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Oil product purification membrane filtration system and use process thereof

A filtration system and purification membrane technology, applied in filtration loop, filtration separation, membrane technology and other directions, can solve the problems of high disposal cost, low operation efficiency, poor oil quality, etc. low impact effect

Pending Publication Date: 2020-08-07
天津新启缘环境材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process needs to be heated above 100°C to evaporate water, and clay absorbs and filters impurities; this process consumes about 65 degrees of electricity per ton of oil for heating and evaporating water, and consumes about 60kg of clay per ton of oil. , the disposal cost is expensive, and the cost of processing one ton of waste oil is about 300 yuan
Traditional oil filter needs to be heated and evaporated to about 100°C to remove moisture; then the oil filter is repeatedly circulated to remove impurities. During the process, the filter element needs to be replaced frequently, the operating efficiency is low, and the quality of the filtered oil is poor.

Method used

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  • Oil product purification membrane filtration system and use process thereof
  • Oil product purification membrane filtration system and use process thereof
  • Oil product purification membrane filtration system and use process thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0044] Specific embodiment 1: An air switch factory of Tianjin State Grid: processing capacity: 3 tons; Table 1 is the performance comparison of new oil, filtrate and polluted lubricating oil.

[0045] Table 1

[0046]

[0047]

[0048] It can be seen from Table 1 that the physical and chemical properties of the samples before and after filtration are all within the normal range compared with the new oil. The cleanliness of the sample after membrane filtration is significantly improved, especially the number of small particles (intermittent size particles) that have a greater impact on the hydraulic system is significantly reduced. And it is much better than the new oil sample, which can significantly reduce the wear rate of parts. The additive content remained constant after filtration, indicating that the filtration did not affect the additive.

specific Embodiment 2

[0049] Specific example 2: a waste oil factory in Dongli District, Tianjin: equipment processing capacity: 1 ton / day; treatment oil product: waste cleaning oil, table 2 shows the comparison of feed liquid performance indicators before and after membrane filtration

[0050] Table 2

[0051]

[0052]

[0053] Table 2 shows that the oil purification membrane system is very effective in filtering waste oil. After membrane filtration, the particle size and moisture are significantly reduced, the particle size is increased to NAS6 level, and the moisture is reduced from 1100ppm to below 100ppm. figure 2 The diagram of the change of membrane flux is shown; the membrane filtration system is cleaned once a day by gas backwashing. After cleaning, the membrane flux has a good recovery effect and basically returns to the initial flux.

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Abstract

The invention belongs to the technical field of petrochemical engineering and environmental protection, and particularly relates to an oil product purification membrane filtration system and a use process thereof. The system comprises a primary sedimentation tank, a coarse filtration device, an oil product purification membrane assembly unit and an oil production tank which are sequentially communicated, the oil product purification membrane assembly unit comprises a plurality of oleophylic and hydrophobic membrane assemblies which are connected in parallel; each oleophylic and hydrophobic membrane assembly comprises an oil inlet, an oil outlet and a thick oil outlet; the oil inlets are respectively communicated with the coarse filtration device and a backwashing liquid collecting device;and the oil production tank is respectively communicated with a gas path cleaning unit, an oil path cleaning unit and the oil production tank. The technology aims at solving the problems that an existing filter element is low in filtering precision and large in pore diameter, and an oil product cannot meet the equipment use standard after one-time filtering; the membrane filtration system and process are high in filtration precision, and dehydration and impurity removal are completed at a time at normal temperature. The system is short in process, low in energy consumption, high in automationdegree, small in occupied area and easy to popularize in the industry.

Description

technical field [0001] The invention belongs to the technical fields of petrochemical industry and environmental protection, and in particular relates to an oil product purification membrane filtration system and a use process. Background technique [0002] Lubricating oil is the lubricant of modern industry and the "blood" of industrial equipment. It mainly plays the roles of lubrication, cooling, rust prevention, cleaning, sealing and buffering. During the use of lubricating oil, impurities such as moisture, dust, fibers, and metal chips will enter into the lubricating oil with the operation of the equipment and poor sealing, which will increase the pollution of the lubricating oil and affect the use effect. [0003] The annual sales volume of lubricating oil in my country is about 5 million tons, which are mainly used in industrial equipment and motor vehicles. As far as industrial equipment is using oil: traditional online oil purification devices are mostly glass fiber...

Claims

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Application Information

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IPC IPC(8): B01D36/00B01D36/04B01D61/00B01D65/02C10M175/00C10M175/06
CPCB01D36/003B01D36/04B01D61/00B01D65/02B01D2321/04B01D2321/18B01D2321/40C10M175/00C10M175/06
Inventor 戴海平尹延梅柯永文
Owner 天津新启缘环境材料科技有限公司
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