Multifunctional crude oil demulsifying agent and method of producing the same

A crude oil demulsifier, multi-functional technology, applied in the direction of chemical dehydration/demulsification, etc., can solve the problems of unsatisfactory, non-corrosion inhibition performance, etc., to achieve convenient source, good demulsification performance, and excellent corrosion inhibition function Effect

Active Publication Date: 2013-01-02
EAST CHINA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main defect of the technology disclosed in the above-mentioned patents is that it does not have corrosion inhibition performance, so it cannot meet the needs of relevant parties.

Method used

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  • Multifunctional crude oil demulsifying agent and method of producing the same
  • Multifunctional crude oil demulsifying agent and method of producing the same
  • Multifunctional crude oil demulsifying agent and method of producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) React a mixture of 125.5g (1.24mol) of diisopropylamine and 100g of water with 68.3g (1.37mol) of propylene oxide to obtain diisopropylisopropanolamine. The reaction temperature is 80°C and the reaction time is 2.5 Hour;

[0045] (2) Phenylamine polyoxyethylene polyoxypropylene ether, adipic acid, diisopropylisopropanolamine of step (1), catalyst p-toluenesulfonic acid and water entrained agent toluene, in an inert atmosphere, 110 ℃ React for 3h, then distill out toluene to obtain linear polyester;

[0046] The weight consumption of phenolamine polyoxyethylene polyoxypropylene ether is 500% of diisopropylisopropanolamine;

[0047] The weight consumption of adipic acid is 160% of diisopropylisopropanolamine;

[0048] The weight consumption of p-toluenesulfonic acid is 25% of diisopropylisopropanolamine;

[0049] The weight consumption of toluene is 650% of diisopropylisopropanolamine;

[0050] (3) 20 g of the product obtained in step (2) was reacted with 1 g of b...

Embodiment 2

[0061] (1) React a mixture of 125.5g (1.24mol) of diisopropylamine and 100g of water with 68.3g (1.37mol) of propylene oxide to obtain diisopropylisopropanolamine. The reaction temperature is 80°C and the reaction time is 2.5 Hour;

[0062] (2) with octylphenol polyoxyethylene polyoxypropylene ether, adipic acid, the diisopropyl isopropanolamine of step (1), catalyzer p-toluenesulfonic acid and water entrained agent toluene, in inert atmosphere, 110 ℃ for 3 hours, then distill off the toluene to obtain linear polyester;

[0063] The weight consumption of octylphenol polyoxyethylene polyoxypropylene ether is 550% of diisopropylisopropanolamine;

[0064] The weight consumption of adipic acid is 160% of diisopropylisopropanolamine;

[0065] The weight consumption of p-toluenesulfonic acid is 25% of diisopropylisopropanolamine;

[0066] The weight consumption of toluene is 850% of diisopropylisopropanolamine;

[0067] (3) 18 g of the product obtained in step (2) was reacted wi...

Embodiment 3

[0078] (1) react a mixture of 157.0 g (1.0 mol) of decylamine and 150 g of water with 128 g (2.2 mol) of propylene oxide to obtain decyl isopropanolamine, the reaction temperature is 80° C., and the reaction time is 2 hours;

[0079] (2) Propylene glycol polyoxyethylene polyoxypropylene ether, adipic acid, decanyl isopropanolamine in step (1), catalyst p-toluenesulfonic acid, and water-entraining agent toluene are reacted at 110° C. for 3 h in an inert atmosphere, Then distill out toluene to obtain linear polyester;

[0080] The weight consumption of propylene glycol polyoxyethylene polyoxypropylene ether is 600% of decanyl isopropanolamine;

[0081] The weight consumption of adipic acid is 180% of decyl isopropanolamine;

[0082] The weight consumption of p-toluenesulfonic acid is 28% of decyl isopropanolamine;

[0083] The weight consumption of toluene is 750% of decyl isopropanolamine;

[0084] (3) 20 g of the product obtained in step (2) was reacted with 1 g of benzyl c...

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Abstract

The invention discloses a multifunctional crude oil emulsion splitter and a preparation method thereof. The multifunctional crude oil emulsion splitter not only has excellent emulsion splitting performance, but also has the function of inhibition. A method regulated by ASTM G 31-72 is adopted for carrying out test on the corrosion rate of a lacing film under various conditions; the inhibition effect can achieve more than 80 percent; the emulsion splitting and dewatering effects can achieve more than 85 percent. The materials adopted for preparing the multifunctional crude oil emulsion splitter are convenient to be obtained and easy to be composed; moreover, the multifunctional crude oil emulsion splitter has the performance of emulsion splitting and the function of inhibition; the emulsion splitting performance is excellent and the function of inhibition is good, which can meet the demand of relative industry departments. The general expression for the structure of the multifunctional crude oil emulsion splitter is as follow.

Description

technical field [0001] The invention relates to a crude oil demulsifier and a preparation method thereof. Background technique [0002] In the process of crude oil development, transportation and production, there are HCl-H 2 O, HCl-H 2 S-H 2 O system corrosion, the development of multifunctional demulsifiers with corrosion inhibition performance is an important subject in the development, transportation and production of crude oil. For petroleum processing, adding a multifunctional demulsifier in the pretreatment process can realize desalination and dehydration of crude oil, provide high-quality raw materials for subsequent devices, and at the same time reduce corrosion of equipment pipelines in the device. [0003] Chinese patent CN03134878.5 has reported a kind of crude oil demulsifier, and the technology disclosed in this patent uses organic amine as initiator, polymerizes with propylene oxide (PO), uses sodium hydroxide or potassium hydroxide as catalyst, and the rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G33/04C08G65/333
Inventor 徐心茹王增林杨敬一李振泉李少萍宋新旺曹绪龙张继超祝仰文
Owner EAST CHINA UNIV OF SCI & TECH
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