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Method for preparing functional oil drag reducer by waste 5a molecular sieve for dehydration of olefin raw material

A molecular sieve and drag reducing agent technology, applied in chemical instruments and methods, mechanical equipment, drilling compositions, etc., can solve the problems of insufficient suspension stability, small acting force and insufficient adhesion of slurry drag reducing agent, Achieve excellent interface bonding properties, improve rigidity, and reduce dosage

Active Publication Date: 2020-06-19
SHENGLI COLLEGE CHINA UNIV OF PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the post-processing technology, it is necessary to crush the polyalphaolefin solid at the glass transition temperature, and add anti-adhesive release agents such as calcium silicate, magnesium silicate, talcum powder, and calcium carbonate, but these release agents are not compatible with polymer particles. The force on the surface is small and the adhesion is not enough, which may easily cause insufficient suspension stability of the slurry drag reducer

Method used

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  • Method for preparing functional oil drag reducer by waste 5a molecular sieve for dehydration of olefin raw material
  • Method for preparing functional oil drag reducer by waste 5a molecular sieve for dehydration of olefin raw material

Examples

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Embodiment 1

[0026] Embodiment 1: The method for preparing functional oil drag reducer by reuse of waste 5A molecular sieve for dehydration of olefin raw materials mentioned in the present invention is as follows:

[0027] Dry and roast 500g of waste 5A molecules used for dehydration of olefin raw materials in the air atmosphere at 500°C for 5h, then transfer to a ball mill for grinding, and take powder below 200 mesh; weigh 100g of processed molecular sieve powder, add γ-mercaptopropyl 50 g of trimethoxysilane, and 35 g of α-olefin monomer were added, and the temperature was controlled at 20° C., stirred evenly, and set aside.

[0028] Frozen and vitrified 5000g, 5cm square block polyalphaolefin and coarsely crushed it (-130~-120℃); weighed 1000g coarse powdered polyalphaolefin and put it into a plastic extruder (system temperature -20~0 ℃), adding 20g of waste 5A molecular sieve powder modified by γ-mercaptopropyltrimethoxysilane, mixed and extruded to obtain a composite material of wast...

Embodiment 2

[0030] Embodiment 2: The method for preparing functional oil drag reducer by reuse of waste 5A molecular sieve for olefin raw material dehydration mentioned in the present invention is as follows:

[0031] Dry and roast 500g of waste 5A molecules used for dehydration of olefin raw materials in the air atmosphere at 500°C for 5h, then transfer to a ball mill for grinding, and take powder below 200 mesh; weigh 100g of processed molecular sieve powder, add γ-mercaptopropyl 100 g of trimethoxysilane was added, and 18 g of α-olefin monomer was added, the temperature was controlled at 30° C., stirred evenly, and set aside.

[0032]Frozen and vitrified 5000g, 5cm square block polyalphaolefin and coarsely crushed it (-130~-120℃); weighed 1000g coarse powdered polyalphaolefin and put it into a plastic extruder (system temperature -20~0 ℃), adding 10g of waste 5A molecular sieve powder modified by γ-mercaptopropyltrimethoxysilane, mixed and extruded to obtain a composite material of was...

Embodiment 3

[0034] Embodiment 3: The method of reusing waste 5A molecular sieves for the dehydration of olefin raw materials mentioned in the present invention to prepare functional oil drag reducers is as follows:

[0035] Dry and roast 500g of waste 5A molecules used for dehydration of olefin raw materials in the air atmosphere at 500°C for 5h, then transfer to a ball mill for grinding, and take powder below 200 mesh; weigh 100g of processed molecular sieve powder, add γ-mercaptopropyl 75g of trimethoxysilane was added, and 25g of α-olefin monomer was added, the temperature was controlled at 20°C, stirred evenly, and set aside.

[0036] Frozen and vitrified 5000g, 5cm square block polyalphaolefin and coarsely crushed it (-130~-120℃); weighed 1000g coarse powdered polyalphaolefin and put it into a plastic extruder (system temperature -20~0 ℃), adding 15g of waste 5A molecular sieve powder modified by γ-mercaptopropyltrimethoxysilane, mixed and extruded to obtain a composite material of w...

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Abstract

The invention relates to a method for preparing a functional oil drag reducer achieved though using a waste 5A molecular sieve for dehydration of an olefin raw material. According to the technical scheme of the method, waste 5A molecules for dehydration of the olefin raw material are dried and roasted in an air atmosphere at 500 DEG C, then transferred to a ball mill for grinding, and powder is taken; the treated molecular sieve powder is weighed, a coupling agent is added, alpha olefin monomers are added, the temperature is controlled to be 20 DEG C, and a mixture is stirred uniformly for standby; blocky polyalphaolefin is subjected to freeze vitrification and then is coarsely crushed; and the coarsely-crushed polyalphaolefin is weighed to be added into a plastic extruder, the waste 5A molecular sieve powder modified by the coupling agent is added, and mixing and extruding are carried out to obtain a composite material for realizing the waste 5A molecular sieve and the polyalphaolefin. The method has the beneficial effects that the components of the method are adopted, and the synergistic effect between the waste 5A molecular sieve and the polyolefin can be promoted through the proportion optimization, so that the application performance of the drag reducer is improved, the discharge of solid waste is reduced, and the method has economic and social effects.

Description

technical field [0001] The invention relates to a technology for adding additives to reduce drag and increase transportation in the oil pipeline transportation process, in particular to a method for preparing a functional oil drag reducer by using waste 5A molecular sieves for dehydration of olefin raw materials. Background technique [0002] The main raw material for the production of polyalphaolefin drag reducer is α-olefin mixture with a certain carbon number. These α-olefin mixture raw materials are catalyzed by a catalyst, and the polyalphaolefin solid with the required molecular weight and a certain molecular weight distribution is generated by bulk polymerization reaction, and then Slurry drag reducer products are formed through crushing, suspension and other treatment processes. Among them, the α-olefin raw material needs to undergo dehydration, purification and purification processes to remove impurities, so that the content of impurities harmful to the catalyst wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D1/16F17D5/00B02C21/00B02C17/10C09K8/584
CPCB02C17/10B02C21/00C09K8/584C09K2208/28F17D1/16F17D5/00
Inventor 李雷代晓东刘飞王学武夏志增张瑞超高亮
Owner SHENGLI COLLEGE CHINA UNIV OF PETROLEUM