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Method and device for producing base oil of naphthene base refrigerating machine oil

A technology for refrigerating machine oil and naphthenic production, which is applied in the petroleum industry, processing hydrocarbon oil, and hydrocarbon oil treatment products, etc., can solve the problems of harsh processing conditions, affecting the economy of upgrading and utilization, and difficult naphthenic oil production.

Active Publication Date: 2019-02-12
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although coal tar, a by-product of coal coking, can be used as a supplementary raw material for naphthenic refrigerating machine oil, the scale of the coking industry is relatively low, and the concentration of the industry is not high, so it is difficult to form a large-scale production of naphthenic oil. The content is high, the process route of producing refrigeration oil base oil from coal tar is long, and the processing conditions are harsh, which affects the economical efficiency of its quality improvement and utilization
[0010] Therefore, it is necessary to provide a method and device for producing naphthenic refrigerating machine oil base oil, to solve the problem of shortage of raw materials for producing refrigerating machine oil base oil in the prior art

Method used

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  • Method and device for producing base oil of naphthene base refrigerating machine oil

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Effect test

Embodiment 1

[0062] Shenhua coal direct liquefied oil is used as raw material, and the coal direct liquefied oil is prepared by mixing medium-temperature oil and high-temperature oil at a ratio of 1:6. The specific properties of medium-temperature oil and high-temperature oil are shown in Table 2. The hydrogenation protection catalyst RGC-1 and the hydrofinishing catalyst RNC-2 are filled in the hydrofinishing reaction zone, and the filling volume ratio of the hydrogenation protection catalyst RGC-1 and the hydrofinishing catalyst RNC-2 is 1:4. The hydrogenation upgrading reaction zone is filled with hydrogenation upgrading catalyst RCC-1. The hydrogenation supplementary refining reaction zone is filled with hydrogenation supplementary refining catalyst RLF-2. The process conditions and product properties of the hydrogenation process are shown in Table 3 and Table 4.

Embodiment 2

[0064] Using the same raw material as in Example 1, the difference is that the direct coal liquefied oil raw material only undergoes hydrofining and hydroupgrading processes, and does not undergo supplementary hydrofinishing treatment. The process conditions and product properties of the hydrogenation process are shown in Table 3. ,Table 4.

Embodiment 3-4

[0066] Using the same raw materials and process as in Example 1, but the hydrofining process conditions are different from those in Example 1. The process conditions and product properties of the hydrogenation process are shown in Table 3 and Table 4.

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Abstract

The invention provides a method and device for producing base oil of naphthene base refrigerating machine oil. The method for producing the base oil of the naphthene base refrigerating machine oil comprises the steps that S1, direct coal liquefied oil is subjected to fractional distillation, and a first fraction at the temperature of 330-360 DEG C is obtained; S2, the first fraction is subjected to hydrofining, and a first refined product is obtained; and S3, the first refined product is subjected to hydro-upgrading, and the base oil of the naphthene base refrigerating machine oil is obtained.The coal direct liquefied oil serves as a production raw material in order to solve the problem that the product raw materials are in shortage in the prior art, the fraction at the temperature of 330-360 DEG C is obtained through fractional distillation, and the base oil of product the naphthene base refrigerating machine oil can be economically and efficiently obtained by conducting hydrofiningand hydro-upgrading on the fraction.

Description

technical field [0001] The invention relates to the field of refrigerating machine oil, in particular, the invention relates to a method and a device for producing naphthenic refrigerating machine oil base oil. Background technique [0002] Refrigeration oil is a special lubricating oil for refrigeration compression devices, and it is an important part that determines and affects the refrigeration function and effect of the refrigeration system. During the working process of the refrigeration compressor, the low temperature is obtained by decompression and evaporation of the refrigerant, and the refrigeration machine oil lubricates the working parts of the refrigeration device. Therefore, the refrigerator oil is required to have strong lubricity, low temperature fluidity, oxidation stability and high flash point. It is also required that the refrigerating machine oil and the refrigerant can be miscible, the product has excellent chemical stability, and can have the same lif...

Claims

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Application Information

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IPC IPC(8): C10G67/02
CPCC10G67/02C10G2300/30C10G2300/308C10G2300/70C10G2400/10C10G2400/30
Inventor 单贤根舒歌平章序文杨葛灵王洪学曹雪萍
Owner CHNA ENERGY INVESTMENT CORP LTD
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