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Method for preparing poly alpha-olefin drag reduction agent suspension

A suspension and drag reducing agent technology, applied in mechanical equipment, gas/liquid distribution and storage, piping systems, etc., can solve the problems of reduced product stability, poor high temperature resistance, poor fluidity and injection performance, etc. Achieve the effect of fast dissolution rate, stable properties and long storage period

Active Publication Date: 2009-09-30
PIPECHINA SOUTH CHINA CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned technologies have a common deficiency, that is, there are defects such as poor high temperature resistance of the product, greatly reduced product stability in an environment exceeding 60°C, and poor fluidity and injection performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1. 5 grams of EBS are emulsified in 50 grams of isopropanol in the device, add EBS, isopropanol, 2 grams of Span-80 and 2 grams of Tween-60 from the top of the container, and after fully stirring for 10 minutes, heat to At 45°C, the viscosity of the EBS solution increases, and an EBS emulsion is obtained. Its form is a milky white liquid. As the emulsification process proceeds, the solution gradually becomes thicker from thinner, and the solution turns into a suspoemulsion, and the stability is greatly increased; stir 30 grams of poly-α-olefin particles that have been milled evenly, and add 11 grams of water gave a milky milky white liquid with a polyalphaolefin particle content of about 30%.

Embodiment 2

[0030] Embodiment 2. 10 grams of stearamide are emulsified in 50 grams of butanol in the device, add stearamide, butanol, 4 grams of Span-60 and 1 gram of Tween-80 from the top of the container, after fully stirring for 10 minutes, Heated to 55°C to obtain an emulsion. Its manifestation is a milky white liquid. Add 25 grams of polyalphaolefin particles that have been milled, stir and disperse them in the emulsion, add 10 grams of ethylene glycol methyl ether to obtain a milky milky white liquid, and the content of polyalphaolefin particles is about 25%.

Embodiment 3

[0031] Example 3. In the device, 15 grams of oleic acid amide was emulsified in 45 grams of ethanol solvent, and oleic acid amide, hexanol, 3 grams of Span-80 and 2 grams of Tween-60 were added from the top of the container, and after fully stirring for 10 minutes, Heat to 55°C for emulsification, add 20 grams of ground polyalphaolefin particles, then add 15 grams of dipropylene glycol methyl ether, stir and disperse in the emulsion, polyalphaolefin becomes very fine particles and disperses in the emulsion , not agglomerated into agglomerates, the content of polyalphaolefin particles is about 20%.

[0032] The products of above-mentioned three examples, through probation, the stability of product is better than the suspension that forms with other methods, and the suspension that this method forms is stable at least 24 months without stratification, also does not have agglomeration phenomenon; High drag reduction rate, low transportation cost and low preparation cost.

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Abstract

The invention relates to the preparation of organic macromolecule compounds and the technical field of pipeline systems, in particular to a method for preparing a poly alpha-olefin drag reduction agent suspension. A solvent comprises 15-45 percent of poly alpha olefin particles, 5-15 percent of long carbon chain amide, 50-60 percent of solvent, 1-5 percent of surface active agent, 0.1-2 percent of thickening agent, and 10-20 percent of suspending agent and stabilizing agent according to the proportion when the total weight of the solvent is 100, and long carbon chain amide powder particles are fully contacted in the solvent containing at least one surface active agent and emulsified at a certain temperature, and the alpha-olefin drag reduction agent suspension is obtained by adding ground poly alpha-olefin particles with super high molecular weight and at least one of a surface active agent, a suspending agent, a stabilizing agent and a dispersing agent into the emulsified solvent. The suspension prepared by the method has long storage cycle, high content of poly alpha-olefin particles, large drag reduction rate, and low transportation and preparation costs.

Description

technical field [0001] The invention relates to a method for preparing polyalpha-olefin drag reducer suspension. The invention relates to the technical field of preparation of organic macromolecular compounds and pipeline system. Background technique [0002] It is well known that when hydrocarbon fluids flow in pipelines and pipelines, frictional energy loss will be caused. Adding polyalphaolefins with ultra-high molecular weight to hydrocarbon fluids can interact with turbulent fluids to reduce their frictional resistance and reduce energy loss. For a given flow rate, the pressure drop can be made smaller, or for a given pressure drop, the flow rate can be increased to achieve the purpose of increasing transmission and reducing costs. Historically, these polyalphaolefin drag reducers have existed in a variety of forms, including slurries and finely dispersed free-flowing fluids. However, these drag reducers are easy to agglomerate due to the viscosity of the polyalphaol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/05C08L23/00C08K5/20F17D1/17
Inventor 李春漫刘兵徐海红鲍旭晨李国平
Owner PIPECHINA SOUTH CHINA CO
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