Selective Transformation of Various Nitrogen-Containing Exhaust Gases toward N2 over Zeolite Catalysts

R Zhang, N Liu, Z Lei, B Chen - Chemical reviews, 2016 - ACS Publications
In this review we focus on the catalytic removal of a series of N-containing exhaust gases
with various valences, including nitriles (HCN, CH3CN, and C2H3CN), ammonia (NH3) …

Probing zeolites by vibrational spectroscopies

S Bordiga, C Lamberti, F Bonino, A Travert… - Chemical Society …, 2015 - pubs.rsc.org
This review addresses the most relevant aspects of vibrational spectroscopies (IR, Raman
and INS) applied to zeolites and zeotype materials. Surface Brønsted and Lewis acidity and …

Effect of zeolite topology on NH3-SCR activity and stability of Cu-exchanged zeolites

KA Tarach, M Jabłońska, K Pyra, M Liebau… - Applied Catalysis B …, 2021 - Elsevier
The catalytic activity and stability of Cu-exchanged zeolites Cu-ZSM-5 (MFI topology), Cu-
TNU-9 (TUN), Cu-FER (FER) and steamed Cu-Y (FAU) were evaluated in the selective …

Location and nature of Cu species in Cu/SAPO-34 for selective catalytic reduction of NO with NH3

L Wang, W Li, G Qi, D Weng - Journal of Catalysis, 2012 - Elsevier
Cu/SAPO-34 catalysts have been reported to show much improved activities and durability
for selective catalytic reduction (SCR) of NOx. In this work, we examined the nature of Cu …

Investigation on the effects of non-uniform porosity catalyst on SCR characteristic based on the field synergy analysis

Z Zhang, J Ye, J Lv, W Xu, D Tan, F Jiang… - Journal of Environmental …, 2022 - Elsevier
Selective catalytic reduction catalyst was commonly used in the denitrification of exhaust
from the internal combustion engine. In the paper, a three-dimensional mathematical model …

NH3-SCR over Cu/SAPO-34–Zeolite acidity and Cu structure changes as a function of Cu loading

D Wang, L Zhang, J Li, K Kamasamudram, WS Epling - Catalysis Today, 2014 - Elsevier
A series of SAPO-34 catalysts with various Cu loadings (ranging 0.7–3.0 wt%) were
prepared by the solid state ion exchange method (SSIE) and the acid properties of the …

Experimental and kinetic modeling study of NH3-SCR of NOx on Fe-ZSM-5, Cu-chabazite and combined Fe-and Cu-zeolite monolithic catalysts

PS Metkar, MP Harold, V Balakotaiah - Chemical engineering science, 2013 - Elsevier
A comprehensive experimental and modeling study of selective catalytic reduction of NOx
with NH3 was carried out on Fe-ZSM-5 and Cu-chabazite (CHA) catalysts. The experiments …

Overview of the practically important behaviors of zeolite-based urea-SCR catalysts, using compact experimental protocol

K Kamasamudram, NW Currier, X Chen, A Yezerets - Catalysis Today, 2010 - Elsevier
Selective catalytic reduction with NH3 (NH3-SCR technology), based on V2O5/WO3/TiO2
catalysts, has been previously commercialized for abating NOx emissions from various …

An overview of after-treatment systems for diesel engines

AS Ayodhya, KG Narayanappa - Environmental Science and Pollution …, 2018 - Springer
Vehicular pollution has become a major problem in urban areas due to the exponential rise
in the number of automobiles. Typical exhaust emissions which include nitrogen oxides (NO …

A multi-site kinetic model for NH3-SCR over Cu/SSZ-13

L Olsson, K Wijayanti, K Leistner, A Kumar… - Applied Catalysis B …, 2015 - Elsevier
In this study, we have developed a kinetic model for ammonia-SCR over a well-
characterized Cu/SSZ-13 catalyst. It was found that a three-site model was needed in order …