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Crude oil pour point depressant and preparation method and application thereof

A technology of crude oil point depressant and point depressant, which is applied in chemical instruments and methods, mechanical equipment, gas/liquid distribution and storage, etc. The effect can not be satisfied and other problems, to achieve the effect of convenient large-scale production, good pour point depressing effect, and the freezing point of crude oil

Active Publication Date: 2018-08-28
DONGYING ZHENGZE ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Aiming at the deficiencies of the prior art, the present invention provides a liquid crude oil point depressant with good pour point depressing effect, low cost and less dosage, its preparation method and application, and solves the problem that the existing crude oil point depressant needs to be heated or added with soluble liquid before use. Dissolution, during the transportation of crude oil at normal temperature or low temperature, there are many components of the pour point depressant, the use range is narrow, and the modification effect of the pour point depressant cannot meet the requirements of the pipeline to achieve normal temperature transportation throughout the year.

Method used

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  • Crude oil pour point depressant and preparation method and application thereof
  • Crude oil pour point depressant and preparation method and application thereof
  • Crude oil pour point depressant and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Weigh 300g of undecyl acrylate, 300g of phenyl acrylate, and 100g of vinyl acetate into a reactor, add 500mL of DMF to dissolve, slowly add 0.8g of BPO and 20mL of petroleum ether mixture dropwise with a dropping funnel, and heat at 85°C for 2 hours , after the reaction is completed, the product is obtained, that is, undecyl acrylate-phenyl acrylate-vinyl acetate copolymer solution, that is, the finished product of pour point depressant 1.

[0054] The proton nuclear magnetic resonance spectrum and the carbon nuclear magnetic resonance spectrum of the undecyl acrylate-phenyl acrylate-vinyl acetate copolymer solution that the present embodiment obtains are as follows: figure 1 , figure 2 shown.

[0055] Depression performance test:

[0056] Take 4 dry and clean test tubes and label them, add 10mL petroleum to the blank group. Take 0.005g of undecyl acrylate-phenyl acrylate-vinyl acetate copolymer solution in the remaining 3 tubes respectively, and add 10mL of crude o...

Embodiment 2

[0060] Weigh 300g of tridecyl acrylate, 300g of phenyl acrylate, and 100g of vinyl acetate into the reactor, add 500mL of DMF to dissolve, slowly add 0.8g of BPO and 20mL of petroleum ether mixture dropwise with a dropping funnel, and heat at 85°C for 2 hours After the reaction is completed, the product is obtained, namely tridecyl acrylate-phenyl acrylate-vinyl acetate copolymer solution, which is the finished product of pour point depressant 2.

[0061] The proton nuclear magnetic resonance spectrum and the carbon nuclear magnetic resonance spectrum of the tridecyl acrylate-phenyl acrylate-vinyl acetate copolymer solution that the present embodiment obtains are as follows: image 3 , Figure 4 shown.

[0062] Depression performance test:

[0063] Take 4 dry and clean test tubes and label them, add 10mL petroleum to the blank group. Take 0.005g of undecyl acrylate-phenyl acrylate-vinyl acetate copolymer solution in the remaining 3 tubes respectively, and add 10mL of crude ...

Embodiment 3

[0067] Weigh 300g of pentadecyl acrylate, 300g of phenyl acrylate, and 100g of vinyl acetate into the reactor, add 500mL of DMF to dissolve, slowly add 0.8g of BPO and 20mL of petroleum ether mixture dropwise with a dropping funnel, and heat at 85°C for 2 hours After the reaction is completed, the product is obtained, namely pentadecyl acrylate-phenyl acrylate-vinyl acetate copolymer solution, which is the finished product of pour point depressant 3.

[0068] The proton nuclear magnetic resonance spectrum and the carbon nuclear magnetic resonance spectrum of the pentadecyl acrylate-phenyl acrylate-vinyl acetate copolymer solution that the present embodiment obtains are as follows: Figure 5 , Figure 6 shown.

[0069] Depression performance test:

[0070] Take 4 dry and clean test tubes and label them, add 10mL petroleum to the blank group. Take 0.005g of pentadecyl acrylate-phenyl acrylate-vinyl acetate copolymer solution in the remaining 3 tubes respectively, and add 10mL...

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Abstract

The invention relates to a crude oil pour point depressant and a preparation method and application thereof. The crude oil pour point depressant is obtained by polymerizing a monomer A, a monomer B and a monomer C, wherein the monomer A is undecanyl acrylate, tridecyl acrylate, pentadecyl acrylate, heptadecyl acrylate, nonadecyl acrylate, henicosanyl acrylate, tricosanyl acrylate and pentacosyl acrylate; the monomer B is acrylic acid phenyl ester, acrylic acid p-dodecylbenzene ester, acrylic acid naphthyl ester and acrylic acid anthrol ester; the monomer C is vinyl acetate. The pour point depressant is applied to the pipeline transportation of Africa Gabon crude oil, and the condensation point of the Africa Gabon crude oil is reduced to 11.5 DEG C from 37 DEG C; compared with crude oil transported by heating in the same term, the crude oil treated by the pour point depressant has the advantages that the oil consumption is reduced by 58%, the power consumption is reduced by 10%, and enormous economic and social benefits are obtained.

Description

technical field [0001] The invention relates to a liquid crude oil pour point depressant, a preparation method and application thereof, and belongs to the technical field of crude oil pour point depressants. Background technique [0002] Crude oil is a complex hydrocarbon mixture containing various components such as paraffin, colloid, and asphaltenes. In particular, 80% of my country's crude oil is high-waxy crude oil, and the wax content is as high as 15% to 37%. When the temperature drops to the critical oil point, the wax crystal content increases to a certain amount to form three-dimensional network crystals and lose fluidity. my country mainly adopts heating transportation, adding drag reducing agent, dilution, water suspension and other transportation methods, but these methods consume a lot of energy, pollute the environment, have high equipment investment and management costs, allow small changes in the range of transportation volume, and pipeline shutdowns There is...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/12C08F218/08C09K8/524F17D1/16
CPCC08F220/12C08F220/18C08F220/1818C09K8/524F17D1/16C08F218/08
Inventor 杨冰川陈茜文杨美田杨沛儿
Owner DONGYING ZHENGZE ENVIRONMENTAL TECH CO LTD
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