Modern diesel engines need diesel exhaust fluid. DEF liquid is dangerous. If incorrectly stored, its finely blended deionized water and high-purity urea may deteriorate and pollute. Poor DEF storage can damage SCR systems, engine performance, and require expensive repairs. DEF storage and stabilizer function must be understood for diesel engine efficiency and lifespan.
The Importance of Proper DEF Storage
DEF concentration and purity are crucial for efficacy. The average DEF aqueous urea solution is 32.5%. This concentration helps the SCR system minimize NOx. Keep this concentration and prevent impurities from lowering efficacy with proper storage. Dust, filth, metals, chemicals, and tap water pollute. Addition of these contaminants to DEF can cause issues. Particulates can clog SCR injectors and filters, reducing DEF flow and catalytic conversion.
Key Principles of DEF Storage
DEF purity and shelf life depend on container. Best DEF storage containers are stainless steel or HDPE. Due to their inertness and corrosion resistance, DEF solution is clean. Corroding copper, zinc, aluminium, and carbon steel containers can contaminate and degrade DEF.
Choosing the Right Storage Container
The DEF storage container should be special. To prevent contaminants and sunshine from accelerating DEF breakdown, these containers are opaque and impermeable.
Controlling Environmental Conditions
DEF integrity requires temperature control. Store DEF out of direct sunlight and heat in a cool, dry, well-ventilated area. Ideal storage temperature ranges from 12°F (-11°C) to 86°F (30°C). Other temperatures may freeze or deteriorate DEF faster. Cold areas may benefit from a heated storage tank or blanket to keep DEF above freezing. Provide ventilation and shade in hotter climates to avoid overheating.
Implementing Proper Handling Procedures
Preventing DEF contamination during filling, dispensing, and transfer requires care. Instead of funnels, pipes, or pumps for diesel or lubricants, use DEF-specific equipment. Before filling a container or distributing DEF, clean the equipment of dust and other pollutants. Only clean with DEF-compatible products or deionized water. Avoid tap water because contaminants lower DEF. Clean the nozzle and area before adding DEF to the car’s tank. Avoid tank overfilling to prevent leaks and contamination.
The Role of DEF Stabilizers in Preserving DEF Quality
DEF stabilizer prevent contamination, prolong fluid shelf life, and maintain quality. Also vital is proper storage. DEF stabilizers inhibit contamination, microbial development, and hydrolysis.
Preventing Hydrolysis
The hydrolysis of urea produces carbon dioxide and ammonia. Some pollutants and high heat accelerate this process. By limiting hydrolysis, DEF stabilizers reduce urea degradation and preserve DEF.
Microorganism Growth Control
Microbial growth in humid settings can harm DEF. Urea solution supports bacteria and fungi, which create metabolites that pollute fluid and clog SCR systems. Biocides in DEF stabilizers destroy microorganisms to prevent biofilms and purify DEF.
Protecting Against Contamination
Chelating compounds in certain DEF stabilizers prevent metallic impurities from speeding urea breakdown or interfering with SCR. Chelating chemicals reduce the DEF’s copper, zinc, and aluminium burden from equipment or containers.
Conclusion
DEF storage is essential for its effectiveness. Selecting storage containers, managing the atmosphere, and handling cautiously are crucial. DEF stabilizers prevent contamination and deterioration, extending its performance and shelf life. Understanding DEF storage and stabilizers helps operators maintain diesel engine efficiency and fulfil strict environmental standards. These solutions save maintenance expenses and protect the environment.