Antioxidant corrosion inhibitor

An anti-oxidant corrosion inhibitor and catalyst technology, applied in the field of anti-oxidant corrosion inhibitors, can solve the problems of accelerated local pitting, high cost, large amount of anti-oxidant corrosion inhibitor, etc., and achieves corrosion prevention, good compatibility, excellent The effect of high temperature antioxidant properties

Active Publication Date: 2019-07-16
上海贵通新材料科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional anti-oxidant corrosion inhibitors are used in a large amount and cost high, and when

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
  • Antioxidant corrosion inhibitor
  • Antioxidant corrosion inhibitor
  • Antioxidant corrosion inhibitor

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Antioxidant corrosion inhibitor is prepared by the following method:

[0021] Put dicyandiamine, activated alumina, sulfonic acid, and zeolite into the reaction kettle, stir, heat up to 120°C, add dichloropropane at a rate of 10mL / min, stir, heat up to 140°C, keep warm for 2 hours, and heat up to 180°C, keep warm for 1h, heat up to 200°C, then pass inert gas to 1MPa, keep warm and pressurized for 1h, discharge inert gas, return the pressure to atmospheric pressure, cool to below 50°C, and obtain intermediates, among which dicyandi The molar ratio of amine to dichloropropane is 1:1.2;

[0022] Gelatinize starch at 70°C, cool to room temperature, add acrylamide, continuously add ammonium sulfate-sodium bisulfite during stirring, carry out redox reaction, cool, add ethanol for precipitation, take the precipitate, and dry it in vacuum at 50°C to obtain powder body, redissolve the powder in acetone, extract, take the extract, and dry it in vacuum at 50°C to obtain a copolym...

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 an antioxidant corrosion inhibitor. The antioxidant corrosion inhibitor is prepared through the steps of charging dicyanodiamine, a catalyst and zeolite into a reaction kettleand adding propylene dichloride to obtain an intermediate body; pasting starch, adding acrylamide, and continuously adding an initiating agent in the mixing process to obtain a copolymer; and chargingthe intermediate body, the copolymer, benzotriazole, sulfide and silicate into the reaction kettle in sequence to be fixed and then cooled to the indoor temperature to obtain the antioxidant corrosion inhibitor. Through the antioxidant corrosion inhibitor, a compact and firm protective film can be formed on the surfaces of oil gas equipment and a gathering transport pipeline in a moist high-temperature environment, and corrosion of a sewage medium to the oil gas equipment and the gathering transport pipeline is effectively prevented. The antioxidant corrosion inhibitor has the excellent high-temperature antioxidant performance.

Description

technical field [0001] The invention relates to the technical field of petroleum processing. More specifically, the present invention relates to an anti-oxidation corrosion inhibitor. Background technique [0002] After the oilfield enters the high water cut period, the dissolved oxygen contained in the oilfield sewage will often form electrochemical corrosion or microbial corrosion on oil and gas equipment and pipelines, resulting in continuous corrosion and perforation in the sewage system. Usually very low concentration of oxygen (less than 1mg / L) can cause extremely serious corrosion. If HCO is present in the sewage medium 3 - or CO 2 Oxygen will increase their corrosiveness sharply, causing corrosion of oil and gas equipment and pipelines, and even corrosion and fracture of oil pipes, shortening the service life of oil and gas wells and causing huge economic losses. [0003] At present, there are many measures for oxygen corrosion of oil and gas equipment and pipel...

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): C23F11/08
CPCC23F11/08
Inventor 徐文忠
Owner 上海贵通新材料科技有限公司
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