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Viscosity reducer for low-temperature eutectic thickened oil, preparation method and application thereof

A heavy oil viscosity reducer, low temperature eutectic technology, applied in the field of heavy oil viscosity reduction, to achieve the effects of low raw material price, increase the fluidity of heavy oil, environmental friendliness and no toxicity

Inactive Publication Date: 2019-01-01
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in essence, the viscosity reducer belongs to the pour point depressant type and has no effect on heavy oil with low wax content

Method used

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  • Viscosity reducer for low-temperature eutectic thickened oil, preparation method and application thereof
  • Viscosity reducer for low-temperature eutectic thickened oil, preparation method and application thereof
  • Viscosity reducer for low-temperature eutectic thickened oil, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Choline chloride (analytical pure) and 3-phenylpropionic acid (analytical pure) were purchased from Sinopharm Chemical Reagent Co., Ltd. A low-temperature eutectic thick oil viscosity reducer, composed of choline chloride and 3-phenylpropionic acid at a molar ratio of 1:2, stirred and heated in an oil bath at 80-100°C for 1-3 hours until the reaction mixture turns into a transparent liquid .

[0018] Infrared spectrum picture as figure 1 Shown at 3685cm -1 The absorption peak at is the characteristic peak of a series of intermolecular hydrogen bonds formed after the mixing and melting of choline chloride and 3-phenylpropionic acid, among which 3000cm -1 The nearby strong absorption peak is the result of C-H stretching vibration of aromatic ring, methylene and methyl; 1700cm -1 It is the stretching vibration peak of C=O in 3-phenylpropionic acid; 1450cm -1 It is the stretching vibration peak of benzene ring C=C; 1075cm -1 C-N stretching vibration peak.

[0019] The...

Embodiment 2

[0024] Select 19 g of the thick oil in Example 1 and add it to the beaker. The viscosity of the thick oil is 6000 mPa·s at 50 ° C. After adding 1 g of DES and mixing the thick oil evenly, use the Brookfield DV-III to measure its viscosity at 75 ° C. The viscosity is 1400mPa·s, and the viscosity reduction rate is 76.7%.

Embodiment 3

[0026] Select 19 g of the thick oil in Example 1 and add it to a beaker, add 1 g of DES and mix it evenly with the thick oil and let it stand for 3 days. Measure its viscosity at 25 °C with Brookfield DV-III to be 6300 mPa·s, and the viscosity reduction rate was 75.8%.

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Abstract

The invention relates to the field of viscosity reduction of thickened oil and specifically relates to a viscosity reducer for low-temperature eutectic thickened oils, a preparation method and application thereof. The viscosity reducer for low-temperature eutectic thickened oil in the invention is prepared according to the step of stirring and heating choline chloride and 3-phenylpropionic acid for 1-3h in oil bath at 80-100 DEG C till the reaction mixture is transparent liquid. Compared with common surfactant viscosity reducers, polymer viscosity reducers and oil-soluble viscosity reducers inother markets, the viscosity reducer for low-temperature eutectic thickened oils has the advantages of low raw material cost, simple synthesis operation, environmental protection, no toxicity, obvious effect in viscosity reduction of thickened oil and excellent viscosity reduction property under high temperature. The viscosity reducer for low-temperature eutectic thickened oil has a potential market value.

Description

technical field [0001] The invention relates to the field of viscosity reduction of heavy oil, in particular to a low-temperature eutectic heavy oil viscosity reducer and an application of the heavy oil viscosity reducer to heavy oil with high colloidal asphaltene content. Background technique [0002] Petroleum is one of the most widely used natural resources by humans. It is a heterogeneous mixture of various organic compounds with large differences in molecular weight. Petroleum is an indispensable and important resource in today's world. It is used in transportation, industrial manufacturing and all aspects of daily life. The petrochemical industry is an important part of a country's industry. In 2016, global oil exploration reserves increased by 15 billion barrels, reaching 1.7 trillion barrels. From the perspective of reserves distribution, OPEC accounts for 71.6% of the world's oil reserves, while non-OPEC countries only account for 28.4%. The regional differences in...

Claims

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Application Information

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IPC IPC(8): C07C215/40C07C213/08C07C57/30C07C51/41C09K8/58F17D1/16
CPCC07C51/412C07C57/30C07C213/08C07C215/40C09K8/58F17D1/16
Inventor 贾寒冷旭黄攀
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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