+86 20 26211661

sammi@everblue.com.cn

Diesel Exhaust Fluid Urea Solution

Blog

AdBlue® Diesel Exhaust Fluid DEF

2020-05-11 11:19:33




The need to control toxic emissions from diesel combustion engines is ever-increasing. AdBlue® are being developed to manage the output of poisonous gas like nitrogen oxide(NOx) from engine exhaust systems.


Selective Catalytic Reduction(SCR) is a method of controlling nitrogen oxide emissions. This process requires diesel exhaust fluid, namely AdBlue®, to be injected into the exhaust pipe after the engine to help convert the poisonous NOx into harmless water and nitrogen.

AdBlue® contains water and technical grade urea, a compound of nitrogen. When the fluid gets hot, the water evaporates and the urea converts to ammonia. The ammonia reacts with a special catalyst in the SCR muffler and converts the NOx to nitrogen and water. Special sensors in the tailpipe monitor the amount of NOx being released and adjust the injection of AdBlue® to control the NOx output to required levels.
 
chat Now Please click here for inquiry