Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of salt-resisting stable-type drag reducer

A stable, drag-reducing agent technology, applied in mechanical equipment, gas/liquid distribution and storage, pipeline systems, etc., can solve problems such as poor salt resistance and drag reduction performance, and achieve enhanced salt resistance, Excellent salt tolerance and salt storage performance, the effect of slowing down the exchange rate and extent

Inactive Publication Date: 2018-04-24
汪逸凡
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a preparation method of a salt-resistant and stable drag reducer for the problems of poor drag reduction performance and poor salt resistance after the introduction of functional monomers into traditional drag reducers

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 salt-resisting stable-type drag reducer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Take fresh Salicornia and wash, freeze-dry and grind through a 50-mesh sieve, collect Salicornia granules and mix Salicornis granules with a mass fraction of 5% and a pH of 6.5 sodium dihydrogen phosphate- Stir and mix the disodium hydrogen phosphate solution, ultrasonically disperse at 200W for 10min, collect the dispersion and add the mixed enzyme to the dispersion at 50U / mL, stir and mix at room temperature for 1h, heat to boil and keep warm for 3min, Use glacial acetic acid to adjust the pH to 4.0, centrifuge at 8000r / min and collect the lower precipitate, rinse with 80% ethanol solution for 3 times, vacuum freeze-dry to obtain Salicornia fiber; weigh in parts by weight Put 25 parts of acetone, 10 parts of glutaraldehyde, and 75 parts of deionized water in a beaker, stir and mix and add glacial acetic acid dropwise until the pH reaches 5.0, and control the dropping rate of glacial acetic acid to 0.2mL / min. , to obtain a modified solution, and according to the mass r...

example 2

[0020] Take fresh Salicornia and wash, freeze-dry and grind through a 50-mesh sieve, collect Salicornia granules and mix Salicornis granules with a mass fraction of 5% and a pH of 6.5 sodium dihydrogen phosphate- Stir and mix the disodium hydrogen phosphate solution, ultrasonically disperse at 250W for 12 minutes, collect the dispersion and add the mixed enzyme to the dispersion at 50 U / mL, stir and mix at room temperature for 2 hours, heat to boil and keep warm for 4 minutes, Use glacial acetic acid to adjust the pH to 4.0, centrifuge at 9000r / min and collect the lower precipitate, rinse with 80% ethanol solution for 4 times, vacuum freeze-dry to obtain Salicornia fiber; weigh in parts by weight Put 27 parts of acetone, 12 parts of glutaraldehyde, and 77 parts of deionized water in a beaker, stir and mix and add glacial acetic acid dropwise until the pH reaches 5.0, and control the dropping rate of glacial acetic acid to 0.2mL / min. , to obtain a modified solution, and accordi...

example 3

[0022] Take fresh Salicornia and wash, freeze-dry and grind through a 50-mesh sieve, collect Salicornia granules and mix Salicornis granules with a mass fraction of 5% and a pH of 6.5 sodium dihydrogen phosphate- Stir and mix the disodium hydrogen phosphate solution, ultrasonically disperse at 300W for 15 minutes, collect the dispersion and add the mixed enzyme to the dispersion at 50 U / mL, stir and mix at room temperature for 2 hours, heat to boil and keep warm for 5 minutes, Use glacial acetic acid to adjust the pH to 4.0, centrifuge at 10000r / min and collect the lower precipitate, rinse with 80% ethanol solution for 5 times, and vacuum freeze-dry to obtain Salicornia fiber; weigh in parts by weight Put 30 parts of acetone, 15 parts of glutaraldehyde, and 80 parts of deionized water in a beaker, stir and mix and add glacial acetic acid dropwise until the pH reaches 5.0, and control the dropping rate of glacial acetic acid to 0.2mL / min. , to obtain a modified solution, and ac...

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 salt-resisting stable-type drag reducer and belongs to the technical field of drag reducers. According to the preparation method, salicornia serves as a main raw material and is subjected to enzymolysis and extraction, a salicornia cellulosic material in the salicornia is collected, and the salt content is effectively adsorbed and stored; and meanwhile, salicornia fibers are fixed through glutaraldehyde and cross-linked, the fibers are effectively cross-linked to form a space net-shaped structure, the exchanging speed and extent between natrium ions and calcium ions in the salt content can be effectively decreased during salt content accumulating, and salt resistance of the material is effectively improved. According to the preparation method, substances such as acrylamide serve as a drag reducer material main body and are loaded by the salicornia fibers, the molecular steric hindrance of the drag reducer is enlarged, the hydrolysis-resisting capacity of the drag reducer is effectively improved, high polar groups in the drag reducer have hydrophilic interaction and electrostatic repulsive force, thus the hydrodynamic volume of molecular chains is enlarged, the drag reducer does not generate sediment with calcium ions and the natrium ions, the drag reduction effect is not influenced in surface water, and the salt-resisting capacity is improved.

Description

technical field [0001] The invention relates to a preparation method of a salt-tolerant and stable drag reducer, belonging to the technical field of drag reducers. Background technique [0002] Due to the existence of frictional resistance or frictional pressure drop in the pipeline, the movement of the fluid in the pipeline is restricted, resulting in an increase in energy consumption or a decrease in the delivery volume of the pipeline. Adding a small amount of certain substances with special chemical properties (such as polymers, surfactants, etc.) Special substances whose fluid flow resistance is significantly reduced are called drag reducers. Because adding a small amount of drag reducing agent to the fluid can increase the delivery volume and reduce energy consumption, drag reducing agent drag reduction is the most economical and widely used one among many drag reducing technologies. Although the commonly used water-soluble drag reducing agents polyacrylamide and pol...

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): F17D1/16C08F220/56C08F220/06C08J3/24C08L97/02
CPCY02E60/34F17D1/16C08F220/56C08J3/24C08J2397/02C08F220/06
Inventor 汪逸凡蒋益
Owner 汪逸凡
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com