AQUEOUS UREA SOLUTION (SHELL)
DEF is a urea-based chemical reactant designed specifically
for use in SCR systems to reduce NOx emissions.
DEF is prepared by dissolving solid high purity urea in
deionized water to create a 32.5% solution in water.
DEF and similar urea-based products are widely used today for
a variety of agricultural and industrial needs.
DEF meets ISO22241 specifications for purity
and composition, while being:
Non-toxic and non-polluting
Stable and colorless
Does not require special handling
DEF should be stored in a cool, dry, well-ventilated
area, out of direct sunlight. While the optimum
storage temperature is up to 25°C, temporary
exposure to higher temperatures has little to no
impact on the quality of DEF.
In order to meet the latest emission standards and the
needs of customers, engine manufacturers have been investing
in new and innovative technologies. One technology being used to
achieve the emission goals is SCR (Selective Catalytic Reduction).
This proven aftertreatment technology enables the engine to be
fully optimised for performance and fuel economy.