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Production method of hvii base oil and aromatic base oil

A production method and aromatic technology, which are applied in the production field of HVII base oil and aromatic mineral oil, can solve problems such as difficulty in improving product yield, achieve small yield loss, reduce device construction and operating costs, and improve quality Effect

Active Publication Date: 2021-12-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses high-pressure hydrotreating to remove polycyclic aromatic hydrocarbons and impurities in refined oil, and can produce products that meet environmental protection requirements, but the product yield is difficult to improve

Method used

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  • Production method of hvii base oil and aromatic base oil
  • Production method of hvii base oil and aromatic base oil
  • Production method of hvii base oil and aromatic base oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] This example is used to illustrate the method for producing base oil and aromatic base mineral oil provided by the present invention.

[0098] Adopt the same raw material, technological process and condition as comparative example 1 to produce base oil and aromatic base mineral oil, the difference is, according to figure 1 The process is to hydrogenate the raw material oil, and the hydrogenated oil of the hydrogenated product is used as the raw material oil in the production step of lubricating oil base oil and the production step of aromatic base oil.

[0099] Raw material A is used as hydrogenation raw material for hydroprocessing to obtain hydrotreated products, and the liquid product in the product, that is, hydrogenated oil, is used as raw material for lubricating base oil production, and the solvent dewaxing-solvent refining-clay supplementation of the lubricating oil base oil process is adopted Refined production of lubricating oil base oil. The extract oil refi...

Embodiment 2

[0117] This example is used to illustrate the method for producing base oil and aromatic base mineral oil provided by the present invention.

[0118] Adopt the same raw material, technological process and condition as comparative example 2 to produce base oil and aromatic base mineral oil, the difference is, according to figure 1 The process is to hydrogenate the raw material oil, and the hydrogenated oil of the hydrogenated product is used as the raw material oil in the production step of lubricating oil base oil and the production step of aromatic base oil.

[0119] Raw material B is used as hydrogenation raw material for hydrogenation treatment to obtain hydroprocessing products, and the liquid product in the product, namely hydrogenated oil, is used as raw material for lubricating oil base oil production, and the solvent dewaxing-solvent refining-clay supplementation of lubricating oil base oil process is adopted Refined production of lubricating oil base oil. The extract...

Embodiment 3

[0129] This example is used to illustrate the method for producing base oil and aromatic base mineral oil provided by the present invention.

[0130] Adopt the same raw material, technological process and condition as comparative example 3 to produce base oil and aromatic base mineral oil, the difference is, according tofigure 1 The process is to hydrogenate the raw material oil, and the hydrogenated oil of the hydrogenated product is used as the raw material oil in the production step of lubricating oil base oil and the production step of aromatic base oil.

[0131] Raw material C is used as hydrogenation raw material for hydrogenation treatment to obtain hydroprocessing products, and the liquid product in the product, that is, hydrogenated oil, is used as raw material for lubricating oil base oil production, and the solvent dewaxing-solvent refining-clay supplementation of lubricating oil base oil process is adopted Refined production of lubricating oil base oil. The extract...

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Abstract

The invention relates to the field of petrochemical industry, and discloses a combined process production method of HVII base oil and aromatic mineral oil. The production method comprises: contacting the raw material oil with hydrogen for hydrogenation reaction to obtain hydrogenated oil; combining the hydrogenated oil with dewaxed Solvent contacting for solvent dewaxing to obtain hydrodewaxed oil; contacting hydrodewaxed oil with extraction solvent for solvent refining to obtain refined oil and extracted oil; contacting refined oil with adsorbent for supplementary refining to obtain lubricating oil Base oil; the extracted oil is contacted with an extraction solvent for solvent extraction, and aromatic-based mineral oil and polycyclic aromatic hydrocarbon oil are separated. The method of the invention can control the saturation of hydrogenated aromatic hydrocarbons and ring-opening degree of naphthenes by using the content of benzo-α-pyrene in hydrogenated oil, and the yield loss of hydrogenated oil is small. The yield of HVII base oil produced by the method of the invention is high, the loss of viscosity index is small, the yield of aromatic base mineral oil is high, and each product meets the corresponding national or industrial standards.

Description

technical field [0001] The invention relates to a production method of base oil and aromatic mineral oil, in particular to a production method of HVII base oil and aromatic mineral oil. Background technique [0002] As the quality of crude oil processed by my country's oil refining enterprises becomes inferior and heavy, the content of aromatics and sulfur in raw materials for lubricating base oil production will increase, and the quality and yield of base oil will decrease, which will affect the profitability of enterprises. Raw materials for the production of lubricating oil base oils generally refer to the vacuum wax oil fractions obtained by separating gasoline, kerosene and diesel fractions from crude oil under normal pressure distillation, and then through vacuum distillation, as well as residual oils with a boiling point above 500°C, which are obtained by solvent deasphalting. asphalt oil. Distillate oil and light deoiling oil have the characteristics of high boiling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/14
CPCC10G67/14C10G2300/202C10G2400/30
Inventor 丁洛管翠诗王玉章蔡晨彭东岳闫亮
Owner CHINA PETROLEUM & CHEM CORP