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Diesel exhaust treatment fluid, often referred to as diesel exhaust aftertreatment fluid or urea solution, is a liquid used to reduce nitrogen oxide (NOx) emissions from diesel engine exhaust. The most common Diesel Exhaust treatment Fluid is the urea aqueous solution used in Selective Catalytic Reduction (SCR) systems, commonly referred to as AdBlue (in Europe) or DEF (Diesel Exhaust Fluid, in North America).
|
Storage Temperature |
≤10'C |
<25°C |
<30°C |
≤35℃ |
|
Expiration Date |
36 months |
18months |
12months |
6months |
The main components of diesel engine exhaust gas treatment fluid
Urea: A colorless, odorless compound with the formula CO(NH2)2.
Deionized water: High purity water that removes minerals and impurities.
Injection system: diesel exhaust gas treatment liquid is injected into the exhaust pipe through the injection system.
Decomposition: Under high temperature conditions, urea decomposes to form ammonia (NH3) and carbon dioxide (CO2).
Reduction reaction: Ammonia reacts with nitrogen oxides (NOx) in exhaust gas to generate harmless nitrogen (N2) and water (H2O), thereby reducing NOx emissions.
Environmental protection: Significantly reduces nitrogen oxide emissions, helping to reduce air pollution and acid rain formation.
Regulatory compliance: Meet stringent emission standards (such as Euro VI in Europe and EPA 2010 in North America).
Improved fuel efficiency: SCR systems can optimize the combustion efficiency of diesel engines and reduce fuel consumption.
Storage conditions: Urea solutions are temperature sensitive and should be stored in a cool, dry place away from direct sunlight and extreme temperatures (above 30°C or below -11°C).
purity requirement：Use a high purity urea solution to avoid damage to the SCR system.
Regular inspection: The urea solution is checked and replenished regularly to ensure the normal operation of the SCR system.
Urea Liquid is widely used in various applications, including:
Commercial Vehicles: Trucks, buses, and other heavy-duty vehicles equipped with diesel engines.
Agricultural Machinery: Tractors and other farming equipment.
Construction Equipment: Bulldozers, excavators, and other machinery used in construction projects.
Marine Engines: Ships and boats with diesel propulsion systems.
Diesel exhaust treatment fluids are widely used in modern diesel engines to help achieve cleaner and more environmentally friendly emission standards.
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