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Methacrylate pour point depressant and preparation method thereof

A technology of polyhexadecyl methacrylate and polystearyl methacrylate, which is used in mechanical equipment, pipeline systems, gas/liquid distribution and storage, etc., can solve the problem of limited pour point depressurization effect of crude oil, complex crude oil components, etc. problems, to achieve the effect of inhibiting adverse effects, reducing crude oil viscosity, and facilitating operation

Active Publication Date: 2021-04-06
DESHI ENERGY TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex composition of crude oil, the effect of a single type of pour point depressant on crude oil is limited.

Method used

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  • Methacrylate pour point depressant and preparation method thereof
  • Methacrylate pour point depressant and preparation method thereof
  • Methacrylate pour point depressant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method of polymethacrylate type pour point depressant comprises the following steps:

[0029] Weighing the methacrylic mixed ester and polyhexadecyl methacrylate-acrylamide / silicon dioxide nanocomposite material, mixing, and ultrasonically dispersing to obtain the methacrylic pour point depressant;

[0030] Wherein, the time for ultrasonic dispersion is 15-20 minutes, and the temperature for ultrasonic dispersion is 20-35°C.

[0031] (1) The preparation method of polymethacrylate mixed ester

[0032] The polymethacrylate mixed ester is selected from at least two kinds of polylauryl methacrylate, polytetradecyl methacrylate, polyhexadecyl methacrylate, and polyoctadecyl methacrylate.

[0033] Among them, polylauryl methacrylate, polytetradecyl methacrylate, polyhexadecyl methacrylate, and polyoctadecyl methacrylate are all purchased through commercial channels.

[0034] (2) Preparation of polyhexadecyl methacrylate-acrylamide / silica nanocomposite

[00...

Embodiment 2

[0043] characterize

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Abstract

The invention discloses a methacrylate pour point depressant and a preparation method thereof, and belongs to the technical field of oilfield chemicals. The methacrylate pour point depressant comprises a polymethylacrylic acid mixed ester and a hexadecyl methacrylate-acrylamide / silicon dioxide nanocomposite. The methacrylate pour point depressant can be rapidly dispersed in crude oil, does not need too much preheating time when added into the crude oil, can significantly reduce the condensation point of the crude oil, and enhances the fluidity of the crude oil.

Description

technical field [0001] The application relates to a methacrylate-based pour point depressant and a preparation method thereof, belonging to the technical field of oilfield chemicals. Background technique [0002] Pour point depressant is a kind of commonly used oil additives, which can lower the freezing point or cold filter point of oil, so that the oil can still maintain the fluidity of the oil when it is stored, transported, used or used as a vehicle fuel at low temperature , so it is also called low temperature flow improver or wax crystal modifier. [0003] China's oilfields produce high-wax crude oil. The common characteristics of high-wax crude oil are high wax content and high freezing point, which cause great difficulties in the extraction and transportation of crude oil. At present, the transportation of crude oil at home and abroad is generally handled by heating methods, microbial methods and chemical additives. Adding chemical pour point depressants to crude o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/16
CPCF17D1/16
Inventor 修宗明崔仕章王黎明宋新旺高瑞美侯云福吕志凤
Owner DESHI ENERGY TECH GRP CO LTD
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