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A method for producing lubricating oil base oil

A lubricating oil base oil and deoiling technology, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrocarbon oil treatment products, etc., can solve the problems of poor product quality and low yield, and achieve the effect of improving product quality and technical economy

Active Publication Date: 2022-04-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is in order to overcome the low yield of raw material production API I class base oil with the intermediate base sulfur-containing oil in the prior art, the defect of poor product quality

Method used

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  • A method for producing lubricating oil base oil
  • A method for producing lubricating oil base oil
  • A method for producing lubricating oil base oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Using the second-line fraction of Saudi light crude oil as the intermediate base oil raw material, in the presence of the RL-2 catalyst, the intermediate base oil raw material is subjected to hydrogenation treatment to obtain a hydrorefined oil, and the hydrorefined oil is Carry out solvent dewaxing and deoiling treatment to obtain dewaxed oil, waxy oil and deoiled wax respectively; then extract the dewaxed oil with solvent to obtain raffinate oil and extract oil, and the raffinate oil is supplemented and refined I, to obtain lubricating oil base oil, and the extracted oil is subjected to re-extraction treatment to obtain respectively environment-friendly aromatic hydrocarbon rubber extension oil and polycyclic aromatic hydrocarbon oil; then the deoiled wax is subjected to supplementary refining treatment II to obtain petroleum wax.

[0082] The specific process conditions involved in the above examples are shown in Table 2, the yields of products obtained in each proces...

Embodiment 2

[0084] The third-line distillate of Iranian crude oil is used as the intermediate base oil raw material. The specific process conditions are shown in Table 2. The yield of products obtained in each process step is shown in Table 3. The obtained hydrotreated oil, lubricating oil base oil and environment-friendly aromatic hydrocarbon rubber filling The properties of the oil are shown in Table 4.

Embodiment 3

[0086] The fourth line distillate of Saudi medium crude oil is used as the intermediate base oil raw material. The specific process conditions are shown in Table 2. The yield of products obtained in each process step is shown in Table 3. The obtained hydrorefined oil, lubricating oil base oil and environment-friendly The properties of aromatic rubber extender oil are shown in Table 4.

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Abstract

The invention relates to the field of base oil production, and discloses a method for producing lubricating oil base oil. The method comprises: (1) hydrotreating an intermediate base oil raw material to obtain hydrorefining with a refractive index of 1.45-1.53 ​​at 70°C (2) subjecting the hydrorefined oil to solvent dewaxing and deoiling to obtain dewaxed oil; (3) subjecting the dewaxed oil to solvent extraction to obtain raffinate oil and extracted oil; (4) The raffinate oil is subjected to supplementary refining treatment I to obtain lubricating oil base oil. The method for producing lubricating base oil provided by the present invention can simultaneously produce API class I base oil, petroleum wax and rubber filler oil, and the method of the present invention can improve the product quality and technical economy of producing lubricating base oil from intermediate base oil sex.

Description

technical field [0001] The invention relates to the field of base oil production, in particular to a method for producing lubricating oil base oil. Background technique [0002] API Group I base oils are generally produced from light deasphalted oil produced by solvent deasphalting of vacuum distillates or vacuum residues of petroleum, and are produced by physical separation methods such as solvent refining, solvent dewaxing and supplementary refining. Compared with the API II / III base oil produced by hydrogenation process, the aromatics content of API Group I base oil is greater than 10%, and when the quality index meets the standard requirements, the higher the aromatics content, the more effective it is for polar lubricating oil additives. The better the solubility and dispersion performance. Therefore, API Group I base oil is still one of the main components of blended lubricant products. [0003] Traditionally, raw materials for producing API Group I base oils are vac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/14
CPCC10G67/14C10G2400/10C10G2400/30
Inventor 管翠诗王玉章丁洛蔡晨彭东岳
Owner CHINA PETROLEUM & CHEM CORP
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