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Raw petroleum demulsifying agent and preparation method thereof

A crude oil demulsifier and demulsifier technology, applied in the field of petroleum additives, can solve the problems of poor crude oil adaptability and low demulsification efficiency, achieve low demulsification temperature, reduce crude oil production cost, and be easy to popularize and apply

Inactive Publication Date: 2015-02-18
淄博凯美可工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing demulsifiers on the market have problems such as poor adaptability to crude oil, low demulsification efficiency, and easy corrosion

Method used

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  • Raw petroleum demulsifying agent and preparation method thereof

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Effect test

Embodiment 1

[0020] A crude oil demulsifier, comprising the following components in parts by weight: 1 part of Sangjisheng, 0.1 part of Fangji, 10 parts of polyoxypropylene-polyoxyethylene block copolymer, 0.01 part of demulsifier XH-1, three 2 parts of phosphorus oxychloride, 1 part of borax, 5 parts of hexamethylenetetramine, 0.1 part of fluorocarbon surfactant, 5 parts of ethanol, 1 part of pentaerythritol, and 80 parts of water.

[0021] The preparation method of the embodiment crude oil demulsifier of the present invention, comprises the steps:

[0022] Step (1), crush Sangjisheng and Fangji to 100-200 meshes, add water 4 times its mass, heat at 60°C for 2 hours, cool down to room temperature, centrifuge, take supernatant, pass through 0.22 microns filter membrane to obtain solution A; wherein, the centrifugation speed is 3000r / min, and the centrifugation time is 10min;

[0023] Step (2), put the polyoxypropylene-polyoxyethylene block copolymer in the reaction kettle, add phosphorus ...

Embodiment 2

[0026] A crude oil demulsifier, comprising the following components in parts by weight: 3 parts of Sangjisheng, 0.4 parts of Fangji, 15 parts of polyoxypropylene-polyoxyethylene block copolymer, 0.05 parts of demulsifier XH-1, three parts 5 parts of phosphorus oxychloride, 3 parts of borax, 8 parts of organic auxiliary agent, 0.2 part of fluorocarbon surfactant, 7 parts of ethanol, 3 parts of pentaerythritol, 100 parts of water; described organic auxiliary agent is diethylamine and monoethanolamine Mixture, its specific ratio is not required.

[0027] The preparation method of the embodiment crude oil demulsifier of the present invention, comprises the steps:

[0028] Step (1), crush Sangjisheng and Fangji to 100-200 mesh, add water 7 times its mass, heat at 80°C for 4 hours, cool down to room temperature, centrifuge, take supernatant, pass through 0.22 microns filter membrane to obtain solution A; wherein, the centrifugation speed is 3000r / min, and the centrifugation time is...

Embodiment 3

[0032] A crude oil demulsifier, comprising the following components in parts by weight:

[0033] 2 parts of Sangjisheng, 0.3 parts of Fangji, 13 parts of polyoxypropylene-polyoxyethylene block copolymer, 0.04 parts of demulsifier XH-1, 3 parts of phosphorus oxychloride, 2 parts of borax, 7 parts of organic additives, fluorine 0.14 parts of carbon surfactant, 6 parts of ethanol, 2 parts of pentaerythritol, and 87 parts of water; the organic auxiliary agent is a mixture of hexamethylenetetramine, diethylamine and triethylamine, and its specific ratio is not required.

[0034] The preparation method of the embodiment crude oil demulsifier of the present invention, comprises the steps:

[0035] Step (1), crush Sangjisheng and Fangji to 100-200 meshes, add water 6 times its mass, heat at 72°C for 3 hours, cool down to room temperature, centrifuge, take supernatant, pass through 0.22 microns filter membrane to obtain solution A; wherein, the centrifugation speed is 3000r / min, and t...

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Abstract

The invention relates to a raw petroleum demulsifying agent and a preparation method thereof, and belongs to the technical field of petroleum additives. The raw petroleum demulsifying agent comprises the following components in parts by weight: 1-3 parts of parasitic loranthus, 0.1-0.4 part of stephania terandra, 10-15 parts of polypropylene oxide-polyoxyethylene segmented copolymer, 0.01-0.05 part of demulsifying strain XH-1, 2-5 parts of phosphorus oxychloride, 1-3 parts of sodium borate, 5-8 parts of an organic promoter, 0.1-0.2 part of a fluorocarbon surfactant, 5-7 parts of ethyl alcohol, 1-3 parts of pentaerythritol and 80-100 parts of water. The preparation method of the raw petroleum demulsifying agent is simple, the prepared raw petroleum demulsifying agent is high in demulsifying efficiency, wide in adaptability, small in using amount and low in demulsifying temperature, electric fields do not need to be added, the energy is economized, the extraction cost of raw petroleum is reduced, and the preparation method is easy for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of petroleum additives, and in particular relates to a crude oil demulsifier and a preparation method thereof. Background technique [0002] Because some solids are difficult to dissolve in water, when one or more of these solids exist in an aqueous solution in large quantities, under the agitation of hydraulic or external power, these solids can exist in water in an emulsified state to form an emulsion. Theoretically speaking, this system is unstable, but if there are some surfactants (soil particles, etc.), the emulsification state is very serious, and even the two phases are difficult to separate, the most typical is the oil-water mixture in the oil-water separation As well as the water-oil mixture in sewage treatment, a relatively stable water-in-oil or oil-in-water structure is formed in this two-phase, and its theoretical basis is "electric double layer structure". [0003] In this case, some chemical...

Claims

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Application Information

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IPC IPC(8): C10G33/04
CPCC10G33/04
Inventor 李瑞国
Owner 淄博凯美可工贸有限公司
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