Effect of the synthesis conditions of Ni/Al2O3 catalysts on the biogas decomposition to produce H2-rich gas and carbon nanofibers

被引:20
作者
de Llobet, S. [1 ]
Pinilla, J. L. [1 ]
Moliner, R. [1 ]
Suelves, I. [1 ]
机构
[1] CSIC, Inst Carboquim, Zaragoza 50018, Spain
关键词
Biogas; Catalytic decomposition; H2-rich gases; Ni-catalysts; Carbon nanofibers; TEMPERATURE-PROGRAMMED-REDUCTION; METHANE DECOMPOSITION; HYDROGEN-PRODUCTION; BIMETALLIC CATALYSTS; FILAMENTOUS CARBON; NICKEL-CATALYSTS; NI; DEACTIVATION; CH4; NANOTUBES;
D O I
10.1016/j.apcatb.2014.10.014
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
The utilization of biogas as carbon source for the co-production of filamentous-like materials and syngas is proposed. Catalysts with different Ni:Al molar ratios, Al2O3 supports and preparation methods were synthesized. The suitability of the catalysts was analyzed considering activity, stability and carbon yield. Catalysts showed a good performance and similar results according to syngas compositions were obtained. However, some differences related to stability over time and carbon yields were detected. TPR analysis and TEM micrographs of the fresh catalysts revealed the presence of two different Ni particles: large Ni particles with low metal support interaction (MSI) that favoured the formation of encapsulating carbon and small Ni particles inserted in the Al2O3 structure with a greater MSI that lead to nanofilamentous carbons formation. Generally both kinds of Ni particles were observed in all catalysts, however their relative abundance was dramatically affected by the Al2O3 employed, the preparation method and the Ni:Al molar ratio. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:457 / 465
页数:9
相关论文
共 52 条
[11]   Catalytic decomposition of biogas to produce hydrogen rich fuels for SI engines and valuable nanocarbons [J].
de Llobet, S. ;
Pinilla, J. L. ;
Moliner, R. ;
Suelves, I. ;
Arroyo, J. ;
Moreno, F. ;
Munoz, M. ;
Monne, C. ;
Camean, I. ;
Ramos, A. ;
Cuesta, N. ;
Garcia, A. B. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (35) :15084-15091
[12]   Tailored synthesis of organised mesoporous aluminas prepared by non-ionic surfactant templating using a Box-Wilson CCF design [J].
de Llobet, S. ;
Puron, H. ;
Pinilla, J. L. ;
Moliner, R. ;
Millan, M. ;
Suelves, I. .
MICROPOROUS AND MESOPOROUS MATERIALS, 2013, 179 :69-77
[13]   CH4 and CO2 partial pressures influence and deactivation study on the Catalytic Decomposition of Biogas over a Ni catalyst [J].
de Llobet, S. ;
Pinilla, J. L. ;
Lazaro, M. J. ;
Moliner, R. ;
Suelves, I. .
FUEL, 2013, 111 :778-783
[14]   Catalytic decomposition of biogas to produce H2-rich fuel gas and carbon nanofibers. Parametric study and characterization [J].
de Llobet, S. ;
Pinilla, J. L. ;
Lazaro, M. J. ;
Moliner, R. ;
Suelves, I. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (08) :7067-7076
[15]   Influence of active metal loading and oxygen mobility on coke-free dry reforming of Ni-Co bimetallic catalysts [J].
Djinovic, Petar ;
Crnivec, Ilja Gasan Osojnik ;
Erjavec, Bostjan ;
Pintar, Albin .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2012, 125 :259-270
[16]   Biogas to syngas by microwave-assisted dry reforming in the presence of char [J].
Dominguez, A. ;
Fernandez, Y. ;
Fidalgo, B. ;
Pis, J. J. ;
Menendez, J. A. .
ENERGY & FUELS, 2007, 21 (04) :2066-2071
[17]   Production of synthetic gasoline and diesel fuel from dry reforming of methane [J].
Er-rbib, Hanaa ;
Bouallou, Chakib ;
Werkoff, Francois .
WHEC 2012 CONFERENCE PROCEEDINGS - 19TH WORLD HYDROGEN ENERGY CONFERENCE, 2012, 29 :156-165
[18]   XRD studies of evolution of catalytic nickel nanoparticles during synthesis of filamentous carbon from methane [J].
Ermakova, MA ;
Ermakov, DY ;
Plyasova, LM ;
Kuvshinov, GG .
CATALYSIS LETTERS, 1999, 62 (2-4) :93-97
[19]   New nickel catalysts for the formation of filamentous carbon in the reaction of methane decomposition [J].
Ermakova, MA ;
Ermakov, DY ;
Kuvshinov, GG ;
Plyasova, LM .
JOURNAL OF CATALYSIS, 1999, 187 (01) :77-84
[20]   Purification of Biogases from Siloxanes by Adsorption: On the Regenerability of Activated Carbon Sorbents [J].
Finocchio, Elisabetta ;
Montanari, Tania ;
Garuti, Gilberto ;
Pistarino, Chiara ;
Federici, Flavio ;
Cugino, Michela ;
Busca, Guido .
ENERGY & FUELS, 2009, 23 (08) :4156-4159