Process for producing lubricant base oil through hydrotreatment of heavy-duty bitumen distillate oil

A lubricating oil base oil and hydrotreating technology, which is applied in the field of lubricating oil base oil, can solve problems such as non-compliance with various indicators of lubricating oil base oil, poor quality of lubricating oil base oil, complex components of heavy traffic asphalt distillate oil, etc. , to achieve the effect of ensuring the overall rationality, reducing energy consumption, and reasonable route design

Active Publication Date: 2018-12-14
山东齐创石化工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the complexity of heavy traffic asphalt distillate oil components, the quality of lubricating base oil obtained through traditional hydrotreating process is poor, and the indicators of lubricating base oil that do not meet the standards

Method used

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  • Process for producing lubricant base oil through hydrotreatment of heavy-duty bitumen distillate oil
  • Process for producing lubricant base oil through hydrotreatment of heavy-duty bitumen distillate oil
  • Process for producing lubricant base oil through hydrotreatment of heavy-duty bitumen distillate oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The process of hydrotreating heavy traffic asphalt distillate oil to produce lubricating oil base oil includes the following two parts:

[0039] (1) Hydrogenation reaction part:

[0040] ① Send the heavy traffic asphalt distillate oil from the device into the device, exchange heat with the lubricating base oil to raise the temperature, enter the filter to remove particles larger than 25 microns, and then mix with the circulating oil from the fractionation part to enter the raw material protected by inert gas The oil buffer tank forms raw oil;

[0041] ②The raw oil in the raw oil buffer tank exchanges heat with the reaction effluent from the hydrotreating reactor, mixes with mixed hydrogen, enters the hydrofinishing reactor for hydrofining reaction, and then enters the hydrotreating reactor for hydrogenation For hydrogen treatment reaction, quenching hydrogen injection facilities are installed between the beds of the reactor and between the reactors;

[0042] ③ After t...

Embodiment 2

[0062] The sour water stripping process is as follows:

[0063] ①Acidic water enters the raw water degassing tank, and the degassed light oil gas is sent to the low-pressure gas pipe network; the degassed acidic water enters the degreaser to settle and remove oil, and the degassed light dirty oil flows intermittently to the dirty oil tank, and is pressurized Sent to the waste oil tank area of ​​the factory; the acidic water after oil removal enters the raw water tank to form raw water, pressurized by the raw water feed pump, exchanges heat with the purified water at the bottom of the main stripper to 100°C, and enters the main stripper upper part;

[0064] ② After heat exchange between the purified water at the bottom of the main stripper and the raw water, it is pressurized by the purified water booster pump, cooled to 35°C by the purified water cooler, and sent to the raw water degassing tank for reuse;

[0065] ③ After the acid gas at the top of the main stripping tower is...

Embodiment 3

[0074] The sour water stripping process is as follows:

[0075] ①Acidic water enters the raw water degassing tank, and the degassed light oil gas is sent to the low-pressure gas pipe network; the degassed acidic water enters the degreaser to settle and remove oil, and the degassed light dirty oil flows intermittently to the dirty oil tank, and is pressurized Sent to the waste oil tank area of ​​the factory; the acidic water after oil removal enters the raw water tank to form raw water, pressurized by the raw water feed pump, exchanges heat with the purified water at the bottom of the main stripper to 105°C, and enters the main stripper upper part;

[0076] ② After heat exchange between the purified water at the bottom of the main stripper and the raw water, it is pressurized by the purified water booster pump, cooled to 30°C by the purified water cooler, and sent to the raw water degassing tank for reuse;

[0077] ③ After the acid gas at the top of the main stripping tower is...

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Abstract

The invention specifically relates to a process for producing lubricant base oil through hydrotreatment of heavy-duty bitumen distillate oil, belonging to the technical field of lubricant base oil. According to the invention, heavy-duty bitumen distillate oil is used as a main raw material, cycle oil is used as an auxiliary raw material, and the raw materials are subjected to hydrotreatment, so the recovery effect of the heavy-duty bitumen distillate oil is improved; in particular, cold low-pressure separated oil and hot low-pressure separated oil in process enter a main stripping tower for stripping, so the cleanliness of an oil product is improved; moreover, two-stage hydrogenation reactions are performed, and different catalysts are adopted for a concerted reaction, so hydrogenation catalysis efficiency is improved; and an acidic water treatment apparatus is employed so as to reduce the discharge amount of acidic water. The process is reasonable in route design and ensures the integral rationality, advancement and long-term safe and stable operation of apparatus design. The process of the invention can produce standard lubricant base oil.

Description

technical field [0001] The invention relates to the technical field of lubricating oil base oils, in particular to a process for producing lubricating oil base oils by hydrogenating heavy traffic asphalt distillates. Background technique [0002] In recent years, due to the development of automobile engine technology, automobile engine oils are developing towards high-quality multi-grade oils with low viscosity and low volatility. The requirements for economy, volatility and shear stability are getting higher and higher. Therefore, high performance The demand for lubricating oil will also increase. Although the initial construction investment of lubricating oil hydrotreating will be slightly higher than that of the traditional refining process, if the process advantages of hydrotreating and the increasingly tight supply of high-quality crude oil suitable for lubricating oil are taken into consideration, it can be expected that hydrotreating will The development of processin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/00C10M177/00
CPCC10G67/00C10G2400/10C10M177/00
Inventor 邢晓鹏
Owner 山东齐创石化工程有限公司
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