NOx Storage-Reduction (NSR) catalytic process for NOx removal from mobile sources

L RIGHINI - 2014 - politesi.polimi.it
Nowadays lean-burn (eg Diesel fuelled) engines are spreading in the transportation sector,
due to their superior fuel economy and lower CO2 emissions. The main concern related to …

Investigations of lean NOx trap (LNT) regeneration strategies for diesel engines

M Maurer, P Holler, S Zarl, T Fortner, H Eichlseder - 2017 - sae.org
To minimize nitrogen oxide (NOx) as well as carbon monoxide (CO) and hydrocarbon (HC)
emissions to fulfil the new European real driving emissions (RDE) legislation, the LNT …

Experimental investigation of the reduction of NOx species by CO and H2 over Pt–Ba/Al2O3 lean NOx trap systems

I Nova, L Lietti, P Forzatti, F Prinetto, G Ghiotti - Catalysis Today, 2010 - Elsevier
In this paper the reactivity of NOx stored at 350° C onto Pt–Ba/Al2O3 LNT catalyst in the
reduction by H2, CO and CO/H2O mixture is investigated by means of transient experiments …

NSR Technology

JR González-Velasco, R López-Fonseca… - 2018 - books.rsc.org
Diesel and lean-burn engines are attracting more and more attention as they provide better
fuel economy and produce lower CO2 emissions compared to conventional Otto gasoline …

NOX-Trap system development and characterization for diesel engines emission control

M Guyon, P Blanche, C Bert, L Philippe, I Messaoudi - SAE transactions, 2000 - JSTOR
Laboratory and vehicle tests were carried out to investigate behaviour and potentiality of
NOx-trap catalytic system in Diesel conditions. Three main aspects were studied. The first …

Understanding the role of C3H6, CO and H2 on efficiency and selectivity of NOx storage reduction (NSR) process

L Masdrag, X Courtois, F Can, S Royer, E Rohart… - Catalysis today, 2012 - Elsevier
The NOx storage reduction (NSR) process is commonly envisaged for the NOx treatment of
exhaust gas from lean-burn engine vehicles. NOx are firstly stored on the catalyst, which is …

The reduction phase in NOx storage catalysis: Effect of type of precious metal and reducing agent

H Abdulhamid, E Fridell, M Skoglundh - Applied Catalysis B …, 2006 - Elsevier
The effect of different reducing agents (H2, CO, C3H6 and C3H8) on the reduction of stored
NOx over PM/BaO/Al2O3 catalysts (PM= Pt, Pd or Rh) at 350, 250 and 150° C was studied …

Mechanistic Aspects of the Reduction of the Stored NOx by H2 Investigated by Isotopic Labelling Experiments and FTIR Spectroscopy

L Castoldi, R Matarrese, L Lietti, S Morandi, M Daturi - 2018 - books.rsc.org
The NOx storage and reduction (NSR) catalysts, also referred as lean NOx traps (LNTs),
represent a viable solution for the NOx removal from the exhaust gas of lean gasoline and …

NOx removal efficiency and ammonia selectivity during the NOx storage-reduction process over Pt/BaO (Fe, Mn, Ce)/Al2O3 model catalysts. Part II: Influence of Ce and …

N Le Phuc, X Courtois, F Can, S Royer… - Applied Catalysis B …, 2011 - Elsevier
It was previously demonstrated in the first part of this work that NOx storage-reduction
process over Pt/BaO/Al2O3 model catalyst is limited by the reduction step, with ammonia …

Effect of Mg, Ca and Ba on the Pt-catalyst for NOx storage reduction

F Basile, G Fornasari, A Grimandi, M Livi… - Applied Catalysis B …, 2006 - Elsevier
A set of catalysts was prepared to improve the activity of the Ba-Pt/γAl2O3 catalyst in the
NOx storage reduction (NSR), by replacing Ba with Mg or Ca, but maintaining constant the …