Deoxygenation and bactericidal corrosion inhibitor (solid)

Applications and Performance
　　This product is a solid agent manufactured using a special molding process.It is composed of polyol phosphate esters,polymers,quaternary ammonium salts,and additives,containing oxygen scavengers,bactericides,and corrosion inhibitors.It is completely soluble in seawater and freshwater.It is particularly suitable for corrosion inhibition,scale inhibition,bactericidal and algae-killing protection of carbon steel metal in seawater cleaning,pressure testing,and seawater storage systems for subsea pipelines.
Main Features
　　Excellent oxygen scavenging,bactericide,and corrosion inhibitor effects;Completely soluble in seawater and freshwater;Non-toxic,harmless,and bio-friendly;Compatible with API 5L PSL2 X65 and Inconel 625 steel subsea pipelines,compatible with Duplex 2205 hose material,and compatible with 316L mechanical composite pipe lining.The corrosion protection shelf life for subsea pipelines is no less than two years.
Instructions for Use
　　Add the required dosage to the subsea pipeline or other system to be protected(concentration less than 150 mg/L).Avoid prolonged exposure to air during use to prevent reduction of the oxygen scavenging component's effectiveness.
Packaging,Transportation,and Storage
　　300g/piece or customized cardboard drum packaging according to customer requirements.
　　Do not store with oxidizing or reducing agents.
　　Store at room temperature(0-30℃)and under normal pressure,away from light.Shelf life is 12 months.

Quality indicators

　　Deoxygenation sterilization and corrosion inhibitor solid solid is a multifunctional chemical agent that integrates the functions of oxygen removal,sterilization,and corrosion inhibition.It is widely used in various industrial fields such as power,chemical,and petroleum.In industrial production,water is an important medium,and its quality directly affects the operational efficiency and lifespan of equipment.Dissolved oxygen in water can cause oxygen corrosion of metal equipment,and the growth of microorganisms can lead to the formation of biofilms,further exacerbating corrosion and affecting water quality.This solid agent can solve both oxygen corrosion and microbial corrosion problems through scientific formula design,providing comprehensive protection for industrial equipment.

　　1、Exploring the mechanism of action

　　Deoxygenation mechanism:The deoxygenation components in solid pharmaceuticals act through two pathways:one is by directly reacting with dissolved oxygen,such as dimethyl ketoxime reacting with oxygen to produce formic acid and nitrogen gas;The second is the catalytic decomposition of dissolved oxygen,where carbazide forms catalytic centers on the metal surface,accelerating the reduction reaction of oxygen.In the boiler system,deoxygenation reaction can be continuously carried out in the feedwater pipeline to ensure that the oxygen content of the water entering the boiler meets the standard.

　　Sterilization mechanism:The bactericidal components destroy the living environment of microorganisms through multiple actions:firstly,they disrupt the cell structure,such as oxime derivatives causing changes in cell membrane permeability;Secondly,it interferes with metabolic processes,and organic bromine compounds inhibit microbial enzyme activity;The third is to block nutrient absorption.Some components in the medicine can chelate with essential metal ions for microorganisms,making it impossible for them to obtain nutrients.In the cooling tower system,sterilization can prevent the problem of packing blockage caused by algae growth.

　　Corrosion inhibition mechanism:There are three ways in which corrosion inhibiting components form protective films:oxide film types such as chromate form a dense oxide layer on the metal surface;Precipitation membrane types such as polyphosphates form insoluble salts with metal ions;Adsorption membrane types such as organic amines cover metal surfaces through physical adsorption.In offshore platform equipment,the synergistic effect of three corrosion inhibition mechanisms can reduce the corrosion rate of stainless steel in seawater by more than 90%.

　　2、Key performance indicators

　　The performance of deoxygenation sterilization and corrosion inhibitor solids can be evaluated through multiple technical indicators,which directly reflect the quality and effectiveness of the product.

　　Corrosion inhibition performance:Corrosion inhibition performance is one of the core indicators for measuring the effectiveness of deoxygenation sterilization and corrosion inhibitor solids.High quality products should be able to maintain a stable corrosion inhibition rate under various water quality conditions.For example,the solid corrosion and scale inhibitor used in the eastern oil fields of the South China Sea has a corrosion inhibition rate of over 85%at 70℃,while the corrosion rate monitored by hanging plates during on-site application is only 0.041mm/a.The corrosion inhibition rate of LJ-158 deoxidizer is over 95%.These data indicate that high-quality deoxygenation sterilization and corrosion inhibitor solids can significantly reduce the corrosion rate of metal materials and extend the service life of equipment.

　　Scale inhibition efficiency:Scale inhibition efficiency reflects the ability of a product to prevent the formation of scale.Deoxygenation sterilization and corrosion inhibitor solid solids with different compositions exhibit varying scale inhibition performance for different types of scale.For example,the solid corrosion and scale inhibitor for the oil fields in the eastern South China Sea has a scale inhibition rate of over 60%for calcium carbonate and over 80%for calcium sulfate.Early boiler water quality deoxygenation and scale inhibitors achieved excellent performance with a scale inhibition rate greater than 97%.For specific application environments,such as high-temperature O2 corrosion resistant water-based annular protection fluids,their scale inhibition rate can even reach over 90%.

　　Sterilization effect:The sterilization effect of deoxygenation sterilization and corrosion inhibitor solids is usually expressed in terms of sterilization rate,which refers to the product's ability to kill or inhibit microorganisms in water.The solid corrosion and scale inhibitors used in the eastern oil fields of the South China Sea have a sterilization rate of up to 99%,and the sterilization rate of the high-temperature O2 corrosion resistant water-based annulus protection fluid has reached 99.9%.Efficient bactericidal ability is crucial for preventing microbial corrosion and the formation of biofouling,especially in environments with suitable water temperatures for microbial growth.

　　Stability and Durability:The stability and durability of deoxygenation sterilization and corrosion inhibitor solids are important advantages that distinguish them from liquid products.For example,the solid corrosion and scale inhibitor used in the eastern oil fields of the South China Sea can slowly dissolve and release for more than 3 months at 70℃,indicating that the product has long-term effectiveness,can continuously provide protection for the system,reduce dosing frequency,and lower maintenance costs.In addition,solid products usually have good chemical stability and can last up to one year under proper storage conditions.

　　3、Guidelines for Usage Standards

　　Dosage control:The dosage is determined based on the water quality testing results.Generally,the boiler feedwater system has a dosage of 50-200g/ton of water,and the circulating cooling water system has a dosage of 10-50g/ton of water.It is recommended to equip online dissolved oxygen meters and corrosion monitoring devices to achieve precise control.

　　Precautions for operation:Wear protective gloves and goggles when adding to avoid direct contact of deoxygenation sterilization and corrosion inhibitor solids with the skin.The storage temperature of the medicine should be kept between 5-40℃,away from sources of fire and oxidants.Regularly check the integrity of the packaging to prevent moisture and clumping.

　　Maintenance suggestion:Conduct a comprehensive inspection of the system every quarter and clean any possible deposits.Replace the sealing components of the dosing pump once a year to ensure the normal operation of the equipment.Establish a medication usage ledger to record key data such as dosage and water quality changes.

　　Deoxygenation sterilization and corrosion inhibitor solid solids,as a class of multifunctional water treatment chemicals,provide comprehensive and efficient protection solutions for industrial water systems through integrated design and solid dosage form advantages.From oil fields in the eastern South China Sea to various industrial boiler systems,from subsea pipelines to circulating cooling water systems,these products demonstrate excellent corrosion inhibition performance,efficient deoxygenation ability,significant sterilization effect,and excellent scale inhibition function.