INTEQUI   20941
INSTITUTO DE INVESTIGACIONES EN TECNOLOGIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Carbon dioxide reforming of methane over a metal modified Ni-Al2O3 catalyst
Autor/es:
ADOLFO E. CASTRO LUNA; MARÍA E. IRIARTE
Revista:
APPLIED CATALYSIS A-GENERAL
Editorial:
Elsevier
Referencias:
Año: 2008 vol. 343 p. 10 - 15
ISSN:
0926-860X
Resumen:
ABSTRACT
CO2 reforming of methane over modified Ni-Al2O3 was studied. The influence of K, Sn, Mn
and Ca on the behavior of a Ni-Al2O3 catalyst, prepared by a sol-gel method, was studied. For
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
and Ca on the behavior of a Ni-Al2O3 catalyst, prepared by a sol-gel method, was studied. For
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
and Ca on the behavior of a Ni-Al2O3 catalyst, prepared by a sol-gel method, was studied. For
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
2 reforming of methane over modified Ni-Al2O3 was studied. The influence of K, Sn, Mn
and Ca on the behavior of a Ni-Al2O3 catalyst, prepared by a sol-gel method, was studied. For
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.
2O3 catalyst, prepared by a sol-gel method, was studied. For
this purpose, catalytic activity and its resistance to coking were measured. The unmodified
catalyst showed its effectiveness in the dry reforming reaction of methane with low carbon
deposition and high and constant catalytic activity during over 30 hours of operation. The
introduction of 0.5% w/w of the above mentioned metals showed, for the case of the Kmodified
catalyst, compared to the original catalyst, constant but slightly less activity, and a
lower carbon deposition after the same operation period. In the case of Ca, Mn and Sn, a
dramatic reduction of catalytic activity and a significant increase in carbon deposition were
observed during the period of time under study.