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Preparation method of high speed engine base oil

A base oil and engine technology, applied in the field of base oil, can solve the problems such as base oil performance needs to be improved, and achieve the effects of saving non-renewable resources, high flash point, and reducing fuel gas consumption

Active Publication Date: 2019-01-11
HAINAN HANDI SUNSHINE PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of the existing base oils for high-speed engines still needs to be improved in order to be better applied in the field of high-speed engines

Method used

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  • Preparation method of high speed engine base oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of high-speed engine base oil, comprising the following steps:

[0025] S1. Preheating: Put the raw material oil into the heating furnace for heating, and heat it to 325°C;

[0026] S2. Hydroisomerization: Send the heated raw oil to the first hydrogenation reactor for hydroisomerization reaction. The reaction temperature is 300°C, the hydrogen partial pressure is 12.5MPa, and the volume space velocity of the feed liquid is 1.5h -1 , hydrogen oil volume ratio is 450:1, generates the first reaction product;

[0027] S3. Hydrofining: Send the first reaction product to the second hydrogenation reactor for hydrofining reaction. The reaction temperature is 220°C, the hydrogen partial pressure is 14MPa, and the volumetric space velocity of the feed liquid is 1.2h -1 , hydrogen oil volume ratio is 1000:1, obtains the second reaction product;

[0028] S4. High and low pressure separation: the second reaction product enters the cold high-pressure separator...

Embodiment 2

[0033] A preparation method of high-speed engine base oil, comprising the following steps:

[0034] S1. Preheating: Put the raw material oil into the heating furnace for heating, and heat it to 335°C;

[0035] S2. Hydroisomerization: Send the heated raw oil to the first hydrogenation reactor for hydroisomerization reaction. The reaction temperature is 350°C, the hydrogen partial pressure is 16MPa, and the volumetric space velocity of the feed liquid is 1.5h -1 , hydrogen oil volume ratio is 450:1, generates the first reaction product;

[0036] S3. Hydrofining: send the first reaction product to the second hydrogenation reactor for hydrofining reaction, the reaction temperature is 260°C, the hydrogen partial pressure is 16MPa, and the volumetric space velocity of the feed liquid is 1.2h -1 , hydrogen oil volume ratio is 1000:1, obtains the second reaction product;

[0037] S4. High and low pressure separation: the second reaction product enters the cold high-pressure separat...

Embodiment 3

[0042] A preparation method of high-speed engine base oil, comprising the following steps:

[0043] S1. Preheating: Put the raw material oil into the heating furnace for heating, and heat it to 330°C;

[0044] S2. Hydroisomerization: Send the heated raw oil to the first hydrogenation reactor for hydroisomerization reaction. The reaction temperature is 330°C, the hydrogen partial pressure is 14MPa, and the volumetric space velocity of the feed liquid is 1.5h -1 , hydrogen oil volume ratio is 450:1, generates the first reaction product;

[0045]S3. Hydrofining: Send the first reaction product to the second hydrogenation reactor for hydrofining reaction, the reaction temperature is 240°C, the hydrogen partial pressure is 15MPa, and the volumetric space velocity of the feed liquid is 1.2h -1 , hydrogen oil volume ratio is 1000:1, obtains the second reaction product;

[0046] S4. High and low pressure separation: the second reaction product enters the cold high-pressure separato...

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Abstract

The invention provides a preparation method of a high speed engine base oil. The preparation method comprises following steps: pre-heating, hydroisomerization, hydrofining, high and low pressure separation, normal pressure distillation, pressure reduction fractional distillation, and secondary adsorption refining with a composite adsorbent. The preparation method is capable of changing oil molecular size, structure, and arrangement mode, increasing ideal components, inhibiting catalyst caking carbon deposition, reducing generation of nonideal components such as polycyclic aromatic hydrocarbonsand asphaltene, improving oil product quality, removing impurities, improving oil product chroma, flash point, and oxidation resistance, widening oil product application range, and improving stability obviously. The obtained high speed engine base oil is high in flash point, high in viscosity index, low in pour point, high in oxidation resistance, and high transmission efficiency, and can be usedfor high speed engines preferably.

Description

technical field [0001] The invention relates to the field of base oil, in particular to a preparation method of high-speed engine base oil. Background technique [0002] At present, the world's lubricating oil base oil is changing from API Ⅰ to API Ⅱ / Ⅲ, and the production of base oil is developing towards hydrogenation technology. The lubricating oil base oil produced by hydrogenation technology has low content of sulfur, nitrogen and aromatics, high viscosity index, good thermal oxidation stability, low volatility and long oil change period. However, the performance of the existing base oils for high-speed engines still needs to be improved in order to be better applied in the field of high-speed engines. Contents of the invention [0003] In view of this, the present invention proposes a kind of preparation method of high-speed engine base oil, solves above-mentioned technical problem. [0004] Technical scheme of the present invention is realized like this: [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14
CPCC10G67/14
Inventor 于海彬朱海毅夏冰
Owner HAINAN HANDI SUNSHINE PETROCHEM
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