Integrated membrane processing technology for purifying and regenerating spent lubrication oil

A waste lubricating oil and membrane treatment technology, applied in the direction of lubricating compositions, etc., can solve the problems of complex process, long process, high energy consumption, etc., and achieve the effect of simple process, improved efficiency, and improved membrane flux

Active Publication Date: 2014-06-18
湖北中硕环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above regeneration methods generally include a distillation process, that is, the traditional distillation separation method is used to extract light base oil fractions. Distillation is characterized by complex processes, long processes and high energy consumption.

Method used

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  • Integrated membrane processing technology for purifying and regenerating spent lubrication oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, a membrane treatment integrated process for purifying and regenerating waste lubricating oil specifically includes the following steps:

[0039] (1) put 5m 3 The waste lubricating oil of / h processing capacity is heated and naturally settled, and the temperature is raised to 40°C, and the settling time is about 24 hours (removal of sediment, that is, mechanical removal of impurities);

[0040] (2) Use propane in the solvent extraction tower to carry out solvent extraction treatment on the waste lubricating oil after natural sedimentation. The process parameters of solvent extraction are: the solvent-oil ratio is 3:1, the temperature is 40°C, and the pressure is about 4MPa. Solvent extraction mixture, oil residue and water are obtained, and the oil residue is dehydrated and blended with asphalt to obtain asphalt blending material, which is then developed as road asphalt;

[0041] (3) Separate the extraction mixture from the previous step in t...

Embodiment 2

[0049] In this embodiment, a membrane treatment integration process for purifying and regenerating waste lubricating oil is roughly the same as in Embodiment 1, except that:

[0050] (1) put 5m 3 The waste lubricating oil of the / h treatment capacity is heated and naturally settled, and the temperature is raised to 60°C, and the settling time is about 12 hours;

[0051] (2) The process parameters of solvent extraction are: the solvent-oil ratio is 5:1, the temperature is 60°C, and the pressure is about 4MPa;

[0052] (3) During the oil separation process, the temperature for distilling the organic solvent is 120°C and the pressure is 2.0Mpa;

[0053] (4) Heating the waste lubricating oil obtained after oil separation, and the temperature after heating is 110°C;

[0054] (5) The main parameters of the metal filter are controlled as follows: oil inlet pressure 0.5MPa, waste lubricating oil temperature 110°C, oil inlet flow 4m 3 / h;

[0055] (6) The main parameters of the met...

Embodiment 3

[0059] In this embodiment, a membrane treatment integration process for purifying and regenerating waste lubricating oil is roughly the same as in Embodiment 1, except that:

[0060] (1) put 5m 3 The waste lubricating oil of the / h treatment capacity is heated and naturally settled, and the temperature is raised to 80°C, and the settling time is about 4 hours;

[0061] (2) The process parameters of solvent extraction are: the solvent-oil ratio is 7:1, the temperature is 80°C, and the pressure is about 4MPa;

[0062] (3) During the oil separation process, the temperature for distilling the organic solvent is 150°C and the pressure is 2.0Mpa;

[0063] (4) Heating the waste lubricating oil obtained after oil separation, and the temperature after heating is 130°C;

[0064] (5) The main parameters of the metal filter are controlled as follows: oil inlet pressure 0.3MPa, waste lubricating oil temperature 130°C, oil inlet flow 4m 3 / h;

[0065] (6) The main parameters of the meta...

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Abstract

The invention belongs to the domain of the technical field of petrochemical engineering and environment protection, and particularly relates to a membrane processing technology for purifying and regenerating spent lubrication oil. The technology comprises the following steps of (1) natural settlement treatment; (2) extraction treatment by adopting a polar organic solvent; (3) oiling agent separation; (4) heating and warming; (5) filtering treatment of a metal filter; (6) filtering treatment of a metal film; (7) clay adsorption and edulcoration treatment; (8) filtering carclazyte by frame filtering; (9) adding an additive to allocate, so as to obtain the regenerated lubrication oil product. By utilizing the technology, the purifying and regenerating quality performance of the spent lubrication oil is equal to that of the regenerated lubrication oil of a new lubrication oil product. Thus, the technology is wide in application range on the spent lubrication oil, simple in flow, and reliable in technique, has actual popularization and application value, and can generate obvious social, economic and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry and environmental protection, and specifically relates to a process for regenerating waste lubricating oil. Background technique [0002] Lubricating oil is the lubricant of modern industry and is widely used in industrial production. Countries with higher industrialization usually consume more lubricating oil. At present, China, as the largest emerging economy in the world, is accelerating the process of industrialization in an all-round way, and the amount of lubricating oil it consumes is increasing day by day, which leads to the generation of a large amount of waste lubricating oil. If proper methods are not used to treat or regenerate these waste lubricating oils, it will inevitably cause serious harm to the ecological environment and cause huge waste of energy. [0003] my country has carried out a lot of research on waste lubricating oil treatment and regeneration, and has d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M175/00
Inventor 谢雄鲍建国
Owner 湖北中硕环保有限公司
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