Preparation of ammonia from liquid AdBlue–modeling approaches and future challenges

T Lauer - Chemie Ingenieur Technik, 2018 - Wiley Online Library
Sustainable mobility is a legal and public demand. An important measure to clean the
exhaust gas of diesel engines is the conversion of nitric oxides with selective catalytic …

Detailed modeling of the evaporation and thermal decomposition of urea‐water solution in SCR systems

V Ebrahimian, A Nicolle, C Habchi - AIChE Journal, 2012 - Wiley Online Library
This work is aimed to develop a multicomponent evaporation model for droplets of urea‐
water solution (UWS) and a thermal decomposition model of urea for automotive exhausts …

Numerical study of bischofite precursor droplet evaporation and thermal decomposition for spray pyrolysis systems

H Xu, D Cheng, L Zhao, H Dong, B Liu - Chemical Engineering Science, 2025 - Elsevier
Understanding the evaporation and decomposition process of bischofite precursor droplets
in a pyrolysis furnace is the prerequisite for designing an efficient spray bischofite treatment …

Catalytic urea hydrolysis in the selective catalytic reduction of NO x: catalyst screening and kinetics on anatase TiO 2 and ZrO 2

AM Bernhard, D Peitz, M Elsener… - Catalysis Science & …, 2013 - pubs.rsc.org
The catalytic hydrolysis of urea was investigated under conditions relevant for the selective
catalytic reduction of NOx (urea-SCR). The hydrolysis activities of the tested catalysts coated …

Predicting the evaporation and decomposition of aqueous urea droplets in hot gas streams for SCR system design: A critical review

T Eldredge, H Medina, N Hertzler - Thermal Science and Engineering …, 2024 - Elsevier
Selective catalytic reduction (SCR) systems are essential for post combustion nitrogen oxide
(NO x) emissions control for both stationary and mobile sources. Aqueous urea is a …

Kinetic modeling of urea decomposition and byproduct formation

K Krum, R Patil, H Christensen, H Hashemi… - Chemical Engineering …, 2021 - Elsevier
A kinetic model for urea decomposition and byproduct formation was developed and
validated against thermogravimetric analyses (TGA) of urea and urea-derived byproducts …

Numerical analysis of ammonia homogenization for selective catalytic reduction application

J Baleta, M Martinjak, M Vujanović, K Pachler… - Journal of environmental …, 2017 - Elsevier
Selective catalytic reduction based on urea water solution as ammonia precursor is a
promising method for the NO x abatement form exhaust gasses of mobile diesel engine …

Splashing characteristics of diesel exhaust fluid (AdBlue) droplets impacting on urea-water solution films

A Terzis, M Kirsch, V Vaikuntanathan, A Geppert… - … Thermal and Fluid …, 2019 - Elsevier
The rapid implementation of Selective-Catalytic-Reduction (SCR) technologies into light
passenger and commercial vehicles, led to the omission of fundamental research creating …

Advanced spray impingement modelling for an improved prediction accuracy of the ammonia homogenisation in SCR systems

H Smith, M Zöchbauer, T Lauer - 2015 - sae.org
A fast preparation of the liquid urea water solution (UWS) is necessary to ensure high
conversion rates in exhaust aftertreatment systems based on Selective Catalytic Reduction …

Urea-related reactions and their active sites over Cu-SAPO-34: formation of NH3 and conversion of HNCO

Y Ma, X Wu, J Zhang, R Ran, D Weng - Applied Catalysis B: Environmental, 2018 - Elsevier
Urea-SCR is an efficient method to reduce NO x emission from diesel vehicles, but the active
sites of Cu-SAPO-34 for urea-related reactions have not been well identified. In the present …