Supported bismuth oxide catalysts for the selective reduction of NO with propene in lean conditions

Dennis E. Sparks; Patricia M. Patterson; Gary Jacobs; Mark Crocker; John A. Chaney

doi:10.1016/j.catcom.2005.09.004

Supported bismuth oxide catalysts for the selective reduction of NO with propene in lean conditions

Dennis E. Sparks, Patricia M. Patterson, Gary Jacobs, Mark Crocker, John A. Chaney

Chemistry

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

7 Scopus citations

Abstract

Bi₂O₃/Al₂O₃ materials were prepared by impregnation of a γ-Al₂O₃ support with bismuth citrate and tested as catalysts for the selective catalytic reduction of NO with propene. Under simulated diesel exhaust gas conditions (500 ppm NO, 10% O₂, 6% H₂O) with 600 ppm propene as reductant, a maximum in NO conversion of 56% was attained at 525°C and a GHSV of ca. 30,000 h^-1. Water significantly inhibited NO reduction by competing for adsorption sites with the propene and/or NO reactants. To correlate NO reduction activity with catalyst composition, the catalysts were characterized using XRD, XPS and N₂ physisorption methods.

Original language	English
Pages (from-to)	122-126
Number of pages	5
Journal	Catalysis Communications
Volume	7
Issue number	3
DOIs	https://doi.org/10.1016/j.catcom.2005.09.004
State	Published - Mar 2006

Bibliographical note

Funding Information:
The authors wish to thank Dr. Gerald Thomas for performing the X-ray diffraction measurements. This research work was supported in part by a grant from the Kentucky Science and Engineering Foundation as per Grant Agreement #KSEF-148-502-04-92 with the Kentucky Science and Technology Corporation.

Keywords

Bismuth
NOx
Propene
Selective catalytic reduction

ASJC Scopus subject areas

Catalysis
General Chemistry
Process Chemistry and Technology

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10.1016/j.catcom.2005.09.004

Cite this

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title = "Supported bismuth oxide catalysts for the selective reduction of NO with propene in lean conditions",

abstract = "Bi2O3/Al2O3 materials were prepared by impregnation of a γ-Al2O3 support with bismuth citrate and tested as catalysts for the selective catalytic reduction of NO with propene. Under simulated diesel exhaust gas conditions (500 ppm NO, 10% O2, 6% H2O) with 600 ppm propene as reductant, a maximum in NO conversion of 56% was attained at 525°C and a GHSV of ca. 30,000 h-1. Water significantly inhibited NO reduction by competing for adsorption sites with the propene and/or NO reactants. To correlate NO reduction activity with catalyst composition, the catalysts were characterized using XRD, XPS and N2 physisorption methods.",

keywords = "Bismuth, NOx, Propene, Selective catalytic reduction",

author = "Sparks, {Dennis E.} and Patterson, {Patricia M.} and Gary Jacobs and Mark Crocker and Chaney, {John A.}",

note = "Funding Information: The authors wish to thank Dr. Gerald Thomas for performing the X-ray diffraction measurements. This research work was supported in part by a grant from the Kentucky Science and Engineering Foundation as per Grant Agreement #KSEF-148-502-04-92 with the Kentucky Science and Technology Corporation.",

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volume = "7",

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AU - Sparks, Dennis E.

AU - Patterson, Patricia M.

AU - Jacobs, Gary

AU - Crocker, Mark

AU - Chaney, John A.

N1 - Funding Information: The authors wish to thank Dr. Gerald Thomas for performing the X-ray diffraction measurements. This research work was supported in part by a grant from the Kentucky Science and Engineering Foundation as per Grant Agreement #KSEF-148-502-04-92 with the Kentucky Science and Technology Corporation.

PY - 2006/3

Y1 - 2006/3

N2 - Bi2O3/Al2O3 materials were prepared by impregnation of a γ-Al2O3 support with bismuth citrate and tested as catalysts for the selective catalytic reduction of NO with propene. Under simulated diesel exhaust gas conditions (500 ppm NO, 10% O2, 6% H2O) with 600 ppm propene as reductant, a maximum in NO conversion of 56% was attained at 525°C and a GHSV of ca. 30,000 h-1. Water significantly inhibited NO reduction by competing for adsorption sites with the propene and/or NO reactants. To correlate NO reduction activity with catalyst composition, the catalysts were characterized using XRD, XPS and N2 physisorption methods.

AB - Bi2O3/Al2O3 materials were prepared by impregnation of a γ-Al2O3 support with bismuth citrate and tested as catalysts for the selective catalytic reduction of NO with propene. Under simulated diesel exhaust gas conditions (500 ppm NO, 10% O2, 6% H2O) with 600 ppm propene as reductant, a maximum in NO conversion of 56% was attained at 525°C and a GHSV of ca. 30,000 h-1. Water significantly inhibited NO reduction by competing for adsorption sites with the propene and/or NO reactants. To correlate NO reduction activity with catalyst composition, the catalysts were characterized using XRD, XPS and N2 physisorption methods.

KW - Bismuth

KW - NOx

KW - Propene

KW - Selective catalytic reduction

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JO - Catalysis Communications

JF - Catalysis Communications

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ER -

Supported bismuth oxide catalysts for the selective reduction of NO with propene in lean conditions

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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