What is inferior urea?

Inferior urea is a class of products with many impurities, whose quality does not meet the quality standards of automotive urea solution.

1. The most common content of impurities are biuret, aldehydes and insolubles, which will block the SCR system and damage the nozzles, filters and other parts.

2. In addition, the metal ions in the impurities have a toxic effect on the catalyst of the SCR system, which affects the efficiency of catalytic reduction. This damage is irreversible.

3. In the end, the deposits generated after the burning of the inferior urea solution not only cause blockage, but also reduce the life of the catalyst. And the low concentration of urea solution will also affect the conversion rate of nox, which lead the fast consumption of the urea solution. At the same time, the crystallization point of the urea solution is unstable, which will also block the pipes, nozzles and urea pump.

Poor quality urea crystals block the exhaust pipe:

Introduction of urea granules

Urea particles are divided into agricultural urea particles and automotive urea particles:

- Different appearance, different impurity content and different uses.

- Agricultural urea has large particles, mixed colors, and is difficult to crush. It is used to fertilize crops and has high impurity content.

- Automotive urea particles are small, mostly pure white color, easy to crush, mixed with deionized water to make SCR urea solution.

The automotive urea particles have a low impurity content, which meets the production standards of urea solutions. They are mixed with ultrapure water to produce high-purity urea solutions for SCR system. The detection concentration is 32.5%, which can be used to oxidize nitrogen in the exhaust gas of diesel engines. The substance produces a chemical reaction and is converted into non-toxic and harmless nitrogen and water, thereby achieving the purpose of protecting the environment.

All the urea we use for AdBlue production is Automotive Grade Urea with a high quality to provide you the best finshed product .

Please feel free to contact use for more information.