• search hit 2 of 2
Back to Result List

Investigations on the Liquid-Phase Decomposition of AdBlue Urea for the Selective Catalytic Reduction Process

  • Difficulties in decomposing AdBlue to ammonia limit the applicability of selective catalytic reduction systems at low exhaust temperatures. Investigations on the decomposition of AdBlue in the liquid phase under elevated pressure at temperatures up to 165 degrees C were carried out. Besides effects of inorganic catalysts, the impact of pH on urea decomposition was examined. After dissolution in aqueous phase, the compounds ZnO, WO3, and MoO3 were found to be effective in liquid-phase AdBlue decomposition. However, the efficiency was dropping significantly over few hours. Decomposition of AdBlue urea was also found to be favored for alkaline and acidic conditions.

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics
Metadaten
Author:Peter Braun, Hans-Peter Rabl, Frank-Michael Matysik
DOI:https://doi.org/10.1002/cite.201800055
Parent Title (English):Chemie Ingenieur Technik
Publisher:Wiley
Document Type:Article
Language:English
Year of first Publication:2019
Release Date:2022/01/31
Tag:AdBlue urea; Ammonia; DeNO(x); EMISSIONS; HYDROLYSIS; KINETICS; LOW-TEMPERATURE SCR; Liquid-phase decomposition; MODEL; NOX; Selective catalytic reduction
Volume:91
Issue:7
First Page:961
Last Page:968
Institutes:Fakultät Maschinenbau
Fakultät Maschinenbau / Combustion Engines and Emissions Control Laboratory (CEEC)
Begutachtungsstatus:peer-reviewed
research focus:Energie und Mobilität
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG