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Preparation method, product and application of particulate poly-alpha-olefin

A granular and olefinic technology, applied in mechanical equipment, gas/liquid distribution and storage, pipeline systems, etc., can solve the problems of time and energy consumption, complicated process, cumbersome operation, etc., and achieve short reaction time, simple process, good The effect of mobility

Active Publication Date: 2013-01-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is complicated, the operation is cumbersome, time-consuming and energy-consuming

Method used

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  • Preparation method, product and application of particulate poly-alpha-olefin
  • Preparation method, product and application of particulate poly-alpha-olefin
  • Preparation method, product and application of particulate poly-alpha-olefin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 polyalpha--olefin synthesis

[0042] A 250mL three-necked reaction flask with a mechanical stirring device was fully replaced with nitrogen, and 10mL methyl silicone oil (produced by Beijing Sihuan Antong Chemical Products Co., Ltd., viscosity 300 centipoise, specific gravity 0.95g / cm 3 ), 30mL of 1-octene (ACROS Reagent Company, purity greater than 95%, molecular sieve dehydration treatment) and 1.25mL of triisobutylaluminum (ACROS Reagent Company, 1.1mol / L toluene solution), stirring and cooling, when the temperature drops to - 5°C, stir and add 24.3mg of catalyst C1, keep the temperature at -5°C for 8h, then seal it and place it in the refrigerator (5°C) to continue the reaction for 18h, and obtain granular polyα-olefin / Silicone oil slurry. The polyα-olefin concentration is 62.3% by weight, and the measured polyα-olefin intrinsic viscosity is 9.0 dL / g.

Embodiment 2

[0043] Embodiment 2 polyalpha--olefin synthesis

[0044] Same as Example 1, except that 20 mL of methyl silicone oil (Beijing Dingye Industry and Trade Co., Ltd., dynamic viscosity of 10 centipoise), 10 mL of 1-octene, 0.8 mL of triisobutylaluminum toluene solution and 33.4 mg of catalyst C2 were added , first at -15°C for 2 hours, then at 20°C for 24 hours to obtain a granular poly-α-olefin / silicone oil slurry that is well dispersed in methyl silicone oil. The polyα-olefin concentration is 27.2% by weight, and the measured polyα-olefin intrinsic viscosity is 8.0 dL / g.

Embodiment 3

[0045] Example 3 polyalpha--olefin synthesis

[0046] Same as Example 1, except that 20 mL of 1-octene, 0.8 mL of triisobutylaluminum toluene solution and 32.4 mg of catalyst C3 were added. A granular polyα-olefin / silicone oil slurry well dispersed in methyl silicone oil was obtained, wherein the concentration of polyα-olefin was 54.2% by weight, and the measured intrinsic viscosity of polyα-olefin was 8.7dL / g.

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Abstract

The invention provides a preparation method of particulate poly-alpha-olefin. The method comprises: mixing at least one alpha-olefin monomer and silicone oil, and then polymerizing the alpha-olefin by contacting with at least one catalyst to generate particulate poly-alpha-olefin / silicone oil slurry. The preparation method is simple in process, short in reaction time, and easy to implement. The obtained poly-alpha-olefin / silicone oil slurry can be directly used in the field of drag reduction for oil pipeline transportation.

Description

technical field [0001] The invention relates to a method for preparing granular polyalpha-olefin, and the granular polyalpha-olefin can be used as a drag reducer for pipeline oil products. Background technique [0002] Oil-soluble polyalphaolefins are widely used as drag reducers for oil pipelines. Oil-soluble drag reducer is a polymer additive used in crude oil and refined oil pipeline transportation. This kind of polymer additive dissolved in oil can greatly reduce the frictional resistance loss along the transmission fluid under the condition of constant transmission volume. , to reduce the operating pressure of the pipeline; under the condition that the operating pressure of the pipeline remains unchanged, the throughput of the pipeline can be increased. This method does not need to increase the fixed equipment of the pipeline, and is a convenient and economical method for adjusting the pipeline delivery volume. Since the drag reducer produced by Connock Corporation of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08L23/02C08L83/04F17D1/16
Inventor 荣峻峰谢婧新周旭华
Owner CHINA PETROLEUM & CHEM CORP