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Titolo:
Silicon nitride supported platinum catalysts for the partial oxidation of methane at high temperatures
Autore:
Monnet, F; Schuurman, Y; Aires, FCS; Bertolini, JC; Mirodatos, C;
Indirizzi:
Inst Rech Catalyse, CNRS, UPR, F-69626 Villeurbanne, France Inst Rech Catalyse Villeurbanne France F-69626 9626 Villeurbanne, France
Titolo Testata:
CATALYSIS TODAY
fascicolo: 1-2, volume: 64, anno: 2001,
pagine: 51 - 58
SICI:
0920-5861(20010101)64:1-2<51:SNSPCF>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYNTHESIS GAS; MECHANISM; ALUMINA; SYNGAS; STEPS; H-2; CH4; CO; PD;
Keywords:
partial oxidation; methane; synthesis gas; silicon nitride; platinum; deactivation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Schuurman, Y Inst Rech Catalyse, CNRS, UPR, 2 Ave Albert Einstein, F-69626Villeurbanne, France Inst Rech Catalyse 2 Ave Albert Einstein Villeurbanne France F-69626
Citazione:
F. Monnet et al., "Silicon nitride supported platinum catalysts for the partial oxidation of methane at high temperatures", CATAL TODAY, 64(1-2), 2001, pp. 51-58

Abstract

The catalytic partial oxidation of methane has been studied over platinum silicon nitride supported catalysts in the temperature range of 900-1 100 degreesC at a contact time of 0.35 ms at atmospheric pressures. The feed consisted of a mixture of CH4/O-2/N-2 approximate to 2/1/10. The catalysts were prepared by impregnation of platinum bis-acetyl-acetonate on silicon nitride powder (Si3N4). The different catalysts were characterized by chemical analysis, XPS and TEM. Minor particle sintering occurs during reaction. Metal losses were observed at 900 degreesC, for catalysts containing 1.0 and 2.2 wt% of platinum. A catalyst with a low amount of platinum (0.045 wt.%) appeared to be stable at 900 degreesC, as no platinum loss was observed. Thehigh stability of the 0.045 wt% Pt/Si3N4 catalyst could be attributed to particular interactions between the metal and the support. (C) 2001 ElsevierScience B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/07/20 alle ore 21:37:27