Step-by-step etherification modified crude oil demulsifier and synthetic method thereof

A demulsifier and step-by-step ether technology, applied in the direction of dehydration/demulsification by chemical methods, can solve the problems of slow demulsification speed, large dosage, and high demulsification temperature

Inactive Publication Date: 2013-12-04
JIANGSU UNIV +1
View PDF11 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to integrate the advantages of a variety of polyether demulsifiers with different structural characteristics, while greatly increasing the molecular weight without affecting the hydrophilicity of the demulsifier, it better solves the problem of demulsif...

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A stepwise etherification modified crude oil demulsifier synthetic method is as follows:

[0019] 1) Add 40 grams of carbon alcohol polyoxypropylene polyoxyethylene ether (NJ-SP169, product of Ningwu High-tech Development Co., Ltd.), 30 grams of alkylphenolic resin polyoxypropylene polyoxyethylene ether (NJ-TA1031, Ningwu High-tech Development Co., Ltd. product), 1 gram of sulfuric acid and 15 grams of toluene add in the reaction bottle with stirring, dropping device and water separator, at 120 o C reaction under stirring conditions for 1 hour to obtain the intermediate product.

[0020] 2) Add 45 grams of toluene solution of polyethylene polyamine polyoxypropylene polyoxyethylene ether (NJ-AE0604, product of Ningwu High-tech Development Co., Ltd.) dropwise to the above intermediate product (including 15 grams of toluene), and the dropwise addition is completed Afterwards, the stirring reaction was continued for 1 hour to obtain a crude product.

[0021] 3) Add 0.4 g ...

Embodiment 2

[0023] A stepwise etherification modified crude oil demulsifier synthetic method is as follows:

[0024] 1) 50 grams of alcohol polyoxypropylene polyoxyethylene ether (NJ-SP169, product of Ningwu High-tech Development Co., Ltd.), 30 grams of alkylphenolic resin polyoxypropylene polyoxyethylene ether (NJ-TA1031, Ningwu High-tech Development Co., Ltd. Technology Development Co., Ltd. product), 2 grams of sulfuric acid and 20 grams of toluene add in the reaction flask with stirring, dropping device and water separator, at 130 o C reacted under stirring conditions for 2 hours to obtain an intermediate product.

[0025] 2) Add 30 grams of toluene solution of polyethylene polyamine polyoxypropylene polyoxyethylene ether (NJ-AE0604, product of Ningwu High-tech Development Co., Ltd.) dropwise to the above intermediate product (including 10 grams of toluene), and the dropwise addition is completed Afterwards, the stirring reaction was continued for 2 hours to obtain a crude product. ...

Embodiment 3

[0028] A stepwise etherification modified crude oil demulsifier synthetic method is as follows:

[0029] 1) 30 grams of alcohol polyoxypropylene polyoxyethylene ether (NJ-SP169, product of Ningwu High-tech Development Co., Ltd.), 40 grams of alkylphenolic resin polyoxypropylene polyoxyethylene ether (NJ-TA1031, Ningwu High-tech Development Co., Ltd. Technology Development Co., Ltd. product), 1 gram of sulfuric acid and 15 grams of toluene add in the reaction flask that has stirring, dripping device and water separator, at 130 o C reaction under stirring conditions for 1 hour to obtain the intermediate product.

[0030] 2) Add 45 grams of toluene solution of polyethylene polyamine polyoxypropylene polyoxyethylene ether (NJ-AE0604, product of Ningwu High-tech Development Co., Ltd.) dropwise to the above intermediate product (including 15 grams of toluene), and the dropwise addition is completed Afterwards, the stirring reaction was continued for 3 hours to obtain a crude produc...

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 discloses a step-by-step etherification modified crude oil demulsifier and a synthetic method thereof. The weight percentage of carbon alcohol polypropylene oxide polyoxyethylene ether is 30-60%. The weight percentage of alkyl phenolic resin poly acrylic polyoxyethylene ether is 20-40%. The weight percentage of multi-ethylene polyamine polypropylene oxide polyoxyethylene ether is 10-30%. The weight of acid catalysts is 0.1-5% of the whole weight of industrial polyether. The weight of added silicone coupling agents is 0.01-3% of industrial polyether. The weight of added solvents is 20-50% of the overall weight of industrial polyether. According to the step-by-step synthetic etherification modified crude oil demulsifier and the synthetic method thereof, production technology is simple, synthesis conditions are easy to control, and obtained demulsifiers are applied to low-temperature demulsification dehydration of crude oil lactescence.

Description

technical field [0001] The invention belongs to the technical field of chemicals used in petroleum industry. The invention relates to a stepwise etherified modified crude oil demulsifier for demulsification and dehydration of crude oil emulsion and a synthesis method thereof. Background technique [0002] Demulsification and dehydration of crude oil emulsion is an important link in the process of oil production and gathering. With the continuous exploitation of crude oil and the continuous development and application of oil recovery technology, the crude oil emulsion has become more stable. Most of the crude oil produced in the oil field is exploited in the form of oil-water emulsion, and the water content of crude oil increases year by year, which aggravates the The task of demulsification and dehydration of emulsified crude oil is realized. At present, the most commonly used crude oil demulsification method in the petroleum industry is to add a demulsifier to the crude o...

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
IPC IPC(8): C10G33/04C08G81/00C08J3/24
Inventor 倪良郦晨薇应珏张文莉翟洪金王蕾郑磊陈杰倪小明
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap