Oxygen Scavenger Biocide and Corrosion Inhibitor

　　Oxygen scavenger biocide and corrosion inhibitors are key chemicals in the field of industrial water treatment,and their core value lies in achieving the three functions of deoxygenation,sterilization,and corrosion inhibition through a single formula,effectively solving the problems of corrosion and microbial contamination in circulating water systems and boiler water systems.Traditional water treatment requires the addition of oxygen scavengers,bactericides,and oxygen scavenger biocide and corrosion inhibitors separately,which is complex and costly to operate.In contrast,composite oxygen scavenger biocide and corrosion inhibitors simplify the process and improve treatment efficiency through chemical synergy.
　　This type of product is suitable for high-temperature and high-pressure water systems in industries such as power,chemical,metallurgy,and papermaking,and has significant protective effects on metal equipment such as carbon steel and copper alloys.Its mechanism of action includes chemical deoxygenation,oxide film formation,microbial inhibition,and metal surface passivation,which can significantly reduce equipment maintenance frequency and extend service life.
　　1、Typical application areas
　　Boiler system protection:Boiler systems are one of the main application areas of oxygen scavenger biocide and corrosion inhibitors.JR-821 boiler deoxygenation,corrosion and scale inhibitor is specifically designed for deoxygenation and scale inhibition in industrial low-pressure steam boilers and hot water boilers during operation.It can effectively inhibit the corrosion of boiler tubes by dissolved oxygen in the feedwater.These types of products are usually based on high temperature resistant organic compounds with large molecules,combined with oxygen scavengers,dispersants,and stabilizers,to prevent sediment formation through chemical reactions with O₂,Ca²⁺,Mg²⁺ions in furnace water.
　　When using this type of medication,the hot water boiler calculates based on the entire water volume of the closed-loop system,adding 0.25-1.5kg per ton of water once a week;Steam boilers add 0.10-1.5kg of water per ton continuously through an automatic dosing system.
　　Marine oil engineering:During the cleaning and pressure testing process of submarine pipelines,a large amount of seawater is required,and the large amount of chloride ions,hardness ions,dissolved oxygen,and microorganisms contained in seawater can cause corrosion damage and scaling to the inner wall of the submarine pipeline.Research has shown that the corrosion rate of steel in deoxygenated seawater is as high as 0.42-0.60mm/a.
　　IMC-932H multifunctional preservative is specially developed for this environment,with four functions of deoxygenation,corrosion inhibition,scale inhibition,and sterilization.It can be continuously added when injecting seawater,or continuously added for 6 hours during the key steps of pipeline cleaning and pressure testing.The protective effect can last for more than 5 days.On site tests have shown that the agent can significantly reduce the corrosion rate of carbon steel to below the requirement of 0.076mm/a.
　　Oil and gas field exploitation:In oil and gas field environments,especially in shale gas field collection pipelines and water pipelines,oxygen scavenger biocide and corrosion inhibitors and bactericides are crucial for controlling corrosion and extending pipeline life.A patented oxygen scavenger biocide and corrosion inhibitor for shale gas fields contains amide oligomers,aldehydes,tetrahydroxymethylphosphonium sulfate,alkylphenol polyoxyethylene ether OP-10,and water,among other components,which have strong killing effects on both anaerobic and aerobic bacteria.
　　The research on corrosion protection of air foam flooding in Yanchang Oilfield found that high oxygen content is one of the main reasons for serious corrosion.Controlling the oxygen content within the concentration range of 4%can effectively slow down the degree and speed of corrosion.In this environment,the high-efficiency oxygen scavenger biocide and corrosion inhibitor YC-607 and on-site oxygen scavenger biocide and corrosion inhibitor 9#can reduce the corrosion rate by 56.3%.
　　Special environmental applications:Researchers have developed specialized formulas for extreme environments with high temperatures and pressures.A high-temperature O₂corrosion resistant water-based annular protection liquid is formulated with 50%oxygen scavenger biocide and corrosion inhibitor H-1+10%scale inhibitor Z-3+10%bactericide SJ-1+15%methanol+15%water.Under the condition of a dosage of 4%in the temperature range of 50℃-140℃,it can achieve excellent performance with a corrosion rate of less than 0.076mm/a,a scale inhibition rate greater than 90%,and a sterilization rate greater than 99.9%.
　　2、Precautions for use
　　When using oxygen scavenger biocide and corrosion inhibitors,the following points should be noted:
　　Safe operation:Most oxygen scavenger biocide and corrosion inhibitors are chemical substances,and protective equipment such as rubber gloves should be worn when using them.If accidentally splashed on the skin,rinse immediately with water,especially to avoid splashing into the eyes.
　　Concentration control:The concentration of the medication used should be determined according to the specific system situation.The optimal pre membrane concentration of IMC-932H in seawater is 1500mg/L,and the optimal pre membrane time is 6 hours;When used as a continuous additive,the amount of additive is 1000mg/L.
　　Packaging and storage:These products are often packaged in plastic drums and should be stored indoors in a ventilated and cool place,with attention to moisture prevention,sun protection,and sealing.The usual storage period is about one year.
　　Environmental compatibility:When selecting drugs,environmental impact factors should be considered.Modern products tend to develop low toxicity and environmentally friendly formulas to reduce potential impact on the environment.
　　3、Three core advantages of oxygen scavenger biocide and corrosion inhibitors
　　Adopting chromium free and phosphorus free formulas,replacing traditional toxic substances with green ingredients such as PBTCA,the COD of wastewater is reduced by 60%,and the total phosphorus discharge is reduced from 12mg/L to below 3mg/L,fully complying with the first level discharge standard of GB8978-1996.Plant extract based drugs with a biodegradation rate of 90%(such as tea polyphenol complex)have been industrialized and applied to reduce pollution from the source.
　　Integrated with triple functions of deoxygenation,sterilization,and corrosion inhibition,the zinc salt polyphosphate composite formula simultaneously forms a physical barrier and chelation protection in high-pressure systems,increasing corrosion inhibition efficiency by 40%,scale inhibition rate by 97%,calcium tolerance exceeding 1200mg/L,significantly extending equipment life and reducing maintenance frequency.
　　The intelligent dosing device equipped with pH/ORP online monitoring system can adjust the dosage in real time,reducing drug consumption by 25%and controlling steam quality fluctuations within±0.05mg/L.Temperature resistant agents(such as ATMP,which maintains 90%efficiency at 150℃)break through the bottleneck of high-temperature applications and promote the extension of water treatment technology to extreme working conditions.
　　Oxygen scavenger biocide and corrosion inhibitors combine multiple functions and not only solve various problems in water systems,but also have advantages such as safety,environmental protection,and significant economic benefits.They have become the preferred solution for modern industrial water treatment.With the continuous advancement of technology,this type of medication will continue to innovate in formula design and performance optimization,providing more comprehensive solutions for industrial water treatment.