Titre :

Cenixal0. 5hzoy nano-oxyhydrides for h-2 production by oxidative dry reforming of ch4 without carbon formation

Auteur(s) :

Wei, Yaqian [Auteur]
Liu, Xiu [Auteur]
Haidar, Noura [Auteur]
Jobic, Herve [Auteur]
PAUL, Sébastien [Auteur]
Centrale Lille
Jalowiecki-Duhamel, Louise [Auteur]

Titre de la revue :

Applied catalysis. A, General

Nom court de la revue :

Appl. Catal. A-Gen.

Numéro :

594

Date de publication :

2020-03-25

ISSN :

0926-860X

Mot(s)-clé(s) en anglais :

Hydrogen
Nickel
Ceria
CO2
CH4
Oxyhydride

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

The oxidative dry reforming of CH4 (ODRM) was studied at 500−800 °C in harsh conditions (CH4/CO2/O2/N2  = 1:0.7:α:N2 with 20 % of CH4, 96,000 mLh−1gcat−1 and α varying from 0 up to 0.5) on CeNiXAl0.5HZOY (0.5 ≤ x ≤ 5) ...
Lire la suite >The oxidative dry reforming of CH4 (ODRM) was studied at 500−800 °C in harsh conditions (CH4/CO2/O2/N2  = 1:0.7:α:N2 with 20 % of CH4, 96,000 mLh−1gcat−1 and α varying from 0 up to 0.5) on CeNiXAl0.5HZOY (0.5 ≤ x ≤ 5) nano-oxyhydride catalysts. At low temperature (500−600 °C), the conversion of CH4 reaches the thermodynamic limit while those of CO2 overcomes the predicted value in particular at 500 °C. At 600 °C with an O2/CH4 ratio of 0.3, the CeNi2Al0.5HZOY catalyst allows getting CH4 and CO2 conversions of about 63 % and 50 %, respectively, and a H2/CO ratio of about 1.3, without carbon formation. The physico-chemical characterizations performed before and after test show the existence of strong interactions existing between Ni2+ cations with other cations and the presence of nano-oxyhydride compound. The mixed oxide based nano-materials corresponding to hydride reservoirs with the presence of Ni2+ cations are shown to be highly active, selective and stable catalysts.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

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

Équipe(s) de recherche :

Valorisation des alcanes et de la biomasse (VAALBIO)

Date de dépôt :

2022-03-02T07:14:31Z