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Partial oxidation of methane over Pt-Ru bimetallic catalyst for syngas production
KTH, Skolan för kemivetenskap (CHE), Kemiteknik, Kemisk teknologi.ORCID-id: 0000-0001-9391-7552
KTH, Skolan för kemivetenskap (CHE), Kemiteknik, Kemisk teknologi.
2008 (engelsk)Inngår i: Applied Catalysis A: General, ISSN 0926-860X, E-ISSN 1873-3875, Vol. 348, nr 2, s. 221-228Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A bimetallic catalyst (Pt-Ru 50/50) has been prepared for methane partial oxidation. Total metal load was 1 wt%. The support was alumina mixed with 25 wt% of a ceria-zirconia mixture. This because of the good performances of alumina for such applications and to exploit the oxygen buffer effect of the ceriazirconia system. The catalyst has been prepared by incipient wetness and characterized by means of XRD, BET surface area, TPR/TPO and SEM-EDS analyses. It showed good activity and high selectivity towards CO and H-2, produced in a ratio suitable for Fisher-Tropsch applications. The effect of spatial velocity (GHSV) has been investigated; ramping temperature up and down, some hysteresis has been evidenced, especially at the highest GHSV, mainly caused by thermal effects. Overall, 100% conversion of methane to H-2 and CO at the appropriate syngas ratio (2/1) can achieved easily and with stability.

sted, utgiver, år, opplag, sider
2008. Vol. 348, nr 2, s. 221-228
Emneord [en]
methane, partial oxidation, catalytic, platinum, ruthenium, bimetallic, syngas, hysteresis, activity, synthesis gas, fuel-cells, hydrogen, combustion, h-2, co, temperature, transient, support, pt/ceo2
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-17874DOI: 10.1016/j.apcata.2008.06.044ISI: 000259849600009Scopus ID: 2-s2.0-50649119888OAI: oai:DiVA.org:kth-17874DiVA, id: diva2:335919
Merknad
QC 20100525 QC 20111125Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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