Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of compound methyl-ethyloxy silicone oil demulsifier

A methyl ethoxy silicone oil demulsifier and composite technology, which is applied in the field of preparation of composite methyl ethoxy silicone oil demulsifiers, can solve the problems of processing and transportation, high water content of crude oil, expensive catalysts, etc. Achieve the effect of improving demulsification and dehydration performance, clear water color, and neat oil-water interface

Inactive Publication Date: 2016-12-21
北京迪威尔石油天然气技术开发有限公司
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tertiary oil recovery uses measures such as water injection, alkali flooding, and polymer flooding, so the water content of the crude oil produced is high, which will adversely affect the original processing and transportation in the later stage
However, the catalyst is relatively expensive and must be stored and used in an inert environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of compound methyl-ethyloxy silicone oil demulsifier
  • Preparation method of compound methyl-ethyloxy silicone oil demulsifier
  • Preparation method of compound methyl-ethyloxy silicone oil demulsifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The synthesis of embodiment 1 composite methyl ethoxy silicone oil demulsifier A

[0028] a. Synthesis of Tetradecyl Ether

[0029] (1) Weigh 21g of myristyl alcohol and 0.8g of potassium hydroxide solid, and put them into the reaction kettle.

[0030] (2) Tighten the screws with a wrench, replace the air in the reactor with nitrogen three times, add 90g of propylene oxide, turn on the heating switch and slowly raise the temperature to 120°C. After the pressure in the kettle drops to 0, keep the temperature and continue the reaction for 60 minutes, turn on the circulating cooling water, and turn off the cooling water when the temperature drops below 40°C.

[0031] (3) Add 60g of ethylene oxide with a feeding pump, turn on the heating switch and slowly raise the temperature to 120°C, after the pressure in the kettle drops to 0, keep the temperature and continue the reaction for 60min, turn on the circulating cooling water, and lower the temperature to below 40°C Turn o...

Embodiment 2

[0041] The synthesis of embodiment 2 composite methyl ethoxy silicone oil demulsifier B

[0042] a. Synthesis of Tetradecyl Ether

[0043] (1) Weigh 21g of myristyl alcohol and 0.8g of potassium hydroxide solid, and put them into the reaction kettle.

[0044] (2) Tighten the screws with a wrench, replace the air in the reactor with nitrogen three times, add 50g of propylene oxide, turn on the heating switch and slowly raise the temperature to 120°C. After the pressure in the kettle drops to 0, keep the temperature and continue the reaction for 60 minutes, turn on the circulating cooling water, and turn off the cooling water when the temperature drops below 40°C.

[0045] (3) Add 60g of ethylene oxide with a feeding pump, turn on the heating switch and slowly raise the temperature to 120°C, after the pressure in the kettle drops to 0, keep the temperature and continue the reaction for 60min, turn on the circulating cooling water, and lower the temperature to below 40°C Turn o...

Embodiment 3

[0053] The synthesis of embodiment 3 composite methyl ethoxy silicone oil demulsifier B

[0054] a. Synthesis of Tetradecyl Ether

[0055] (1) Weigh 21g of myristyl alcohol and 0.8g of potassium hydroxide solid, and put them into the reaction kettle.

[0056] (2) Tighten the screws with a wrench, replace the air in the reactor with nitrogen three times, add 38g of propylene oxide, turn on the heating switch and slowly raise the temperature to 120°C. After the pressure in the kettle drops to 0, keep the temperature and continue the reaction for 60 minutes, turn on the circulating cooling water, and turn off the cooling water when the temperature drops below 40°C.

[0057](3) Add 60g of ethylene oxide with a feeding pump, turn on the heating switch and slowly raise the temperature to 120°C, after the pressure in the kettle drops to 0, keep the temperature and continue the reaction for 60min, turn on the circulating cooling water, and lower the temperature to below 40°C Turn of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of a compound methyl-ethyloxy silicone oil demulsifier. The preparation method comprises the following steps: firstly preparing tetradecanol polyether, then carrying out a reaction between tetradecanol polyether and methyl-ethyloxy silicone oil to prepare a primary crude oil demulsifier, and finally carrying out chain extension between the primary crude oil demulsifier and propylene glycol and / or propylene glycol polyether so as to prepare the compound methyl-ethyloxy silicone oil demulsifier. By the preparation method, preparation process is reduced, and cost is lowered. Content of each component is adjusted by controlling replacement rate. By chain extension of glycol and / or dihydroxy polyether, demulsification dehydration performance of the demulsifier is enhanced. Dehydrated water is clear in color and the oil-water interface is tidy.

Description

technical field [0001] The invention relates to a preparation method of a composite methyl ethoxy silicone oil demulsifier, which belongs to the field of chemical industry. Background technique [0002] With the society's increasing demand for oil, relying only on primary and secondary oil recovery technology is far from meeting people's needs, and most oil fields have entered the stage of tertiary oil recovery. Tertiary oil recovery uses measures such as water injection, alkali flooding, and polymer flooding, so the crude oil produced has a high water content, which will adversely affect the original processing and transportation in the later stage. The addition of chemical demulsifiers can effectively separate the oil and water in crude oil. At present, most chemical demulsifiers are polyether surfactants. [0003] At present, silicon-containing polyether has two forms, namely Si-O-C and Si-C combination type. Most of the silicon-containing polyethers in China are Si-C p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/46C08G65/28C10G33/04
CPCC08G77/46C08G65/2609C10G33/04
Inventor 李世洪孙岩聂志泉楚海强李延涛刘静
Owner 北京迪威尔石油天然气技术开发有限公司