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Regeneration method of waste lubricating oil

A technology of waste lubricating oil and lubricating oil, which is applied in the direction of lubricating composition, petroleum industry, and hydrocarbon oil treatment, etc. It can solve the problems of complex composition, many types of waste lubricating oil raw materials, and affecting the normal operation of the process, and achieves simple and large-scale Social benefits and economic benefits, and the effect of increasing yield

Inactive Publication Date: 2012-06-20
北京耀锋技术开发中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the practice of waste lubricating oil regeneration treatment, it is found that the collected waste lubricating oil raw materials have many types and complex compositions, and some low-quality raw materials even affect the normal operation of subsequent processes

Method used

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  • Regeneration method of waste lubricating oil
  • Regeneration method of waste lubricating oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The properties of waste lubricating oil used in this embodiment are shown in Table 1.

[0021] 10kg of waste lubricating oil is processed through the following steps:

[0022] (1) Pretreatment

[0023] Put the waste lubricating oil in a mixer with stirring, stir at 60°C for 20 minutes, then move it into a settling tank for 10 hours to remove moisture and mechanical impurities;

[0024] (2) Rectification:

[0025] Filter the waste oil pretreated in step (1) and enter the rectification tower under operating conditions: the temperature is 150-170°C, and the vacuum degree is 240-260Pa;

[0026] (3) Short path distillation

[0027] The waste oil treated in step (2) enters short-path distillation, and undergoes the following three stages of distillation in turn: the operating conditions of the first-stage short-path distillation are temperature 170-200°C, vacuum degree 30-50Pa, and light lubricating oil base stock is fractionally distilled; then The material enters the se...

Embodiment 2

[0037] The used lubricating oil properties of this embodiment are shown in Table 3.

[0038] 10kg of waste lubricating oil is processed through the following steps:

[0039] (1) Preprocessing:

[0040] The waste lubricating oil is placed in a mixer with agitation, and 0.5-1.0% of the weight of the waste lubricating oil is added in mixed ethyleneamine with a nitrogen content of 40-41%. Stir at 90°C for 40 minutes, then move into a settling tank for 10 hours to remove moisture and impurities.

[0041] (2) Distillation:

[0042] The waste oil pretreated in step (1) is filtered and then enters the rectification tower. The operating conditions are: the temperature is 150-170°C, and the vacuum degree is 250-260Pa.

[0043] (3) Short path distillation:

[0044] Put the waste oil treated in step (2) into short-path distillation, and then undergo the following three stages of distillation: the operating conditions of the first-stage short-path distillation are temperature 170-200°C...

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Abstract

The invention provides a regeneration method of waste lubricating oil which at least comprises the steps of waste oil pretreatment, short path distillation and hydrofining. Compared with the prior art, the invention has the advantages that the technology is simple, the operation is flexible, no pollution is caused, all the quality indexes of produced lube base oil meet the standard requirements of universal base oil of lubricating oil, and the produced lube base oil can be used for preparing various lubricating oil products. Therefore, the regeneration method of the waste lubricating oil has a wider application range and is more environment-friendly.

Description

technical field [0001] The invention relates to a regeneration method of waste lubricating oil. Background technique [0002] With the in-depth research and development of waste lubricating oil regeneration technology, the processing capacity of industrialized waste lubricating oil regeneration equipment is also increasing, so the requirements for environmental protection are also getting higher and higher. "Waste Lubricating Oil Regeneration Technology" (Patent No.: ZL200610086926.2) The white clay refining method adopted in the patent has low equipment investment, simple operation, and good product quality. It is the preferred refining method for small and medium-sized waste lubricating oil regeneration devices. When the processing capacity of the waste lubricating oil recycling device increases, the amount of waste clay slag produced by clay refining also increases, which brings certain difficulties to the harmless treatment of waste clay slag. Hydrofining is a clean pro...

Claims

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Application Information

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IPC IPC(8): C10M175/00C10G67/14
Inventor 车时英于志远孙淑华于志锋
Owner 北京耀锋技术开发中心
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