Method for refining waste lubricating oil and device thereof

A waste lubricating oil and equipment technology, applied in the field of waste lubricating oil re-refining, can solve the problems of high energy consumption for lubricating oil regeneration, cracking of lubricating oil, high distillation temperature, etc., and achieve the effects of reducing energy consumption, reducing pollution and improving quality

Active Publication Date: 2008-01-16
北京百慧生化制药有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Even the most modern re-refining process in the world has drawbacks: the distillation process included in the re-refining process has the problems of high distillation temperature and easy cracking of lubricating oil, and at the same time, high energy consumption in lubricating oil regeneration , the current situation of high cost also makes it difficult for ordinary manufacturers to bear

Method used

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  • Method for refining waste lubricating oil and device thereof
  • Method for refining waste lubricating oil and device thereof
  • Method for refining waste lubricating oil and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: Waste diesel engine lubricating oil is refined again with the method of the present invention.

[0065] Put the black ink-like waste diesel engine lubricating oil into the impurity removal container with a glass pipe below for simple dehydration and impurity removal. Weigh 100Kg of waste diesel engine lubricating oil after de-impurity, join in the vacuum film-attached volatilization still shown in Figure 3 a and Figure 3 b of the volatilization rectification tower as shown in Figure 1 of the present invention, seal still mouth, pump Vacuum to 5-50Pa, start the driving device of the main shaft 1, and make the rotary vane 2 rotate at a speed of 90 rpm. Raise the temperature of the kettle to 170°C-220°C. The volatilized gas that produces lubricating oil flows to the tower section 7. The number of trays of the column packing is 18, and after the mass transfer and exchange of the packing, the volatile gas flows to the top condenser to condense. The temperatu...

Embodiment 2

[0069] Embodiment 2: Regeneration of waste vacuum pump oil.

[0070] Vacuum pump oil is also a kind of lubricating oil, and it is one of the special lubricating oils.

[0071] The following is an example of SV-6 waste mechanical vacuum pump oil regeneration:

[0072] The waste SV-0-6 waste mechanical vacuum pump oil is dehydrated and de-impured in the same way as in Example 1. Weigh 100Kg and put it into the vacuum film-attached volatilization kettle shown in Figure 4a and Figure 4b of the tower shown in Figure 1, evacuate to 10-50Pa, start the driving device of the main shaft 1, and make the cage 3 rotate at a speed of 60 rpm. Raise the temperature of the kettle to 200°C-265°C. The volatilized gas that produces lubricating oil flows to the tower section 7. The number of trays of the column packing is 2, and after the mass transfer and exchange on the packing, the volatile gas flows to the top of the tower and is condensed by the top condenser. The temperature at the top ...

Embodiment 3

[0076] Embodiment 3: Refining of waste gasoline engine lubricating oil again

[0077] The jet black waste gasoline engine lubricating oil is dehydrated and removed with the same pretreatment method as in Example 1. Weigh 100kg of the waste gasoline engine oil after de-impurity, join in the tower still of the volatilization rectification tower as shown in Figure 1 of the present invention, seal the mouth of the still, evacuate to 50-95Pa, start the driving device of main shaft 1, Make rotary vane 2 rotate, and the rotating speed is 130 revs / min. Raise the temperature of the kettle to 170-200°C. The volatile steam that produces lubricating oil flows to tower section 7. The number of trays of the column packing is 16, and after the mass transfer and exchange of the packing, the volatile gas flows to the top condenser to condense. The temperature at the top of the tower is 70-110°C. The condensed fraction was partly refluxed (reflux ratio 0.9:1) and partly withdrawn. Produce ...

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Abstract

The invention discloses a method of refining disused lube. The method adopts low temperature adherent-film volatilizing rectification to regenerate disused lube into high quality lube. As the method adopted low temperature volatilizing.gasification to substitute boiling evaporation gasification in the general rectification, thereby the method can reduce energy consumption and pollution, and can prevent lube cracking and improve doffing impurity effect to ensure the regenerating effect. The invention also provides equipment used in the method which includes a rotating tablet adherent-film volatilization device without heat source provided in the vaporizing kettle. And the simple structure of the volatilization device makes the operation of refining high grade lube very easy.

Description

technical field [0001] The present invention relates to a method for re-refining waste lubricating oil, and also relates to the equipment used in the above-mentioned re-refining method. Background technique [0002] The energy on the earth is limited, but the consumption of energy is increasing infinitely. Therefore, saving energy has already been mentioned on the agenda. [0003] The total output of lubricating oil in the world is 40 million tons. In 2003, China's lubricating oil consumption was about 4 million tons, making it the second largest lubricating oil consumer in the world. Lubricating oil is mainly composed of base oil, and base oil is mainly made of petroleum, and only a few selected crude oils in petroleum can produce lubricating oil. Therefore, lubricating oil is a large and expensive user of petroleum. It is very important to make rational use of this part of precious energy resources. [0004] After such a large amount of lubricating oil is used, a large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M175/00C10G7/06
Inventor 刘荣逵刘荣迕刘哲刘华刘晶
Owner 北京百慧生化制药有限责任公司
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