AdBlue, also known as Diesel Exhaust Fluid (DEF), plays a critical role in reducing harmful nitrogen oxide emissions from diesel engines. To ensure its efficacy and prevent damage to catalytic reduction systems, the urea content in AdBlue must meet precise standards, as specified by ISO 22241. Each batch of AdBlue is required to have a urea content of 32.5%, with tolerances of 31.8% to 33.3%.
Traditional refractive index methods offer a comparison-based analysis for determining urea levels. However, Skalar's PRIMACS™ SNC-100 TOC/TN analyzer has elevated the process by employing a combustion-based approach. This advanced method delivers precise and immediate results for urea measurement, ensuring accuracy and compliance.
Using the PRIMACS™ SNC-100, AdBlue samples are combusted in pure oxygen at 1100°C. Nitrogen present in the sample is converted to NxOy, and subsequently reduced to N2 in a specialized furnace. The nitrogen gas is then quantified using Thermal Conductivity Detection (TCD). This robust process aligns perfectly with ISO 22241, ensuring reliable results and safeguarding diesel engines from potential impurities.
With Skalar's state-of-the-art technology, manufacturers can confidently meet stringent quality standards, securing the performance and longevity of diesel systems. Interested in learning more about how the PRIMACS™ SNC-100 can enhance your AdBlue production? Visit our website or contact us for details.
