What is Automotive Grade Urea

Automotive grade urea is a high-purity urea solution essential for producing Diesel Exhaust Fluid (DEF), also known as AdBlue, which reduces nitrogen oxide (NOx) emissions in diesel engines.

Automotive grade urea is a key raw material used in the production of AdBlue (also known as DEF or AUS 32), a solution designed to reduce harmful NOx emissions from diesel vehicles. It is characterized by its high purity, low biuret content, and absence of aldehydes, making it suitable for use in selective catalytic reduction (SCR) systems in diesel engines.

Specifications and Standards
ISO 22241 Compliance: Automotive grade urea must meet the ISO 22241 standard, which specifies the purity and quality required for effective NOx reduction. This includes being free from contaminants such as heavy metals and formaldehyde.

Production Process: The production of automotive grade urea involves purifying industrial-grade urea through processes like filtration and dehydration to ensure it meets the stringent requirements for DEF production.

Applications
Diesel Exhaust Fluid (DEF): When injected into the exhaust system of diesel vehicles, DEF reacts with NOx emissions, converting them into harmless nitrogen and water vapor. This process can neutralize up to 98% of NOx emissions, significantly reducing air pollution.

Environmental Regulations: The increasing demand for automotive grade urea is driven by stricter emissions regulations, such as the EURO 5 norm, which mandates lower NOx emissions from diesel engines.

Benefits of Automotive Grade Urea
High Purity: Ensures optimal performance in SCR systems, preventing damage and maintaining efficiency.
Environmental Impact: Plays a crucial role in meeting environmental standards and reducing the carbon footprint of diesel vehicles.

Conclusion
Automotive grade urea is vital for modern diesel engines, ensuring compliance with environmental regulations while effectively reducing harmful emissions. Its production and quality control are critical for maintaining the performance of SCR systems, making it an essential component in the automotive industry. For manufacturers and suppliers, adhering to ISO standards is crucial for delivering high-quality DEF products.