Title :

What News in the Surface Chemistry of Bulk and Supported Vanadia Based SCR-Catalysts: Improvements in Their Resistance to Poisoning and Thermal Sintering

Author(s) :

Granger, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Siaka, Hermann W. [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Umbarkar, Shubhangi B. [Auteur]
Council of Scientific and Industrial Research [India] [CSIR]

Journal title :

The Chemical Record

Volume number :

19

Pages :

1813-1828

Publisher :

Wiley

Publication date :

2019-09

English keyword(s) :

SCR-catalysts
benchmark V2O5−WO3/TiO2
poisoning
N2O selectivity

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

This paper reports a short review on the impact of poisoning effects and thermal aging on the reactivity of surface vanadate species on benchmark V2O5−WO3/TiO2 Selective‐Catalytic‐Reduction catalysts. A renewed interest ...
Show more >This paper reports a short review on the impact of poisoning effects and thermal aging on the reactivity of surface vanadate species on benchmark V2O5−WO3/TiO2 Selective‐Catalytic‐Reduction catalysts. A renewed interest of this SCR technology is related to its diversification notably as after‐treatment systems to treat the exhaust from Diesel engines with higher running temperature especially when SCR catalysts are coated on Diesel Particulates Filters. Particular attention is also paid to poisoning effects in conjunction with the progressive replacement of fossil fuels by bio‐fuels containing alkaline contaminants which drastically deactivate the catalyst through neutralization of strong acid sites. Most of the investigations show that better insight into the mechanisms of poisoning and aging processes is needed especially to understand the relative sensibility of various vanadate species. This could provide original guidelines to catalyst preparation and or the developments of more stable bulk systems as exemplified.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Remédiation et matériaux catalytiques (REMCAT)

Submission date :

2019-09-25T15:07:06Z
2021-02-26T15:57:43Z