A kind of high-efficiency drag reducer and its application method

A drag reducer, high-efficiency technology, applied in mechanical equipment, pipeline systems, gas/liquid distribution and storage, etc., can solve the problems of molecular chain fracture shear degradation, drag reducer loss of application performance, etc., to reduce turbulent flow resistance, Promote shear resistance and increase pipeline throughput

Active Publication Date: 2021-12-31
哈尔滨茂楠科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drag reducing polymer is prone to molecular chain breakage and shear degradation during application, and this shear degradation property is permanent and irreversible, so the drag reducer loses its application performance

Method used

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  • A kind of high-efficiency drag reducer and its application method
  • A kind of high-efficiency drag reducer and its application method

Examples

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preparation example Construction

[0049] In one embodiment, the preparation method of the modified wood flour includes the following steps: sequentially undergoing plasma treatment and silane coupling agent treatment to prepare the modified wood flour.

[0050] In a preferred embodiment, the preparation method of the modified wood powder comprises the following steps: first dissolving the wood powder in an ethanol solution containing 4wt% silane coupling agent after plasma treatment, at 20- Stand at 30°C for 10-20min, then evaporate ethanol at 80-90°C, and dry for 12-24h.

[0051] The wood flour is a natural organic wood polymer material, which has the characteristics of renewable, low carbon, energy saving, and environmental protection. Due to its rigidity and flexibility, it has the characteristics of some rubber materials. Its surface is rich in hydroxyl groups, making it somewhat hydrophilic.

[0052] In a preferred embodiment, the mass ratio of the wood flour to the silane coupling agent is 1:0.12.

[...

Embodiment 1

[0076] Example 1 provides a high-efficiency drag reducer, including A component and B component; the preparation raw material of the A component includes polyquaternium-11; the B component is an α-olefin copolymer; the The raw materials for the preparation of component B include long-chain alkyl methacrylate, acrylic acid, initiator, emulsifier, modified wood flour, and compatibilizer; the mass ratio of component A to component B is 1:1 .

[0077] The CAS number of the polyquaternium-11 is 53633-54-8.

[0078] The weight ratio of the long-chain alkyl methacrylate, acrylic acid, initiator, emulsifier, modified wood flour and compatibilizer is 30:1:0.3:4:6.9:1.35.

[0079] The long-chain alkyl methacrylate is octadecyl methacrylate.

[0080] The acrylic acid is 2,3-dihydroxypropyl acrylic acid.

[0081] The initiator is a mixture of potassium persulfate and sodium sulfite.

[0082] The molar ratio of potassium persulfate to sodium sulfite is 2:3.

[0083] The emulsifier is ...

Embodiment 2

[0097] Example 2 is basically the same as Example 1, the only difference is: a high-efficiency drag reducer, including A component and B component; the preparation raw materials of the A component include polyquaternium-11; the B group Divided into α-olefin copolymer; the preparation raw materials of the B component include long-chain alkyl methacrylate, acrylic acid, initiator, emulsifier, modified wood powder, compatibilizer; the A component and B The mass ratio of the components is 1:0.8.

[0098] The weight ratio of the long-chain alkyl methacrylate, acrylic acid, initiator, emulsifier, modified wood flour and compatibilizer is 25:1:0.2:2:5.75:1.13.

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Abstract

The invention relates to the technical field of drag reducers, in particular to a high-efficiency drag reducer and its application method. A high-efficiency drag reducer, including A component and B component; the preparation raw material of the A component includes polyquaternium-11; the B component is an α-olefin copolymer; the B component The raw materials for preparation include long-chain alkyl methacrylate, acrylic acid, initiator, and emulsifier; the mass ratio of the A component to the B component is 1: (0.8-1.2). The high-efficiency drag reducer of the invention has strong shear resistance, which helps to reduce the turbulent flow resistance of oil products, increase the flow velocity, and improve the pipeline delivery volume.

Description

technical field [0001] The invention belongs to the technical field of drag reducers, in particular, the invention relates to a high-efficiency drag reducer and its application method. Background technique [0002] Chemicals used to reduce the resistance of fluid flow are called drag reducers. It is mainly divided into two categories: water-soluble and oil-soluble. There are two types of oil-soluble drag reducers that have attracted much attention: one is surfactant compounds, and the other is highly flexible linear polymers with ultra-high molecular weight, which also have drag reduction effects, but these two types of drag reducers Usage, dosage and advantages and disadvantages are quite different. Surfactant drag reducers have good shear resistance, but are not economical. At the same time, they are added at a high concentration, which is easy to pollute oil products. Polymer drag reducer is usually used in a small amount and has a good effect of reducing drag and incr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D1/17C08F289/00C08F220/18C08F220/04
CPCF17D1/17C08F289/00C08F220/04
Inventor 韩旭东孙亚楠
Owner 哈尔滨茂楠科技有限公司
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