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Preparation method of super heavy oil refined oil-soluble efficient electro-desalting demulsifying agent

An electric desalting demulsifier and oil-soluble technology, which is applied in the preparation of oil refining demulsifiers and the preparation of oil-soluble high-efficiency electric desalting demulsifiers for ultra-heavy oil refining, can solve the problems of long desalination and dehydration treatment time, long diffusion time, etc. Achieve the effect of realizing large-scale production application, increasing dehydration speed and reducing material loss

Active Publication Date: 2014-06-18
克拉玛依市天明化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The usual water-soluble electric desalination demulsifier is injected into the treatment system by back-mixing water, and stays in the discontinuous phase water of the emulsion in the early stage, and enters the oil-water interface of the salty sewage through the continuous phase crude oil in the later stage to implement demulsification, dehydration, and desalination. It can be seen that the process is from the water phase to the oil phase, and then adsorbed to the oil-water interface, the diffusion time is longer, and the desalination and dehydration treatment time is longer

Method used

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Embodiment 1

[0020] The technical solution adopted in the present invention is a method for preparing an oil-soluble high-efficiency electric desalination demulsifier for ultra-heavy oil refining. The specific steps of the preparation method are:

[0021] (1) Synthesis of phenolic amine resin: Add diphenolic propane, tetraethylenepentamine and xylene into a reactor with a stirring device, add formaldehyde solution dropwise after heating to 55°C, and keep the temperature at 65°C for polymerization Reaction; then heat up to 164°C to remove the xylene solvent and moisture in the reactant under reduced pressure, and condense to obtain a reddish-brown phenolic amine resin; among them, diphenolic propane, tetraethylenepentamine, and formaldehyde solution The weight ratio of the formaldehyde solution is 1:4:2, and the weight percent concentration of the formaldehyde solution is 33%.

[0022] (2) Synthesis of block polyether: Add the phenolic amine resin and catalyst obtained in step (1) into the ...

Embodiment 2

[0026] In order to further improve the production efficiency, reduce the cost of production raw materials, and improve the utilization rate of raw materials, a preferred embodiment of the present invention is that the operation steps of the preparation method of the oil-soluble high-efficiency electric desalination demulsifier for super-heavy oil refining are as follows:

[0027] (1) Synthesis of phenolic amine resin: Add diphenolic propane, tetraethylenepentamine and xylene into a reactor with a stirring device, add formaldehyde solution dropwise after heating to 67°C, and keep the temperature at 82°C for polymerization Reaction; then heat up to 175°C to remove the xylene solvent and moisture in the reactant under reduced pressure, and condense to obtain a reddish-brown phenolamine resin; among them, diphenolic propane, tetraethylenepentamine, and formaldehyde solution The weight ratio of the formaldehyde solution is 1:9:5, and the weight percent concentration of the formaldeh...

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Abstract

The invention discloses a preparation method of a super heavy oil refined oil-soluble efficient electro-desalting demulsifying agent, which comprises the steps of synthesizing phenol amine resin; performing condensation reaction of the phenol amine resin with epoxy propane and ethylene oxide sequentially to obtain block polyether; synthesizing thermoplastic phenolic resin by use of phenol, hydrochloric acid and formaldehyde; finally, performing a phenolic resin graft modification reaction between the obtained thermoplastic phenolic resin and the block polyether to obtain a product of super heavy oil refined oil-soluble efficient electro-desalting demulsifying agent. By adopting the preparation method disclosed by the invention, the oil-soluble efficient electro-desalting demulsifying agent can be efficiently prepared, the production cost is reduced, and the utilization rate of raw materials is improved; the demulsifying agent produced by the method can remarkably increase the desalting and dehydration speed of super heavy oil, saves the limited time and can effectively compensate for the shortcomings of a super heavy oil treatment process of a processing device.

Description

technical field [0001] The invention relates to a preparation method of an oil refining demulsifier, in particular to a preparation method of an oil-soluble high-efficiency electric desalination demulsifier for super heavy oil refining, and belongs to the field of petrochemical industry. Background technique [0002] With the large-scale development of ultra-heavy oil in the Karamay oilfield, the output continues to increase. The refining and processing of this type of ultra-heavy crude oil has changed from low-viscosity crude oil mixing in the past to the current separate refining. In the process of crude oil desalting and dehydration, due to the high content of colloid and asphaltene in this type of crude oil and the high viscosity of crude oil, the dehydration and desalination time of this type of ultra-thick crude oil is relatively long. [0003] The usual water-soluble electric desalting demulsifier is injected into the treatment system by back-mixing water, and stays i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/00C10G33/04
Inventor 王明宪慎娜娜刘莉许海涛杨利吴伟龙郑龙李琼红
Owner 克拉玛依市天明化工有限责任公司
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