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Method for producing high-grade lubricating oil base oil by full hydrogen regenerating of waste mineral oil

A technology of lubricating base oil and waste mineral oil, applied in lubricating compositions, petroleum industry, etc., can solve problems such as corrosion, achieve the effects of improving product performance, reducing product pour point, and improving poor quality

Active Publication Date: 2018-04-10
新疆聚力环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first technical problem to be solved by the present invention is to provide a method for the full hydrogen regeneration of waste mineral oil to produce high-grade lubricating oil base oil; this method solves the coking at the top of the high-pressure hydrofining reactor used in the method used in Chinese patent CN106350112A problem, and also solve the corrosion problem of heat exchangers and other equipment in the hydrofining reaction

Method used

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  • Method for producing high-grade lubricating oil base oil by full hydrogen regenerating of waste mineral oil
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  • Method for producing high-grade lubricating oil base oil by full hydrogen regenerating of waste mineral oil

Examples

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Embodiment 1

[0069] A method for the production of high-grade lubricating base oil by regenerating waste mineral oil in full hydrogen type. The specific process conditions are as follows: take a sample of waste mineral oil, as shown in sample 1 in Table 1 below. After testing, the raw material of waste mineral oil is dark and With high acid value, high sulfur content, high chlorine content, and high heavy metal content, the raw material passes through the raw material pretreatment process unit and the pre-hydrogenation process unit. The main process conditions for the raw material to enter the three process units are shown in Table 2. Table 3 shows the properties of lubricating base oil raw materials produced by hydrogenation pretreatment. The properties of the product lubricating base oil after hydrofractionation are shown in Table 4.

[0070] Table 1: The raw material properties of waste mineral oil in Example 1

[0071] nature

Waste mineral oil raw materials 1

Waste mineral oil raw ma...

Embodiment 2

[0082] A method for producing high-grade lubricating base oil by regenerating waste mineral oil in full hydrogen type. The specific process conditions are as follows: Raw material 2 in Table 1 passes the following process conditions. The raw material passes through the raw material pretreatment process unit and the pre-hydrogenation process unit. The main process conditions of the three process units are shown in Table 5, and the properties of lubricating base oil raw materials produced by raw material pretreatment and hydrogenation pretreatment are shown in Table 6. The properties of the product lubricating base oil after hydrofractionation are shown in Table 7.

[0083] Table 5 The main process conditions of the raw materials of Example 1 into the three process units

[0084] Process conditions

Raw material pretreatment process unit

Pre-hydrotreating process unit

Hydrofractionation process unit

Temperature / ℃

Into the scraped film evaporator raw material 340

Raw materia...

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Abstract

The invention discloses a method for producing high-grade lubricating oil base oil by full hydrogen regenerating of waste mineral oil. According to the method, a pre-hydrogenation reaction process isadded between a raw material pretreatment process and a hydrogenation fractionation process in the prior art; under hydrogen present conditions, heavy metal additives and gum asphalt as well as non-metallic impurities such as chlorine, phosphorus and silicon in a lubricating oil fraction are removed, and by the removal of the impurities, the problem of coking at the top of a hydrotreating reactorin a following high pressure hydrogenation fractionation process step can be solved, the problem of chlorine corrosion in heat exchangers and other equipment used for hydrogenation in the high pressure hydrogenation fractionation process step is also solved, and long-term operation of hydrogenation equipment in the high-pressure hydrogenation fractionation process can be ensured.

Description

Technical field [0001] The invention belongs to the technical field of energy saving and environmental protection, and particularly relates to a method for producing high-grade lubricating oil base oil by regenerating waste mineral oil in a hydrogen type. Background technique [0002] Lubricating oil is composed of 80%-90% base oil and 10%-20% additives. The main chemical composition is a mixture of various hydrocarbons and a small amount of non-hydrocarbons. However, the performance of lubricating oil is deteriorated due to physical, chemical or human factors after being used for a period of time, resulting in the formation of aldehydes, ketones, resins, asphalt colloidal substances, carbon black and organic acids, salts, water, metal chips, etc. Contaminated impurities, can no longer be used and become waste lubricating oil. In fact, the waste lubricating oil is not waste, and the used lubricating oil really deteriorates only a few percent of it. Therefore, how to effectively ...

Claims

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Application Information

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IPC IPC(8): C10M175/02C10N20/02
CPCC10M175/02C10M2203/1025C10N2020/02
Inventor 蔡德民徐冀杨开财
Owner 新疆聚力环保科技有限公司
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