Method for improving residual oil component distribution by using hydrogen donor under action of ultrasonic waves

A hydrogen-donating agent and ultrasonic technology, applied in the chemical industry, can solve the problems of high colloid and asphaltene content, achieve the effect of reducing component distribution, reducing content and improving quality

Inactive Publication Date: 2015-03-25
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems existing in the above-mentioned prior art, and provides a method for improving the distribution of residual oil components by a hydrogen donor agent under the action of ultrasonic waves, which solves the problem of high colloid and asphaltene content in residual oil components in the prior art

Method used

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  • Method for improving residual oil component distribution by using hydrogen donor under action of ultrasonic waves
  • Method for improving residual oil component distribution by using hydrogen donor under action of ultrasonic waves
  • Method for improving residual oil component distribution by using hydrogen donor under action of ultrasonic waves

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Effect test

Embodiment 1

[0016] Step 1: Slowly heat 50 g of the residual oil to a fluid state, then add tetralin therein, stir to make it fully mixed, and the mass ratio of tetralin to the residual oil is 20%.

[0017] Step 2: Divide the uniformly mixed oil sample into several parts, and ultrasonicate the oil sample at different temperatures for 25 minutes under the condition of ultrasonic power of 50 W.

[0018] Step 3, take 1g from each ultrasonic oil sample to separate the four components, weigh the separated four components, and compare the mass changes of the four components with those of the untreated residual oil.

[0019] The amount of mass change of each component at different temperatures using the present invention is shown in Table 1.

Embodiment 2

[0021] Step 1: Slowly heat 50 g of the residual oil to a fluid state, then add tetralin therein, stir to make it fully mixed, and the mass ratio of tetralin to the residual oil is 20%.

[0022] Step 2: Divide the homogeneously mixed oil sample into several parts, and ultrasonicate the oil sample at different temperatures for 25 minutes under the condition of ultrasonic power of 200W.

[0023] Step 3: Take 1 g from the ultrasonicated oil sample to separate the four components, weigh the separated four components, and compare the mass changes of the four components with those of the untreated residual oil.

[0024] The amount of mass change of each component at different temperatures using the present invention is shown in Table 2.

Embodiment 3

[0026] Step 1: Slowly heat 50 g of residual oil to a fluid state, then add a straight-run diesel fraction to it, stir to make it fully mixed, and the mass ratio of the straight-run diesel fraction to the residual oil is 20%.

[0027] Step 2: Divide the mixed and uniform oil sample into several parts, and ultrasonicate the oil sample at different temperatures for 25 minutes under the condition of ultrasonic power of 50 W.

[0028] Step 3, take 1g from each ultrasonic oil sample to separate the four components, weigh the separated four components, and compare the mass changes of the four components with those of the untreated residual oil.

[0029] The amount of mass change of each component at different temperatures using the present invention is shown in Table 3.

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Abstract

The invention discloses a method for influencing content of four components of residual oil by adding a hydrogen donor under the action of ultrasonic waves. The method comprises the following steps: (1) adding the hydrogen donor in the residual oil according to a specified proportion, stirring and fully mixing; (2) putting a uniformly mixed oil sample in an ultrasonic wave generator to apply ultrasonic waves to the oil sample; (3) performing four component separation on the oil sample after being subjected to the ultrasonic wave treatment, weighting the separated four components, and comparing the masses of the separated four components with original four components of original un-treated residual oil to obtain the mass change. By utilizing the method provided by the invention, the four component distribution of the residual oil can be remarkably changed, the contents of saturated phenol and aromatics in the residual oil are increased, and the contents of colloid and asphalt are reduced. The residual oil is pretreated by the method so that the treatment difficulty of the residual oil is reduced.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a method for improving the distribution of residual oil components by a hydrogen donor under the action of ultrasonic waves, that is, changing the content of residual oil components under the simultaneous action of ultrasonic waves and hydrogen donors. Background technique [0002] With the development of the petroleum industry, the development of heavy oil, the processing and application of residual oil are becoming more and more important in the petroleum industry. Most of my country's crude oil is heavy oil, and the content of residual oil is 40% to 50% or more. In the heavy oil that has been exploited successively in recent years, the content of vacuum residue reaches more than 60%. For example, the content of vacuum residue in Shanjiasi heavy oil is as high as 65.6%. Therefore, it is of great significance to study the composition and structure of residu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/28B01J19/10
CPCC10G45/28B01J19/10C10G2300/1077C10G2300/206
Inventor 戴咏川赵飞星赵德智孙东旭宋官龙丁巍
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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