The world needs to protect the environment, including
air quality, vital to our health.

NOx (nitrogen oxides) are among the main substances causing damages to the Environment. Efforts on the development of technologies capable of effectively reducing these compounds have been made, considering viable, technical and economical points of view.

The combined use of SCR (Selective Catalytic Reduction) converters and HANIER ARLA 32 is a key technology
for the reduction of NOx emissions from diesel engines,
for there is no other technology as efficient, cheap
and safe.




What is DEF?

DEF is a liquid reactive, formed of a 32.5%
ultra-pure urea base and deionized water.

What is it used for?

To reduce chemically NOx (nitrogen oxides) emissions,
through the conversion of NOx to nitrogen and water vapor.


How does it work?

Diesel working engines produce combustion gases,
exhausted at 180°C. HANIER’S ARLA 32 is injected
before the catalyzer, being converted to ammoniac.
The gas blend containing ammoniac passes through
the catalyzer, where there is a conversion of NOx to
nitrogen and water vapor.



Is HANIER´s ARLA 32 recognized by
regulatory agencies (INMETRO) ?

Yes, as evidenced by the quality stamp printed on
the product’s label, where the words “Meio Ambiente,
n° registro, compulsório” (Environment, registry number, compulsory, in Portuguese) can be seen. This stamp
guarantees quality standards are met by the manufacturer.
In the absence of this stamp, the certificate can be lost
and the manufacturer precluded from marketing DEF.

INMETRO is a national governmental entity responsible
for guaranteeing that products offered to Brazilian society
meet adequate standards. It regulates the certification
and auditing of manufacturers of DEF (according to Portaria 139, from March 21st, 2011), and inspects final products, imposing sanctions to infractors disrespecting ISO 22241.


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