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CN101712786A - Reaction type crude oil flow modifier containing carboxylic acid organic polymer - Google Patents

Reaction type crude oil flow modifier containing carboxylic acid organic polymer Download PDF

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Publication number
CN101712786A
CN101712786A CN 200810223900 CN200810223900A CN101712786A CN 101712786 A CN101712786 A CN 101712786A CN 200810223900 CN200810223900 CN 200810223900 CN 200810223900 A CN200810223900 A CN 200810223900A CN 101712786 A CN101712786 A CN 101712786A
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CN
China
Prior art keywords
carboxylic acid
crude oil
organic
reaction type
oil flow
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Pending
Application number
CN 200810223900
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Chinese (zh)
Inventor
李锦昕
尹国栋
徐诚
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China National Petroleum Corp
China Petroleum Pipeline Bureau Co Ltd
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China National Petroleum Corp
China Petroleum Pipeline Bureau Co Ltd
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Priority to CN 200810223900 priority Critical patent/CN101712786A/en
Publication of CN101712786A publication Critical patent/CN101712786A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a reaction type crude oil flow modifier containing a carboxylic acid organic polymer. Relates to the technical field of general chemical methods, preparation of organic macromolecular compounds and pipeline systems. It is composed of organic macromolecule containing carboxylic acid, surfactant and micromolecular organic matter; the proportion of each component in the total weight of 100 percent is as follows: 2 to 25 percent of organic polymer containing carboxylic acid, 5 to 30 percent of surfactant and 20 to 70 percent of micromolecular organic matter. It can react with polar groups of colloid and asphaltene in crude oil, such as alcohol, amine, carboxylic acid, etc. Therefore, the invention has obvious pour point depression and fluidity improvement on the crude oil.

Description

含有羧酸有机高分子的反应型原油流动改性剂 Reactive crude oil flow modifier containing carboxylic acid organic polymer

技术领域technical field

本发明是一种含有羧酸有机高分子的反应型原油流动改性剂。涉及一般化学方法、它们的制备(有机大分子化合物的制备)和管道系统技术领域。The invention is a reactive crude oil flow modifier containing carboxylic acid organic macromolecule. It relates to the technical fields of general chemical methods, their preparation (preparation of organic macromolecular compounds) and piping systems.

背景技术Background technique

原油降凝和降凝的原油流动改性剂(也称降凝剂)是管输原油节能降耗的一种有效的技术。现有的降凝剂虽然含有极性基团,可与原油中胶质、沥青质的极性基团形成氢键,使有一定的降凝和流动性改进。但因不能与原油中胶质、沥青质反应,所以降凝和流动性改进是有限的。Crude oil flow modifier (also known as pour point depressant) is an effective technology for pipeline transportation of crude oil to save energy and reduce consumption. Although the existing pour point depressants contain polar groups, they can form hydrogen bonds with the polar groups of colloids and asphaltenes in crude oil, so that there is a certain degree of pour point depressant and fluidity improvement. However, because it cannot react with colloids and asphaltenes in crude oil, the depreciation and fluidity improvement are limited.

发明内容Contents of the invention

本发明的目的是发明一种降凝和流动性改进更好的含有羧酸有机高分子的反应型原油流动改性剂。The purpose of the present invention is to invent a reactive crude oil flow modifier containing carboxylic acid organic macromolecule with better pour point depressing and fluidity improvement.

本发明是由含有羧酸的有机高分子、表面活性剂和小分子有机物组成。在总重量为100%中各组分的比例为:含有羧酸的有机高分子2%~25%、表面活性剂5%~30%和小分子有机物20%~70%。The invention is composed of organic macromolecule containing carboxylic acid, surfactant and small molecular organic matter. The proportion of each component in the total weight of 100% is: 2%-25% of organic macromolecule containing carboxylic acid, 5%-30% of surfactant and 20%-70% of small molecule organic matter.

其中:in:

含有羧酸的有机高分子是烯烃、丙烯酸酯、乙烯醋酸乙烯酯、苯乙烯、马来酸酐(顺丁烯二酸)、丙烯酰胺、丙烯腈等单体与丙烯酸单体进行聚合形成二元、三元或四元共聚物;上述聚合物的衍生物中的含有端基为羧酸;Organic polymers containing carboxylic acids are monomers such as olefins, acrylates, ethylene vinyl acetate, styrene, maleic anhydride (maleic acid), acrylamide, and acrylonitrile, which are polymerized with acrylic monomers to form binary, Terpolymer or tetrapolymer; derivatives of the above-mentioned polymers containing terminal groups of carboxylic acids;

表面活性剂为聚氧烷基醇醚羧酸、聚氧乙烯烷聚氧丙烯烷基苯酚醚羧酸等;The surfactant is polyoxyalkyl alcohol ether carboxylic acid, polyoxyethylene alkane polyoxypropylene alkylphenol ether carboxylic acid, etc.;

小分子有机物为烷基羧酸(油酸、硬脂酸等),亚麻油脂肪酸、烷基二酸、环烷酸等;Small molecular organic substances are alkyl carboxylic acids (oleic acid, stearic acid, etc.), linseed oil fatty acids, alkyl diacids, naphthenic acids, etc.;

有机溶剂为:烷烃如汽油、柴油、石油醚等,芳香烃如二甲苯、重芳烃、C9芳烃、C10芳烃。Organic solvents are: alkanes such as gasoline, diesel, petroleum ether, etc., aromatic hydrocarbons such as xylene, heavy aromatics, C9 aromatics, and C10 aromatics.

本发明是含有上述高分子聚合物、表面活性剂和有机小分子的单一组分或混合物,它能与原油中胶质、沥青质的极性基团如醇、胺、羧酸等进行反应。所以,本发明对原油降凝和流动性改进明显。The present invention is a single component or mixture containing the above-mentioned high molecular polymer, surfactant and small organic molecule, which can react with the polar groups of colloid and asphaltene in crude oil, such as alcohol, amine, carboxylic acid and the like. Therefore, the present invention significantly improves the pour point depressing and fluidity of crude oil.

具体实施方式Detailed ways

实施例.烯烃单体与丙烯酸单体进行聚合形成二元、三元或四元共聚物;该聚合物的衍生物中的含有端基为羧酸;合成方法为在偶氮二异丁腈引发剂的存在下进行自由基聚合,反应温度为100℃,分子量在0.5~10.0×104,其中丙烯酸含量20%;在总重量为100%中,形成的含有羧酸的有机高分子占5%;表面活性剂选聚氧烷基醇醚羧酸,占总重量的25%;小分子有机物选亚麻油脂肪酸,占总重量的25%;有机溶剂用柴油,占总重量的25%。Embodiment. Olefin monomers and acrylic acid monomers are polymerized to form binary, ternary or tetrapolymers; in the derivatives of the polymers, the end groups are carboxylic acids; the synthesis method is initiated in azobisisobutyronitrile Carry out free radical polymerization in the presence of an agent, the reaction temperature is 100°C, the molecular weight is 0.5-10.0×10 4 , and the content of acrylic acid is 20%; in the total weight of 100%, the formed organic polymer containing carboxylic acid accounts for 5% The surfactant is polyoxyalkylene alcohol ether carboxylic acid, accounting for 25% of the total weight; the small molecular organic matter is selected from linseed oil fatty acid, accounting for 25% of the total weight; the organic solvent is diesel oil, accounting for 25% of the total weight.

本例对于大庆原油,处理温度为70℃,加剂量为50ppm~100ppm,可将原油的凝点由33℃降低到14℃。对于苏丹1/2/4原油,处理温度为105℃,加剂量为50ppm~100ppm,可将原油的凝点由34℃降低到22℃。In this example, for Daqing crude oil, the treatment temperature is 70°C, and the dosage is 50ppm-100ppm, which can reduce the freezing point of crude oil from 33°C to 14°C. For Sudan 1/2/4 crude oil, the treatment temperature is 105°C, and the dosage is 50ppm-100ppm, which can lower the freezing point of crude oil from 34°C to 22°C.

应用条件:能与原油中胶质、沥青质的有醇类再常温(高于原油的凝点)或在原油的加剂处理温度下进行反应。Application conditions: It can react with the colloid and asphaltene alcohols in crude oil at room temperature (higher than the freezing point of crude oil) or at the temperature of crude oil additive treatment.

产品的形式:产品可溶于烷烃如汽油、柴油、石油醚等,或溶于芳香烃如二甲苯、重芳烃、C9芳烃、C10芳烃。Product form: The product can be dissolved in alkanes such as gasoline, diesel oil, petroleum ether, etc., or in aromatic hydrocarbons such as xylene, heavy aromatics, C9 aromatics, and C10 aromatics.

Claims (5)

1. one kind contains the carboxylic acid organic macromolecule reaction type crude oil flow modifying agent, it is characterized in that it is made up of the organic polymer that contains carboxylic acid, tensio-active agent and small organic molecule; In gross weight is that the ratio of each component in 100% is: the organic polymer 2%~25%, tensio-active agent 5%~30% and the small organic molecule 20%~70% that contain carboxylic acid.
2. the carboxylic acid organic macromolecule reaction type crude oil flow modifying agent that contains according to claim 1 is characterized in that the described organic polymer that contains carboxylic acid is that alkene, acrylate, ethylene vinyl acetate, vinylbenzene, maleic anhydride, acrylamide or acrylonitrile monemer and Acrylic Acid Monomer carry out polymerization formation binary, ternary or tetrapolymer; The end group that contains in the derivative of this polymkeric substance is a carboxylic acid.
3. the carboxylic acid organic macromolecule reaction type crude oil flow modifying agent that contains according to claim 1 is characterized in that described tensio-active agent is selected from polyoxy alkyl ethoxylated carboxylic acid, polyoxyethylene alkane or polyoxypropylene alkylbenzene phenolic ether carboxylic acid.
4. the carboxylic acid organic macromolecule reaction type crude oil flow modifying agent that contains according to claim 1 is characterized in that described small organic molecule is selected from alkyl carboxylic acid, linseed oil fatty acid, alkyl acid, naphthenic acid.
5. the carboxylic acid organic macromolecule reaction type crude oil flow modifying agent that contains according to claim 1 is characterized in that described organic solvent is selected from: the dimethylbenzene of the gasoline of alkane, diesel oil, sherwood oil or aromatic hydrocarbon, heavy aromatics, C9 aromatic hydrocarbons, C10 aromatic hydrocarbons.
CN 200810223900 2008-10-08 2008-10-08 Reaction type crude oil flow modifier containing carboxylic acid organic polymer Pending CN101712786A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104119471A (en) * 2014-07-17 2014-10-29 湖南有色冶金劳动保护研究院 Viscosity reducer applied to pipeline transportation of crude oil and preparation method thereof
CN104356296A (en) * 2014-11-13 2015-02-18 山东大学 Aminolysis polymer, and preparation method and application thereof
CN106635201A (en) * 2016-10-27 2017-05-10 深圳市广昌达石油添加剂有限公司 Wax crystal dispersing agent, diesel oil pour point depressant prepared via complex preparation of wax crystal dispersing agent, and application method of diesel oil pour point depressant
CN114716988A (en) * 2021-01-04 2022-07-08 中国石油化工股份有限公司 Preparation method and application of solid asphaltene inhibitor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104119471A (en) * 2014-07-17 2014-10-29 湖南有色冶金劳动保护研究院 Viscosity reducer applied to pipeline transportation of crude oil and preparation method thereof
CN104356296A (en) * 2014-11-13 2015-02-18 山东大学 Aminolysis polymer, and preparation method and application thereof
CN106635201A (en) * 2016-10-27 2017-05-10 深圳市广昌达石油添加剂有限公司 Wax crystal dispersing agent, diesel oil pour point depressant prepared via complex preparation of wax crystal dispersing agent, and application method of diesel oil pour point depressant
CN114716988A (en) * 2021-01-04 2022-07-08 中国石油化工股份有限公司 Preparation method and application of solid asphaltene inhibitor

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