Uncatalyzed and catalyzed NO and N2O reaction using various catalysts and binary barium mixtures supported on activated carbon

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

doi:10.1016/S0920-5861(99)00218-7

Uncatalyzed and catalyzed NO and N₂O reaction using various catalysts and binary barium mixtures supported on activated carbon

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

Research output: Contribution to journal › Conference article

33 Citations (Scopus)

Abstract

The kinetics of the reaction of NO and N₂O with activated carbon, without catalyst, and impregnated with precursor salts of Mg, Mn, Ba, Pb, Cu, Ni, Fe and Co and their binary mixtures was investigated. The conversion of NO and N₂O was studied (300°C-900°C) using a TGA apparatus and a fixed-bed reactor. The reactor effluents were analyzed using a GC/MS on line. The best synergetic effects were observed for samples doped with Ba + Pb, Ba + Fe, Ba + Cu, Ba + Mn, and Cu + Mn. Adsorption of NO and N₂O (20°C-100°C) increased considerably in the presence of catalysts, but binary mixtures had no synergistic effects. In situ XRD was an useful tool for interpreting catalyst behavior and identifying phases during reaction conditions.

Original language	English
Pages (from-to)	559-567
Number of pages	9
Journal	Catalysis Today
Volume	54
Issue number	4
DOIs	https://doi.org/10.1016/S0920-5861(99)00218-7
Publication status	Published - 17 Dec 1999
Event	Proceedings of the 1998 2nd World Congress on Environmental Catalysis 'Environmental Catalysis - Fundamental and Applied NOx Control Studies' - Miami, FL, United States Duration: 15 Nov 1998 → 20 Nov 1998

Keywords

Adsorption
Catalysis
Kinetics
NO reduction
X-ray diffraction

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title = "Uncatalyzed and catalyzed NO and N2O reaction using various catalysts and binary barium mixtures supported on activated carbon",

abstract = "The kinetics of the reaction of NO and N2O with activated carbon, without catalyst, and impregnated with precursor salts of Mg, Mn, Ba, Pb, Cu, Ni, Fe and Co and their binary mixtures was investigated. The conversion of NO and N2O was studied (300°C-900°C) using a TGA apparatus and a fixed-bed reactor. The reactor effluents were analyzed using a GC/MS on line. The best synergetic effects were observed for samples doped with Ba + Pb, Ba + Fe, Ba + Cu, Ba + Mn, and Cu + Mn. Adsorption of NO and N2O (20°C-100°C) increased considerably in the presence of catalysts, but binary mixtures had no synergistic effects. In situ XRD was an useful tool for interpreting catalyst behavior and identifying phases during reaction conditions.",

keywords = "Adsorption, Catalysis, Kinetics, NO reduction, 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, {I. M.}",

note = "S{\'o}nia Carabineiro acknowledges financial support from Funda{\c c}{\~a}o para a Ci{\^e}ncia e Tecnologia, Grant BD1275/95.; Proceedings of the 1998 2nd World Congress on Environmental Catalysis 'Environmental Catalysis - Fundamental and Applied NOx Control Studies' ; Conference date: 15-11-1998 Through 20-11-1998",

year = "1999",

month = dec,

day = "17",

doi = "10.1016/S0920-5861(99)00218-7",

language = "English",

volume = "54",

pages = "559--567",

journal = "Catalysis Today",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Uncatalyzed and catalyzed NO and N2O reaction using various catalysts and binary barium mixtures supported on activated carbon

AU - Carabineiro, Sónia A.

AU - Fernandes, F. Brás

AU - Vital, Joaquim S.

AU - Ramos, Ana M.

AU - Fonseca, I. M.

N1 - Sónia Carabineiro acknowledges financial support from Fundação para a Ciência e Tecnologia, Grant BD1275/95.

PY - 1999/12/17

Y1 - 1999/12/17

N2 - The kinetics of the reaction of NO and N2O with activated carbon, without catalyst, and impregnated with precursor salts of Mg, Mn, Ba, Pb, Cu, Ni, Fe and Co and their binary mixtures was investigated. The conversion of NO and N2O was studied (300°C-900°C) using a TGA apparatus and a fixed-bed reactor. The reactor effluents were analyzed using a GC/MS on line. The best synergetic effects were observed for samples doped with Ba + Pb, Ba + Fe, Ba + Cu, Ba + Mn, and Cu + Mn. Adsorption of NO and N2O (20°C-100°C) increased considerably in the presence of catalysts, but binary mixtures had no synergistic effects. In situ XRD was an useful tool for interpreting catalyst behavior and identifying phases during reaction conditions.

AB - The kinetics of the reaction of NO and N2O with activated carbon, without catalyst, and impregnated with precursor salts of Mg, Mn, Ba, Pb, Cu, Ni, Fe and Co and their binary mixtures was investigated. The conversion of NO and N2O was studied (300°C-900°C) using a TGA apparatus and a fixed-bed reactor. The reactor effluents were analyzed using a GC/MS on line. The best synergetic effects were observed for samples doped with Ba + Pb, Ba + Fe, Ba + Cu, Ba + Mn, and Cu + Mn. Adsorption of NO and N2O (20°C-100°C) increased considerably in the presence of catalysts, but binary mixtures had no synergistic effects. In situ XRD was an useful tool for interpreting catalyst behavior and identifying phases during reaction conditions.

KW - Adsorption

KW - Catalysis

KW - Kinetics

KW - NO reduction

KW - X-ray diffraction

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DO - 10.1016/S0920-5861(99)00218-7

M3 - Conference article

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VL - 54

SP - 559

EP - 567

JO - Catalysis Today

JF - Catalysis Today

SN - 0920-5861

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T2 - Proceedings of the 1998 2nd World Congress on Environmental Catalysis 'Environmental Catalysis - Fundamental and Applied NOx Control Studies'

Y2 - 15 November 1998 through 20 November 1998

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