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Efficient crude oil pour point depressant as well as preparation method and application thereof

A crude oil pour point depressant, high-efficiency technology, applied in chemical instruments and methods, mechanical equipment, gas/liquid distribution and storage, etc., can solve problems such as crude oil extraction and transportation difficulties, reduce crude oil freezing point, etc., and is conducive to popularization and use , Improve low temperature fluidity, good wax crystal structure effect

Active Publication Date: 2021-08-31
DESHI ENERGY TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-efficiency crude oil pour point depressant and its preparation method and application. The high-efficiency crude oil pour point depressant can significantly reduce the freezing point of crude oil, effectively improve the fluidity of crude oil, and solve the problem of difficult crude oil exploitation and transportation

Method used

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  • Efficient crude oil pour point depressant as well as preparation method and application thereof
  • Efficient crude oil pour point depressant as well as preparation method and application thereof

Examples

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preparation example Construction

[0037] 1.2, and efficient method for preparing the crude oil pour point comprising the steps of:

[0038] (1) The modified ethylene - vinyl acetate copolymer, dimethylaminoethyl acrylate and divinylbenzene according to (7-8) :( 1-2) :( 2-3) was dissolved in a mass ratio of heavy aromatics solvent, reaction initiator is added to the first component;

[0039] (2) the n-butanol and a Lewis acid catalyst added to the reaction flask, heated with stirring to 100 ~ 110 ℃, epichlorohydrin was added to give the second component, the mass ratio of n-butanol and epichlorohydrin It is 1: (12 to 13);

[0040] (3) the first component, the second component and the third component in accordance with (9 - 9.5) :( 1 to 1.5) :( 2.5 ~ 2) mass ratio of solvent dissolved in a heavy aromatic hydrocarbon, to give the efficient crude oil pour point depressant.

[0041] Wherein step (1) the initiator is selected from benzoyl peroxide, lauroyl peroxide, t-butyl peroxide, benzoyl peroxide, methyl ethyl keton...

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Abstract

The invention discloses an efficient crude oil pour point depressant as well as a preparation method and application thereof, and belongs to the technical field of oilfield chemicals. The efficient crude oil pour point depressant comprises a first component, a second component and a third component; the first component is a terpolymer of a modified ethylene-vinyl acetate copolymer, dimethylaminoethyl acrylate and p-divinylbenzene, and the molecular weight of the first component is 3000-4000; the second component is a polyether compound of n-butyl alcohol and epoxy chloropropane, and the molecular weight of the second component is 1000-1500; and the third component is naphthalene or a naphthalene derivative. The first component, the second component and the third component in the efficient crude oil pour point depressant have a synergistic effect, so that the condensation point of crude oil can be remarkably reduced, and the fluidity of the crude oil is effectively improved.

Description

Technical field [0001] The present application relates to an efficient method of Crude Oil and its preparation and application, belong to the technical field of oil field chemicals. Background technique [0002] Crude oil is an important petroleum resources, which component contains a large amount of material resin and asphaltene, paraffin easy to crystallize. At present, most oil fields have entered the stage three sections, the freezing point of the new exploitation of crude oil, wax content, viscosity and other parameters higher and higher. During transport of crude oil, when the temperature is lowered to transport the crude oil to the crude oil when the wax starts to crystallize, if the temperature is further reduced, an increasing number of crude crystals, resulting in loss of fluidity oil solidifying on the wall, which to the exploitation and transportation of crude oil has brought great difficulties. Depressant by nucleation, adsorption, and the eutectic effect solubilizat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/588C09K8/58C08F255/02C08F220/34C08F212/36F17D1/17
CPCC08F255/023C09K8/58C09K8/588F17D1/17C08F220/34C08F212/36
Inventor 崔仕章修宗明王黎明高瑞美吕志凤牟国毅徐佳慧
Owner DESHI ENERGY TECH GRP CO LTD
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