Product Description
Automotive-grade urea, also known as diesel exhaust fluid(DEF) or AdBlue, is a solutionused in selective catalytic reduction (SCR) systems indiesel engines. It is designed to reduce harmfulnitrogen oxide (NOx) emissions from diesel vehicles.
Automotive-grade urea is a highly purified solution ofurea dissolved in demineralized water. It is non-toxic,non-flammable, and safe to handle. The urea solution isinjected into the vehicle's exhaust system, where itundergoes a chemical reaction with the hot exhaustgases.
Inside the SCR catalyst, the urea solution breaks downinto ammonia (NH3) and carbon dioxide (CO2). Theammonia reacts with the NOx emissions, converting theminto nitrogen (N2) and water vapor (H2O), which areharmless components of the air we breathe.
What should we pay attention to when we choose a AGUsupplier?
1. Quality assurance.
Look for suppliers that adhere to ISO 22241 standards.This ensures that prilled urea you purchase meets thenecessary purity and quality requirements.
2. Certification and Compliance: For example, inEurope, DEF must meet the DIN 70070 standard. and dothey have the REACHE certificate that required inEurope market.
3. Supply Chain Capability: They should have thecapacity to provide a consistent and uninterruptedsupply of Automotive urea to meet your requirements.
4. Pricing and Contracts: Compare prices from differentsuppliers, but also consider the overall valueprovided.
Detailed Photos
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According to ISO22241 standard
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Test Items
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Unit
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specification
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T-nitrogen
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%
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>46
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moisture
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%
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<0.5
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Biuret
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%
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<0.8
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alkalinity(NH3)
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%
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<0.05
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aldehyde
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mg/kg
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<15.4
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insoluble matter
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mg/kg
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<61.5
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PO4
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mg/kg
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<1.5
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Ca
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mg/kg
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<1.5
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Fe
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mg/kg
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<1.5
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Cu
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mg/kg
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<0.6
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Zn
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mg/kg
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<0.6
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Ni
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mg/kg
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<0.6
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Cr
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mg/kg
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<0.6
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Mg
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mg/kg
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<1.5
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Na
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mg/kg
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<1.5
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K
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mg/kg
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<1.5
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Al
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mg/kg
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<1.5
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Certifications
Packaging & Shipping
Our Advantages
***10 years export experience
***Fast delivery time: 2 weeks with quantity below500tons.
***OEM packing available
***free sample can be provided
***Free SGS report
1. Reduced Effectiveness: Inferior urea may not havethe same purity or quality standards asautomotive-grade urea. This can result in a lowerconversion efficiency of nitrogen oxide (NOx) emissionsin the selective catalytic reduction (SCR) system. As aresult, the vehicle's emissions may not be effectivelyreduced, potentially leading to environmentalnon-compliance or failing emission standards.
2. Damaged SCR System: Low-quality urea can containimpurities or contaminants that can cause damage to theSCR system components. These impurities can clog orfoul the SCR catalyst, reducing its effectiveness andpotentially leading to costly repairs orreplacements.
3. Increased Maintenance Costs: Inferior urea can leadto more frequent clogging or malfunctioning of the SCRsystem, requiring more frequent maintenance andcleaning procedures. This can result in increasedmaintenance costs and downtime for the vehicle.
4. Risk of Engine Performance Issues: Poor-quality ureamay contain higher levels of impurities that canadversely affect the engine's performance. This canresult in decreased fuel efficiency, power loss, orother engine-related issues, reducing
overall vehicle performance.
5. Release of Harmful Emissions: If impure urea isused, it can lead to the release of harmful ammonia(NH3) or other byproducts into the exhaust system.These emissions can contribute to air pollution andnegate the purpose of using SCR technology to reduceharmful emissions.
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Further reading---
The market for DEF is beingcreated due to the new emission requirements promulgated bythe EPA to meet the most recent Clean Air Act specifications.As depicted below the progressive reduction in dieselemissions has driven tremendous changes in enginerequirements over the past 15 years. These efforts have beenfocused on reducing particulates, S, and NOX emissions. DEFis focused on meeting the 2010 requirement for NOX emissionsreductions.
The specific approach used toreduce NOX emissions requiring DEF is referred to as SCR orSelective Catalytic Reduction. SCR uses a chemical calledDiesel Exhaust Fluid (DEF / Urea) and a SCR catalyticconverter to significantly reduce nitrogen oxide (NOx)emissions in dieselengines.
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