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: 2013-09-11
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 us

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1

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

[0039] (1) Put 5m 3 / h of waste lubricating oil treated by heating and natural sedimentation, the temperature is raised to 40 ℃, and the sedimentation time is about 24 hours (removal of sediment, that is, mechanical impurity removal);

[0040] (2) In the solvent extraction tower, propane is used for solvent extraction of waste lubricating oil after natural sedimentation. The process parameters of solvent extraction are: the ratio of agent to oil is 3:1, the temperature is 40°C, and the pressure is about 4MPa. Obtain a solvent extraction mixture, oil residue and water, the oil residue is dehydrated and then subjected to asphalt blending to obtain an asphalt blend, which is then developed as road asphalt;

[0041] (3) The extraction mixture of the previous step is separated in the oil separat...

Example Embodiment

[0048] Example 2

[0049] The membrane treatment integrated process for purification and regeneration of waste lubricating oil in this embodiment is roughly the same as that in Embodiment 1, except that:

[0050] (1) Put 5m 3 / h of waste lubricating oil is heated and naturally settled, and the temperature is raised to 60℃, and the settlement time is about 12 hours;

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

[0052] (3) In the process of oil separation, the temperature at which the organic solvent is evaporated is 120°C and the pressure is 2.0Mpa;

[0053] (4) The waste lubricating oil obtained after the oil agent is separated is heated to a temperature of 110°C;

[0054] (5) The main parameters of the metal filter are: the inlet pressure is 0.5MPa, the waste lubricating oil temperature is 110℃, and the inlet oil flow rate is 4m. 3 / h;

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

Example Embodiment

[0058] Example 3

[0059] The membrane treatment integrated process for purification and regeneration of waste lubricating oil in this embodiment is roughly the same as that in Embodiment 1, except that:

[0060] (1) Put 5m 3 / h of waste lubricating oil is heated and naturally settled, and the temperature is raised to 80℃, and the settlement time is about 4 hours;

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

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

[0063] (4) The waste lubricating oil obtained after the oil agent is separated is heated to a temperature of 130°C;

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

[0065] (6) The m...

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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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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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