This solution is a non-toxic liquid utilized in Selective Catalytic Reduction (SCR) systems found on diesel engines. These systems are designed to reduce harmful nitrogen oxide (NOx) emissions. It is composed of purified water and urea, typically in a concentration of 32.5%. The fluid is injected into the exhaust stream, where it reacts with NOx over a catalyst to form nitrogen and water, significantly decreasing pollution.
The adoption of this fluid is driven by increasingly stringent environmental regulations aimed at curbing air pollution from diesel vehicles. Its use contributes to improved air quality and reduced health risks associated with NOx emissions. Early development and implementation were crucial for meeting emissions standards set by government agencies worldwide, impacting the design and operation of modern diesel engines.
