Dry reforming of methane over fluorite-like mixed oxides promoted by Pt

被引：18

作者：

Sazonova, Natalya N. ^{[1
]}

Sadykov, Vladislav A. ^{[1
,2
]}

Bobin, Aleksey S. ^{[1
,2
]}

Pokrovskaya, Svetlana A. ^{[1
,2
]}

Gubanova, Elena L. ^{[1
]}

Mirodatos, Claude ^{[3
]}

机构：

[1] Boreskov Inst Catalysis SB RAS, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

[3] Inst Rech Catalyse, CNRS, F-69626 Villeurbanne, France

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 2009年 / 98卷 / 01期

关键词：

Methane dry reforming; Syngas; Short contact time; Flow system; CATALYSTS; PT/AL2O3; PT/ZRO2;

D O I：

10.1007/s11144-009-0064-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Dry reforming of methane into syngas was studied over complex Pt-promoted fluorite-like oxides (PrCeZrO, GdCeZrO and LaCeZrO) supported on a corundum substrate. Activity and syngas selectivity of these catalysts were found to depend strongly on their composition, pretreatment and reaction conditions. At low temperatures and short contact times, the H(2)/CO ratio in the syngas is below 1 due to a fast reverse water-gas shift reaction. The catalyst performance was found to correlate with the bulk oxygen mobility in complex fluorite-like oxides, which prevents the surface coking.

引用

页码：35 / 41

页数：7

共 11 条

[1] Deactivation and coke accumulation during CO2/CH4 reforming over Pt catalysts [J].

Bitter, JH ;

Seshan, K ;

Lercher, JA .

JOURNAL OF CATALYSIS, 1999, 183 (02) :336-343

[2] CO2 reforming of CH4 [J].

Bradford, MCJ ;

Vannice, MA .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1999, 41 (01) :1-42

[3]

Kroll VCH, 1998, STUD SURF SCI CATAL, V119, P753

[4] Carbon deposition during carbon dioxide reforming of methane -: Comparison between Pt/Al2O3 and Pt/ZrO2 [J].

Nagaoka, K ;

Seshan, K ;

Aika, K ;

Lercher, JA .

JOURNAL OF CATALYSIS, 2001, 197 (01) :34-42

[5] Transient studies of carbon dioxide reforming of methane over Pt/ZrO2 and Pt/Al2O3 [J].

O'Connor, Aisling M. ;

Schuurman, Yves ;

Ross, Julian R. H. ;

Mirodatos, Claude .

CATALYSIS TODAY, 2006, 115 (1-4) :191-198

[6] Pt-supported nanocrystalline ceria-zirconia doped with La, Pr or Gd: Factors controlling syngas generation in partial oxidation/autothermal reforming of methane or oxygenates [J].

Sadykov, V. A. ;

Mezentseva, N. V. ;

Alikina, G. M. ;

Lukashevich, A. I. ;

Borchert, Yu. V. ;

Kuznetsova, T. G. ;

Ivanov, V. P. ;

Trukhan, S. N. ;

Paukshtis, E. A. ;

Muzykantov, V. S. ;

Kuznetsov, V. L. ;

Rogov, V. A. ;

Ross, J. R. H. ;

Kemnitz, E. ;

Mirodatos, C. .

DOPED NANOPOWDERS: SYNTHESIS, CHARACTERISATION APPLICATIONS, 2007, 128 :239-+

[7]

Sadykov V. A., 2006, NEW TOPICS CATALYSIS, P97

[8] Partial oxidation of methane into syngas on Pt-supported mixed oxides: effect of surface/lattice oxygen mobility in complex oxides on the kinetic features of the reaction and performance stability [J].

Sazonova, Natalya N. ;

Sadykov, Vladislav A. ;

Bobin, Aleksey S. ;

Pokrovskaya, Svetlana A. ;

Gubanova, Elena L. ;

Mirodatos, Claude .

REACTION KINETICS AND CATALYSIS LETTERS, 2009, 98 (01) :27-33

[9] Partial oxidation of methane into synthesis gas over a Pt-supported complex fluorite-like oxide: one-channel studies in realistic feeds [J].

Sazonova, Natalya N. ;

Sadykov, Vladislav A. ;

Bobin, Aleksey S. ;

Pokrovskaya, Svetlana A. ;

Gubanova, Elena L. ;

Mirodatos, Claude .

REACTION KINETICS AND CATALYSIS LETTERS, 2009, 98 (01) :19-26

[10]

SAZONOVA NN, REACT KINET CA UNPUB

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