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Preparation method of efficient deemulsifier for naphthenic extra heavy oil and product thereof

A technology of demulsifier and extra heavy oil, which is applied in the field of preparation of extra heavy oil demulsifier. It can solve the problems of insignificant gradient change in the demulsification process, large dosage of demulsifier, and unsatisfactory dehydration speed, etc., to achieve efficient and rapid demulsification, Good demulsification effect, convenient for industrial production

Active Publication Date: 2012-10-24
克拉玛依市天明化工有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effect of using naphthenic heavy oil is poor adaptability, slow demulsification speed, low final water removal, and no obvious gradient change in the demulsification process
And the amount of demulsifier is required to be large, etc.
[0004] Chinese patent CN1810933A is a heavy oil demulsifier and its preparation method, which discloses that the heavy oil demulsifier product is suitable for demulsification of extra heavy oil in Liaohe Oilfield, but not suitable for demulsification of extra thick crude oil in Karamay area
The current use of demulsifier products is mainly to solve the problems of high demulsification temperature, large dosage and unsatisfactory dehydration speed in the existing technology

Method used

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  • Preparation method of efficient deemulsifier for naphthenic extra heavy oil and product thereof
  • Preparation method of efficient deemulsifier for naphthenic extra heavy oil and product thereof
  • Preparation method of efficient deemulsifier for naphthenic extra heavy oil and product thereof

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Effect test

Embodiment 1

[0036] Put 100kg of phenol, 550kg of tetraethylenepentamine, and 200kg of xylene into the reaction kettle, raise the temperature to 60°C under stirring, slowly add 210kg of 37% formaldehyde solution dropwise, continue heating and keep the temperature at 90-95°C, and after the reaction reaches the end point, Dehydrate at a temperature of 120°C and a vacuum of -0.08 to -0.09 MPa to obtain a phenolic amine resin. Add 50kg of phenolamine resin and 15kg of catalyst to the autoclave, compounded by potassium hydroxide and glacial acetic acid in a 1:1 weight ratio, add 750kg of propylene oxide to control the temperature to 135-155°C, add 200kg of ethylene oxide Control the temperature at 120°C to control the pressure of the kettle to 0.2-0.4 MPa, and polymerize to obtain a block polyether polymer compound. Put 700kg of synthetic block polyether, 200kg of acrylic acid, and 5kg of catalyst p-toluenesulfonic acid into the reactor, stir and raise the temperature at 130-145°C to reflux for...

Embodiment 2

[0038] 150kg of bisphenol A, 650kg of triethylenetetramine, and 300kg of xylene were heated up to 65°C under stirring, and 300kg of 36.5% formaldehyde solution was slowly added dropwise, and continued heating to keep the temperature at 90-105°C. Dehydration at -0.08~-0.09MPa at a vacuum degree of ℃ to obtain phenolic amine resin. Add 70kg of phenolamine resin to the autoclave, 18.5kg of catalyst is compounded by calcium hydroxide and sodium acetate at a weight ratio of 1:1, heat up to 140°C, adjust the pressure range to 0.2-0.5MPa, and add 800kg of propylene oxide , Add 350kg of ethylene oxide at 120°C to polymerize to obtain a block polyether polymer. Add 290kg of ethylene oxide to control the temperature at 120°C. Put 900kg of synthetic block polyether, 260kg of fumaric acid, and 5kg of catalyst p-toluenesulfonic acid into the reactor, stir and raise the temperature at 140-150°C to reflux for 50-60 minutes, until the separated water no longer increases, then cool down to 60-...

Embodiment 5

[0040]Put 1500kg of bisphenol A, 600kg of tetraethylenepentamine, and 600kg of xylene into the reaction kettle, raise the temperature to 70°C under stirring, slowly add 160kg of 37% formaldehyde solution dropwise, continue heating and keep the temperature at 90-95°C, and react to the end Finally, it is dehydrated at a temperature of 120°C and a vacuum degree of -0.08~-0.09MPa to obtain a phenolic amine resin. Add 100kg of phenolamine resin and 18kg of catalyst to the autoclave and mix calcium hydroxide and glacial acetic acid in a weight ratio of 1:1, add 900kg of propylene oxide to control the temperature to 135-155°C, add 200kg of ethylene oxide to control the temperature at 120 The pressure of the kettle is controlled to be 0.2-0.4 MPa at ℃, and the block polyether macromolecular compound is obtained by polymerization. Put 800kg of synthetic block polyether, 260kg of methacrylic acid, and 5kg of catalyst p-toluenesulfonic acid into the reactor, stir and raise the temperatur...

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Abstract

The invention relates to a preparation method of an efficient deemulsifier for naphthenic extra heavy oil and a product thereof, belonging to the technical field of petroleum processing. The efficient deemulsifier is prepared by polymerizing alkylphenol, polyethylene polyamine and formaldehyde to obtain thermoplastic phenol-amine resin as an initiator, polymerizing the initiator with oxirane and epoxypropane to generate polyether blocked copolymer, and then esterifying the polyether blocked copolymer with acrylic acid and other unsaturated acids to generate a modified polyether product by grafting olefine acid. The product prepared by the method has the characteristics of quick dehydration and low dosage. The efficient deemulsifier of the invention is suitable for dehydrating the naphthenic extra heavy oil of Karamay oil fields, meeting the requirements of proper temperature, quick dehydration, high dehydration rate, clear water color, and tidy oil-water interface, and has high efficiency demulsification and dehydration performance.

Description

technical field [0001] The invention relates to a preparation method and product of an extra heavy oil demulsifier, belonging to the technical field of petroleum processing. Background technique [0002] During the extraction of crude oil, due to the contact between crude oil and water and the natural emulsifier in crude oil, crude oil and water form a stable emulsion. Seriously emulsifies crude oil. In order to meet the requirements of crude oil export, it is necessary to break the emulsion of crude oil to separate crude oil from water. With the promotion of tertiary oil recovery technology, the extensive use of surfactant flooding, polymer flooding and other flooding technologies have had a great impact on crude oil treatment, changing the state of conventional crude oil production fluid, not only the water content of crude oil emulsion increased , and the stability is enhanced, especially the production of heavy oil and extra heavy oil increases and the demulsification ...

Claims

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Application Information

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IPC IPC(8): C08F290/06C08G65/332C08G65/28C08G14/073C10G33/04
Inventor 王明宪王新龙许海涛李玉军杨利吴伟龙
Owner 克拉玛依市天明化工有限责任公司
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