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Lubricating oil basic oil depickling agent and use method thereof

A technology of oil deacidification agent and lubricating oil, which is applied in the petroleum industry, refining hydrocarbon oil, etc., can solve the problems of lower neutralization value, high acid value, and decline in the quality of refining raw materials, so as to reduce solid waste discharge and save The effect of energy consumption

Inactive Publication Date: 2008-07-16
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a lubricating oil base oil deacidification agent for lubricating oil base oil deacidification agent for lubricating oil base oil after the denitrification of lubricating oil based Petroleum acid removal from oil, lower neutralization value

Method used

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  • Lubricating oil basic oil depickling agent and use method thereof

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Effect test

Embodiment 1

[0035] The third-line mixed base oil of Gaoqiao Petrochemical was refined by furfural, dewaxed, denitrogenated, and adsorbed by deacidifier. At 150°C, the alkali nitrogen dropped from 200ppm to 40ppm, the value of the rotary oxygen bomb increased from 110 to 230 minutes, and the neutralization value dropped from 0.093mg KOH / g to 0.045mg KOH / g.

Embodiment 2

[0037] Jingmen intermediate base minus the third-line base oil is refined by furfural, dewaxed, denitrified, and deacidified by adsorption. At 80°C, the ratio of denitrified agent to oil is 1:200, and the amount of deacidified agent (type 2) is 2%. , the adsorption temperature is 140°C, and the alkali nitrogen is reduced from 450ppm to 80ppm. The product meets the requirements of HVIS600SN.

Embodiment 3

[0039] The paraffinic residual oil in Daqing was treated by propane deasphalting, dewaxing, furfural refining, denitrification, deacidification agent adsorption, etc., at a temperature of 95°C, the ratio of agent to oil was 1:100, and the amount of deacidification agent (type 3) was 3.0%. The adsorption temperature is 130°C, and the basic nitrogen drops from 538ppm to 110ppm. The neutralization value decreased from 0.233mgKOH / g to 0.048mgKOH / g.

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Abstract

The invention relates to a lubricating oil base oil deacidification agent, which is powder solid. The invention consists of metal oxide and porous large specific surface material, which is characterized by the weight percentage and matter content: Al2O3: 20 to 50 percent; SiO2:10-30 percent; CaO: 1 to 5 percent; MgO: 1 to 2 percent; Na2O: 5 to 20 percent; K2O:0.5 to 10 percent; activated carbon: 1 to 20 percent; 95 percent of particle size is between 200 and 300 meshes, and the specific surface is 80-180m<2> / g. The oil after denitrification and the lubricating oil base oil deacidification agent is full mixed and then is filtered so as to make refined oil. Lubricating oil base oil deacidification agent content is from 0.5 percent to 5 percent of the mixture of denitrification oil and lubricating oil base oil deacidification agent. The lubricating oil base oil deacidification agent overcomes the problems that the traditional white clay technique uses too much white clay and also costs too much energy and the deacidification effect is very poor, thus reducing solid waste discharge and saving energy.

Description

technical field [0001] The invention belongs to the field of petroleum refining, and relates to a deacidification agent for lubricating base oil and a use method thereof, which can reduce the neutralization value of the base oil and improve its oxidation stability. Background technique [0002] Basic nitrides can significantly promote the oxidation of lubricating base oils. Most of the nitrogen compounds in petroleum are concentrated in the heavier components, so the content of nitrogen compounds in the lubricating oil base is high, which affects the oxidation stability of the base oil. At present, the refining of lubricating oil base oil in various oil refineries in my country generally adopts the denitrification process to remove the basic nitrogen compounds in the base oil and improve the oxidation stability of the base oil. For example, patent ZL97116286.7 proposes a supplementary refining process for denitrification clay, and patent ZL99122371.3 proposes a low-temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G25/00
Inventor 夏明桂毛满意徐文刚朱琴何精平
Owner WUHAN TEXTILE UNIV