NO conversion using binary vanadium mixtures supported on activated carbon

Sónia A. Carabineiro; F. Brás Fernandes; Joaquim S. Vital; Ana M. Ramos; Isabel M. Fonseca

doi:10.1016/S0926-3373(03)00064-X

NO conversion using binary vanadium mixtures supported on activated carbon

Sónia A. Carabineiro, F. Brás Fernandes, Joaquim S. Vital, Ana M. Ramos, Isabel M. Fonseca

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

The kinetics of the reaction of NO with activated carbon without catalyst and impregnated with precursor salts of Ba, Co, Cu, Fe, Mg, Mn, Ni and Pb were investigated. Binary mixtures of those metals with V were also studied. The conversion of NO was studied (300-900°C) using a TGA apparatus and a fixed bed reactor. The reactor effluents were analysed using a GC/MS on line and showed the presence of N₂O, N₂, CO₂ and CO together with some unreacted NO. The best synergetic effects were observed for samples doped with V + Cu and V + Fe mixtures. This synergetic effect observed with addition of vanadium seems to be related with its ability to wet and spread on carbon surface and with enhancement of oxygen-carbon complexes on carbon surface increasing CO₂ evolution, thus generating new active sites.

Original language	English
Pages (from-to)	227-235
Number of pages	9
Journal	Applied Catalysis B: Environmental
Volume	44
Issue number	3
DOIs	https://doi.org/10.1016/S0926-3373(03)00064-X
Publication status	Published - 30 Aug 2003

Keywords

Catalysis
Kinetics
NO carbon gasification
X-ray diffraction

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title = "NO conversion using binary vanadium mixtures supported on activated carbon",

abstract = "The kinetics of the reaction of NO with activated carbon without catalyst and impregnated with precursor salts of Ba, Co, Cu, Fe, Mg, Mn, Ni and Pb were investigated. Binary mixtures of those metals with V were also studied. The conversion of NO was studied (300-900°C) using a TGA apparatus and a fixed bed reactor. The reactor effluents were analysed using a GC/MS on line and showed the presence of N2O, N2, CO2 and CO together with some unreacted NO. The best synergetic effects were observed for samples doped with V + Cu and V + Fe mixtures. This synergetic effect observed with addition of vanadium seems to be related with its ability to wet and spread on carbon surface and with enhancement of oxygen-carbon complexes on carbon surface increasing CO2 evolution, thus generating new active sites.",

keywords = "Catalysis, Kinetics, NO carbon gasification, X-ray diffraction",

author = "Carabineiro, {S{\'o}nia A.} and Fernandes, {F. Br{\'a}s} and Vital, {Joaquim S.} and Ramos, {Ana M.} and Fonseca, {Isabel M.}",

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T1 - NO conversion using binary vanadium mixtures supported on activated carbon

AU - Carabineiro, Sónia A.

AU - Fernandes, F. Brás

AU - Vital, Joaquim S.

AU - Ramos, Ana M.

AU - Fonseca, Isabel M.

PY - 2003/8/30

Y1 - 2003/8/30

N2 - The kinetics of the reaction of NO with activated carbon without catalyst and impregnated with precursor salts of Ba, Co, Cu, Fe, Mg, Mn, Ni and Pb were investigated. Binary mixtures of those metals with V were also studied. The conversion of NO was studied (300-900°C) using a TGA apparatus and a fixed bed reactor. The reactor effluents were analysed using a GC/MS on line and showed the presence of N2O, N2, CO2 and CO together with some unreacted NO. The best synergetic effects were observed for samples doped with V + Cu and V + Fe mixtures. This synergetic effect observed with addition of vanadium seems to be related with its ability to wet and spread on carbon surface and with enhancement of oxygen-carbon complexes on carbon surface increasing CO2 evolution, thus generating new active sites.

AB - The kinetics of the reaction of NO with activated carbon without catalyst and impregnated with precursor salts of Ba, Co, Cu, Fe, Mg, Mn, Ni and Pb were investigated. Binary mixtures of those metals with V were also studied. The conversion of NO was studied (300-900°C) using a TGA apparatus and a fixed bed reactor. The reactor effluents were analysed using a GC/MS on line and showed the presence of N2O, N2, CO2 and CO together with some unreacted NO. The best synergetic effects were observed for samples doped with V + Cu and V + Fe mixtures. This synergetic effect observed with addition of vanadium seems to be related with its ability to wet and spread on carbon surface and with enhancement of oxygen-carbon complexes on carbon surface increasing CO2 evolution, thus generating new active sites.

KW - Catalysis

KW - Kinetics

KW - NO carbon gasification

KW - X-ray diffraction

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SP - 227

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JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

IS - 3

ER -

NO conversion using binary vanadium mixtures supported on activated carbon

Abstract

Keywords

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