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Dewaxing production equipment

A production equipment and dewaxing technology, applied in the direction of petroleum wax recovery, etc., can solve the problems of high investment and operating costs, and achieve the effect of preventing equipment accidents, high safety and good crystallization effect.

Inactive Publication Date: 2014-03-19
DALIAN LONSIN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing dewaxing unit has high investment and operating costs, and is an expensive petroleum refining process

Method used

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  • Dewaxing production equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The dewaxing production equipment includes a raw material tank 1 , a first crystallization tank 2 , a second crystallization tank 4 and a filter 6 which are sequentially connected by pipelines. The first crystallization tank 2 is provided with a first exhaust pipe 3 , and the second crystallization tank 4 is provided with a second exhaust pipe 5 . The filter 6 is covered with adsorbent with a thickness of 300mm. The adsorbent is 4A molecular sieve. The pore diameter of the pipeline of the dewaxing production equipment is Ф18cm. The filter 6 is provided with a backwash pipe, and the backwash pipe is connected with a backwash pump. The aperture of the backwash pipe is Ф15mm.

Embodiment 2

[0021] The dewaxing production equipment includes a raw material tank 1 , a first crystallization tank 2 , a second crystallization tank 4 and a filter 6 which are sequentially connected by pipelines. The first crystallization tank 2 is provided with a first exhaust pipe 3 , and the second crystallization tank 4 is provided with a second exhaust pipe 5 . The filter 6 is covered with adsorbent with a thickness of 200mm. The adsorbent is 4A molecular sieve. The pore diameter of the pipeline of the dewaxing production equipment is Ф10cm. The filter 6 is provided with a backwash pipe, and the backwash pipe is connected with a backwash pump. The aperture of the backwash pipe is Ф12mm.

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Abstract

The invention provides dewaxing production equipment. The equipment comprises a raw material tank (1), a first crystallization tank (2), a second crystallization tank (4) and a filter (6) which are sequentially connected by a pipeline, wherein a first exhaustion pipe (3) is arranged on the first crystallization tank (2); a second exhaustion pipe (5) is arranged on the first crystallization tank (4). According to the dewaxing production equipment, through the arrangement of the first exhaustion pipe and the second exhaustion pipe, the internal pressure of the crystallization tanks can be adjusted so as to effectively prevent the occurrence of accidents of the equipment; by adopting the scheme of combining an adsorbent and backwashing, the blockage of the filter can be effectively prevented, and long-term operation of the equipment is facilitated; moreover, by adopting the two-section type crystallization process, the crystallization efficiency is further improved, and the crystallization effect is good.

Description

technical field [0001] The invention relates to the technical field of dewaxing production, in particular to dewaxing production equipment. Background technique [0002] The lubricating oil obtained by distillation of crude oil contains wax after furfural extraction and refining. Because the freezing point of wax is high, it must be removed, and the boiling point of wax is very close to that of lubricating oil fraction. It cannot be separated by distillation, but through gradual When the temperature is lowered, the wax will solidify and crystallize, and then filter to separate the oil and wax. The existing dewaxing unit has high investment and operating costs, and is an expensive petroleum refining process. Therefore, research and development personnel are committed to finding suitable solvents, developing new crystallization equipment, and improving filtration equipment to improve the technical level of dewaxing. Contents of the invention [0003] The present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G73/02
Inventor 刘新涛姜维喜陈剑英卞福香穆道旭
Owner DALIAN LONSIN NEW MATERIALS
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