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A regeneration process for producing low-point lubricating oil base oil by the full hydrogen method of waste lubricating oil

A technology for lubricating base oil and waste lubricating oil, which can be used in hydrotreating process, petroleum industry, lubricating composition, etc. The effect of high degree and wide range of raw material adaptability

Active Publication Date: 2020-02-14
湖北润驰环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention provides an ideal waste lubricating oil regeneration process technology, which solves the problem of poor low-temperature fluidity and light stability of the regenerated lubricating oil base oil, and has the advantages of environmental protection, no pollution, good economic benefits, wide range of raw material adaptability, and high product quality. , The characteristics of long operating cycle

Method used

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  • A regeneration process for producing low-point lubricating oil base oil by the full hydrogen method of waste lubricating oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] According to the waste lubricating oil regeneration scheme mentioned above, according to the material properties of the waste lubricating oil (see Table 1 for properties), hydrogenation reaction is carried out,

[0031] The product is high-quality lubricating oil base oil (see Table 2 for product properties), and the process conditions are as follows:

[0032] The reaction pressure of protective agent reactor 6 is 10Mpa, the reaction temperature is 320°C, and the total feed volume space velocity is 2h -1 , the hydrogen / oil volume ratio is 600:1; the reaction pressure of hydrofining reactor 7 is 10Mpa, the reaction temperature is 340°C, and the total feed volume space velocity is 0.6h -1 , the hydrogen / oil volume ratio is 600:1, and the catalyst loaded in the reactor is W-Mo-Ni / γ-Al 2 o 3 ;The reaction pressure of the isomerization depreciation reactor 11 is 10Mpa, the reaction temperature is 280°C, the hydrogen-oil ratio is 400:1, and the volume space velocity is 1.0h...

Embodiment 2

[0034] According to the waste lubricating oil regeneration scheme mentioned above, according to the material properties of the waste lubricating oil (see Table 1 for properties), hydrogenation reaction is carried out,

[0035] The product is high-quality lubricating oil base oil (see Table 2 for product properties), and the process conditions are as follows:

[0036] The reaction pressure of protective agent reactor 6 is 13Mpa, the reaction temperature is 300°C, and the total feed volume space velocity is 1.5h -1 , the hydrogen / oil volume ratio is 400:1; the reaction pressure of hydrofining reactor 7 is 13Mpa, the reaction temperature is 360°C, and the total feed volume space velocity is 0.8h -1 ,

[0037] The hydrogen / oil volume ratio is 400:1, and the catalyst loaded in the reactor is Mo-Ni / γ-Al 2 o 3 ; The reaction pressure of the isomerization depreciation reactor 11 is 13Mpa, the reaction temperature is 260°C, the hydrogen-oil ratio is 500:1, and the volume space veloc...

Embodiment 3

[0039] According to the waste lubricating oil regeneration scheme mentioned above, according to the material properties of the waste lubricating oil (see Table 1 for properties), hydrogenation reaction is carried out,

[0040] The product is high-quality lubricating oil base oil (see Table 2 for product properties), and the process conditions are as follows:

[0041] The reaction pressure of protective agent reactor 6 is 17Mpa, the reaction temperature is 310°C, and the total feed volume space velocity is 2.0 h -1 , the hydrogen / oil volume ratio is 300:1; the reaction pressure of hydrofining reactor 7 is 17Mpa, the reaction temperature is 330°C, and the total feed volume space velocity is 0.9h -1 , the hydrogen / oil volume ratio is 300:1, and the catalyst loaded in the reactor is Mo-Ni / γ-Al 2 o 3 ; The reaction pressure of the isomerization depressing reactor 11 is 17Mpa, the reaction temperature is 300°C, the hydrogen-oil ratio is 300:1, and the volume space velocity is 1.3 ...

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Abstract

The invention relates to a regenerating process technology for producing high quality low-pour-point lubricant base oil by the full hydrogen method of waste lubricant oil. The process technology comprises the following steps: firstly, performing predistillation and atmospheric flashing on the waste lubricant oil to remove water and pulling out light oil, and then performing propane refining to remove the vast majority of impurities and additives in the oil; performing a hydrogenating reaction on the lubricant oil fraction without water and impurities and hydrogen under the action of a catalyst after being mixed, and performing gas liquid separation to obtain a liquid which enters a stripping tower to divide, thereby obtaining naphtha and light diesel oil from the top of the stripping tower; and feeding the pre-heated product in the bottom of the stripping tower into an isomeric pour point depression reactor and a compensating refining reactor, and separating light oil and the lubricant base oil from the reaction product through a fractioning device. The regenerating process technology provided by the invention is environment-friendly and pollution-free; the regenerating recovery of waste oil reaches up to 99% or above; the oxidizing stability and light stability of the base oil are remarkably improved; the product is good in quality and high in additional value; and therefore, the regenerating process technology has a very good market application prospect.

Description

technical field [0001] The invention relates to the field of waste lubricating oil regeneration, and belongs to an environmentally friendly, pollution-free and high-yield waste lubricating oil regeneration process technology. Background technique [0002] With the rapid development of modern industry and the increasingly prominent environmental problems, the requirements for the operating life of the mechanism are getting higher and higher, and the operating environment is also becoming more and more harsh. The requirements for service life, low or no toxicity, etc. are getting higher and higher. Although domestic refineries have accelerated their transformation and upgrading in recent years, the domestic production capacity of API II / III base oils only accounts for about 36% of the total production capacity, which is far from meeting the domestic demand for high-quality lubricants. [0003] Due to the gradual depletion of petroleum resources and the increasingly serious en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/14C10M175/00C10M175/02
CPCC10G67/14C10G2300/1007C10G2300/201C10G2300/202C10G2300/205C10G2300/206C10G2300/70C10M175/0008C10M175/0033C10M175/0041C10M175/005C10M175/02
Inventor 张先茂王国兴王栋斌王瑜王泽王骥飞瞿玖周正夏大寒陈凯
Owner 湖北润驰环保科技有限公司
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