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Demulsifying agent

A technology of demulsifier and weight ratio, which is applied in the field of sewage treatment chemicals, can solve the problems of low demulsification efficiency and poor adaptability of crude oil, etc., and achieve the effects of good demulsification performance, fast dehydration speed and wide application range

Active Publication Date: 2016-12-14
JIANGSU SANHE E P GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, 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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A demulsifier, the weight ratio of each component is: 75 parts of triethanolamine, 65 parts of polyoxypropylene, 45 parts of sodium hydroxide, 60 parts of sodium phosphate, 110 parts of castor oil, 5 parts of methanol, 320 parts of propylene oxide, 250 parts of ethylene oxide, 315 parts of glacial acetic acid, 240 parts of water.

Embodiment 2

[0018] A demulsifier, the weight ratio of each component is: 82 parts of triethanolamine, 68 parts of polyoxypropylene, 43 parts of sodium hydroxide, 65 parts of sodium phosphate, 117 parts of castor oil, 25 parts of methanol, 305 parts of propylene oxide, 357 parts of ethylene oxide, 245 parts of glacial acetic acid, 358 parts of water.

Embodiment 3

[0020] A demulsifier, the weight ratio of each component is: 75 parts of triethanolamine, 85 parts of polyoxypropylene, 60 parts of sodium hydroxide, 75 parts of sodium phosphate, 120 parts of castor oil, 30 parts of methanol, 400 parts of propylene oxide, 350 parts of ethylene oxide, 400 parts of glacial acetic acid, and 400 parts of water.

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PUM

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Abstract

The invention relates to a demulsifying agent and belongs to the field of a sewage treatment reagent. The demulsifying agent is prepared from 50 to 100 parts of triethanolamine, 45 to 85 parts of polyoxypropylene, 10 to 60 parts of sodium hydroxide, 50 to 75 parts of sodium phosphate, 100 to 120 parts of castor oil, 0 to 30 parts of methanol, 300 to 400 parts of propylene oxide, 200 to 350 parts of ethylene oxide, 300 to 400 parts of glacial acetic acid and 200 to 400 parts of water. Compared with the prior art, the demulsifying agent has the characteristics of high adaptability, high demulsifying efficiency and not liable to cause corrosion.

Description

technical field [0001] The invention relates to a sewage treatment agent, in particular to a demulsifier. Background technique [0002] With the development of the world's petroleum industry, the amount of oil production is increasing day by day, which makes the amount of crude oil emulsion increase day by day. Especially after water injection is used to enhance oil recovery, the water content of crude oil increases significantly, and most of the crude oil is extracted in the form of oil-water emulsion. . Crude oil production fluid contains a large amount of water and inorganic salts, which brings great difficulties to oil and gas gathering and transportation and crude oil refining, so dehydration and desalination must be carried out. In order to solve the problems in the process of oil and gas gathering and transportation, a large amount of chemical agents must be used. The chemicals used in the process of oil and gas gathering and transportation are called oil and gas gat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/04
CPCC10G33/04
Inventor 吴朋至
Owner JIANGSU SANHE E P GRP