating / hydrogenation modification volume v...

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Abstract

The invention discloses a combined method for producing lubricating oil base oil and environment-friendly aromatic hydrocarbon oil. The API Class I lubricating oil base oil with very low content of condensed ring aromatics produced by the "old three sets" process is subjected to solvent extraction, and the extraction depth is controlled to further reduce the aromatics in the raffinate oil; Hydrogen modification, improve color and stability, increase viscosity index, reach API Ⅲ lubricating base oil index; at the same time, aromatics are enriched in the extracted oil, so that the content of condensed ring aromatics in the extracted oil is <3.0%, and the content of aromatics is >20% , to obtain excellent rubber filler oil for tire industry. The method of the invention can simultaneously obtain two kinds of high value-added products by modifying the class I base oil, and has the advantages of high yield of the target product, low operation cost and no waste disposal in the processing process.

Description

Technical field [0001] The present invention relates to a method of composition at the same time to obtain environmental class Ⅲ aromatic oil and lubricant base oil, in particular using a solvent extraction process to obtain a secondary environmental aromatic oil, and hydrotreated / Technology hydroupgrading ⅲ process for producing lubricating base oil class. Background technique [0002] Rubber extender oil in the rubber industry as an adjuvant plays an important role, can improve the plasticity of the rubber, the lower the temperature at the kneading and compound viscosity, to promote dispersion and mixing with other agents, for the rolling extruding a lubricant, and can reduce the hardness of the vulcanized rubber, and improve its performance. Rubber filled with oil can also increase rubber production, reduce costs, improve processing performance and performance of rubber, has an important position in the rubber processing industry. [0003] As a largest amount, the wider use ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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