Carbon dioxide hydrogenation over Fe-Ce catalysts

被引：69

作者：

Perez-Alonso, F. J. ^{[1
]}

Ojeda, M. ^{[1
]}

Herranz, T. ^{[1
]}

Rojas, S. ^{[1
]}

Gonzalez-Carballo, J. M. ^{[1
]}

Terreros, P. ^{[1
]}

Fierro, J. L. G. ^{[1
]}

机构：

[1] CSIC, Inst Catalisis & Petr Quim, Madrid 28049, Spain

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 09期

关键词：

Fe; Ce; CO2; hydrogenation; Fischer-Tropsch;

D O I：

10.1016/j.catcom.2008.03.024

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：

Unpromoted and Ce-promoted Fe catalysts were tested in the CO2 hydrogenation reaction. Both catalysts form predominantly CO and hydrocarbons (C-1-C-10). Reaction rate and selectivity to the different products were essentially the same with both catalysts. The chain growth probability (alpha) was very similar in both cases (similar to 0.44). Prior of being used in the CO2 hydrogenation reaction. the catalysts were used in CO hydrogenation until the stationary state was established. It was found that the Ce incorporation into the iron catalyst does not alter its final performance but it shortens the time required to reach stationary-state operation conditions. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1945 / 1948

页数：4

共 13 条

[1]

Eliasson B., 1999, GREENHOUSE GAS CONTR

[2] Genesis of iron carbides and their role in the synthesis of hydrocarbons from synthesis gas [J].

Herranz, Tirma ;

Rojas, Sergio ;

Perez-Alonso, Francisco J. ;

Ojeda, Manuel ;

Terreros, Pilar ;

Fierro, Jose Luis G. .

JOURNAL OF CATALYSIS, 2006, 243 (01) :199-211

[3] A comparative study of water-gas-shift reaction over ceria supported metallic catalysts [J].

Hilaire, S ;

Wang, X ;

Luo, T ;

Gorte, RJ ;

Wagner, J .

APPLIED CATALYSIS A-GENERAL, 2001, 215 (1-2) :271-278

[4] Design, synthesis, and use of cobalt-based Fischer-Tropsch synthesis catalysts [J].

Iglesia, E .

APPLIED CATALYSIS A-GENERAL, 1997, 161 (1-2) :59-78

[5] Pathways for CO2 formation and conversion during Fischer-Tropsch synthesis on iron-based catalysts [J].

Krishnamoorthy, S ;

Li, AW ;

Iglesia, E .

CATALYSIS LETTERS, 2002, 80 (1-2) :77-86

[6]

Malin CB, 1998, OIL GAS J, V96, P33

[7] Evolution of the bulk structure and surface species on Fe-Ce catalysts during the Fischer-Tropsch synthesis [J].

Perez-Alonso, F. J. ;

Herranz, T. ;

Rojas, S. ;

Ojeda, M. ;

Lopez Granados, M. ;

Terreros, P. ;

Fierro, J. L. G. ;

Gracia, M. ;

Gancedo, J. R. .

GREEN CHEMISTRY, 2007, 9 (06) :663-670

[8] Relevance in the Fischer-Tropsch synthesis of the formation of Fe-O-Ce interactions on iron-cerium mixed oxide systems [J].

Perez-Alonso, F. J. ;

Granados, M. Lopez ;

Ojeda, M. ;

Herranz, T. ;

Rojas, S. ;

Terreros, P. ;

Fierro, J. L. G. ;

Gracia, M. ;

Gancedo, J. R. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (47) :23870-23880

[9] Chemical structures of coprecipitated Fe-Ce mixed oxides [J].

Pérez-Alonso, FJ ;

Granados, ML ;

Ojeda, M ;

Terreros, P ;

Rojas, S ;

Herranz, T ;

Fierro, JLG ;

Gracia, M ;

Gancedo, JR .

CHEMISTRY OF MATERIALS, 2005, 17 (09) :2329-2339

[10] Fischer-Tropsch on iron with H2/CO and H2/CO2 as synthesis gases:: the episodes of formation of the Fischer-Tropsch regime and construction of the catalyst [J].

Riedel, T ;

Schulz, H ;

Schaub, G ;

Jun, KW ;

Hwang, JS ;

Lee, KW .

TOPICS IN CATALYSIS, 2003, 26 (1-4) :41-54

← 1 2 →