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Production method of bright stock

A production method and bright stock technology, applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve the problems of low output of light deasphalted oil and limitation of bright stock production, etc.

Active Publication Date: 2012-10-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the production of light deasphalted oil in the existing solvent deasphalting unit is low (about 18-25% of the vacuum residue), which limits the production of bright stock

Method used

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  • Production method of bright stock
  • Production method of bright stock

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Experimental program
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example 1

[0064] according to figure 1 The process shown produces bright stock. The residue raw material is a vacuum tower bottom oil whose properties are listed in Table 1.

[0065] Residue Hydrotreating Reaction Unit Operation:

[0066] Residuum hydrogenation process is carried out according to the method disclosed in CN101210200, adopts two reactors, one reversely loads hydrogenation protecting agent and hydrodemetallization agent, and adorns hydrodesulfurization catalyst in the second reactor, three ratio (volume ratio ) is 5:45:50, and the commercial brands of hydrogenation protection agent, hydrodemetallization agent, and hydrodesulfurization agent are RG-10A, RDM-2, and RMS-1, all of which are provided by Changling, a Sinopec Catalyst Branch Company. Catalyst factory production. The reaction conditions of residual oil hydrotreating, >520°C hydrogenated residual oil column bottoms yield (based on residual oil feed), and properties are listed in Table 2.

[0067] Solvent deasph...

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Abstract

A production method of bright stock comprises the following steps of: (1) under the conditions of a residuum hydrotreatment reaction unit and a residuum hydrotreatment reaction, performing a contact reaction between hydrogen and the residuum raw material in the presence of a catalyst for residuum hydrotreatment, and separating to obtain hydrogenated residuum with its distillation range being more than 470 DEG C; (2) under the solvent deasphalting condition and in a solvent deasphalting unit, carrying out solvent refining on the hydrogenated residuum which is obtained from the step (1) with its distillation range being more than 470 DEG C, so as to obtain residuum which has undergone solvent refining; (3) in a hydrotreatment reaction unit and under the condition of hydrotreatment reaction, performing a contact reaction between the residuum which has undergone solvent refining and is obtained from the step (2) and a hydrotreatment catalyst, and separating to obtain hydrotreated oil with its distillation range being more than 470 DEG C; and (4) in a solvent de-waxing unit and under the condition of solvent de-waxing, carrying out solvent dewaxing on the hydrotreated oil which is obtained from the step (3) with its distillation range being more than 470 DEG C, so as to obtain the product oil, namely bright stock.

Description

technical field [0001] The invention relates to a method for producing bright stock. Background technique [0002] Bright oil is a type of lubricating oil base oil, often used as a blending component of internal combustion engine oil to increase the viscosity of internal combustion engine oil in high temperature environments, or as the main component of automotive gear oil and industrial gear oil. The basic indicators of bright stock include kinematic viscosity, viscosity index and pour point. Among them, kinematic viscosity is a characteristic index. The kinematic viscosity of bright oil is between 17-34 square millimeters per second at 100 ° C. It is divided into 90BS, 120BS and 150BS. Among them, the range of kinematic viscosity of 90BS bright oil is 17 -22mm2 / s, the kinematic viscosity range of 120BS bright oil is 22-28mm2 / s, the kinematic viscosity range of 150BS bright oil is 28-34mm2 / s, the higher the kinematic viscosity, the wider the application range of bright oil...

Claims

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Application Information

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IPC IPC(8): C10G67/14C10M177/00
Inventor 王鲁强郭庆洲王轶凡夏国富
Owner CHINA PETROLEUM & CHEM CORP
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