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Process for producing base oil of engine oil by tail oil of petroleum fraction oil

A base oil and distillate technology, which is applied in the field of engine oil base oil preparation, can solve the problems of complex process, difficult operation, and incomplete utilization value, and achieve the effect of simple preparation method, easy operation, and low cost

Inactive Publication Date: 2014-08-13
WUXI SHANGPIN PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Petroleum distillate oil tail oil is often used as low-grade lubricating oil for mold release, wire drawing, steel rolling and other industries, and its value has not been fully utilized, and further development and utilization of it is needed
However, in the existing production process of engine oil base oil, there are often complex processes, difficult operation, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A process for producing engine oil base oil from petroleum distillate tail oil, comprising the following steps:

[0020] (1) Take the tail oil of petroleum distillate oil, add 98% concentrated sulfuric acid to pickle, carbonize the metal components in the tail oil, filter it out, and then wash it with 20% sodium hydroxide solution to neutralize the pH value of the oil body to 7~ 8;

[0021] (2) The treated raw oil enters the fractionation tower for fractionation, and the fractionation tower draws out side stream oils with different viscosities through different side streams. Control fractions by temperature: 150-225°C for the first stage, 225-280°C for the second stage, 280-350°C for the third stage;

[0022] (3) Input the side stream oils into their respective reaction kettles, add 3~5% (mass percentage) clay to each reaction kettle, absorb at 120~140℃ for 1~2h, refine and filter, and put them at a temperature of 70~ Add 0.05~0.2% (mass percentage) of antioxidant (2,...

Embodiment 2

[0028] A process for producing engine oil base oil from petroleum distillate tail oil, comprising the following steps:

[0029] (1) Take the tail oil of petroleum distillate oil, add 98% concentrated sulfuric acid to pickle, carbonize the metal components in the tail oil, filter it out, and then wash it with 20% sodium hydroxide solution to neutralize the pH value of the oil body to 7~ 8;

[0030] (2) The treated raw oil enters the fractionation tower for fractionation, and the fractionation tower draws out side stream oils with different viscosities through different side streams. Control fractions by temperature: 150-225°C for the first stage, 225-280°C for the second stage, 280-350°C for the third stage;

[0031] (3) Input the side stream oils into their respective reaction kettles, add 4% (mass percentage) clay to each reaction kettle, adsorb at 130~135°C for 1~2h, refine and filter, and put them at a temperature of 75~78°C Add 0.1% (mass percentage) antioxidant (2,6-di-...

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Abstract

The invention discloses a process for producing base oil of engine oil by tail oil of petroleum fraction oil. The process comprises the following steps of: (1) based on tail oil of petroleum fraction oil as raw material oil, first, scouring by concentrated sulfuric acid, and then neutralizing pH value of oil by alkali; (2) fractionating in a fractionation tower, and leading side line oils in different viscosities with different side lines by the fractionation tower; (3) adding 3-5% of carclazyte in each side line oil, adsorbing for 1-2 hours at 120-140 DEG C, after refining and filtering, and adding an antioxidant at 70-80 DEG C, wherein the addition is 0.05-0.2%; and (4) preparing 30# and 40# base oils of engine oil according to different viscosities of the side line oils. According to the invention, 30# and 40# base oils of engine oil are successfully prepared by the steps of scouring, neutralizing by alkali, fractionating by the fractionation tower, modifying the additive, preparing and the like based on tail oil of petroleum fraction oil as raw material oil. The method is simple, easy to operate and low in cost, and the product prepared is stable in performance and meets the demand of national standard. Meanwhile, waste is turned into wealth, so that current resources are better utilized, and the process has a better application prospect.

Description

technical field [0001] The invention relates to a method for preparing engine oil base oil, in particular to a process for producing engine oil base oil from petroleum distillate tail oil. Background technique [0002] Petroleum distillate oil tail oil is often used as lubricating oil for low-grade mold release, wire drawing, steel rolling and other industries, and its value has not been fully utilized, and further development and utilization of it is needed. However, in the existing production process of engine oil base oil, there are often complex processes and difficult operations. Contents of the invention [0003] Purpose of the invention: In view of the deficiencies in the prior art, the purpose of the invention is to provide a process for producing engine oil base oil from petroleum distillate tail oil, which has fewer steps, simple operation, low cost and meets the needs of use. [0004] Technical solution: In order to realize the above-mentioned purpose of the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M101/02
Inventor 梅仁兴李武陆国军陈新梅
Owner WUXI SHANGPIN PETROLEUM