Sentences with phrase «aqueous urea»

Note also, however, that the Passat Alltrack does require an aqueous urea solution, such as AdBlue, to be added at regular intervals.

First there's the oxidising catalyst, then there's the particulate filter to make sure there are no big bad black PR clouds coming out of the back, and finally there's a special catalytic converter where small quantities of an aqueous urea (stop giggling) solution called AdBlue are injected.

The method uses an aqueous urea solution bearing the tradename «AdBlue» to convert the NOx into harmless nitrogen via various chemical reactions in a special SCR (selective reduction) catalyst that has been optimized for NOx reduction.

Two doctoral students in Bach's team are currently investigating various AdBlue injection procedures with a view to achieving the most optimal nebulization and homogenous distribution of the aqueous urea solution in the exhaust gas.