Lean-DeNO(x) titania based monolithic catalysts

J Blanco; Ingemar Odenbrand; P Avila; C Knapp

doi:10.1016/S0920-5861(98)00255-7

Lean-DeNO(x) titania based monolithic catalysts

J Blanco, Ingemar Odenbrand, P Avila, C Knapp

Department of Chemical Engineering

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

Abstract

The activity of titania based copper and platinum monolithic catalysts in the reduction of nitrogen oxides was studied with exhaust gases from a Diesel engine injecting fuel as reductant. Combining both catalysts, a two-stage system was designed, studying the influence of the copper catalysts composition on its performance with synthetic gas mixtures. The influence of reactants concentration and operating conditions was also investigated. Taking into account these results, a double-bed system with a cell density of 33 cell cm(-2) (210 c.p.s.i.) was prepared. Linear velocity had a strong influence on the performance of the Pt catalyst and of the double-bed. Two NOx conversion maxima were observed with Pt/TiO2 at 225 degrees C and 350 degrees C operating at 6.6 m s(-1). Promising NOx conversions were achieved in the temperature range 200-450 degrees C. (C) 1998 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	103-108
Journal	Catalysis Today
Volume	45
Issue number	1-4
DOIs	https://doi.org/10.1016/S0920-5861(98)00255-7
Publication status	Published - 1998

Subject classification (UKÄ)

Chemical Engineering

Free keywords

NOx reduction
monolith
hydrocarbon
diesel
platinum
copper oxide

Access to Document

10.1016/S0920-5861(98)00255-7

Cite this

@article{3c0f3287e0664dfb82a7bd8d3733d26c,

title = "Lean-DeNO(x) titania based monolithic catalysts",

abstract = "The activity of titania based copper and platinum monolithic catalysts in the reduction of nitrogen oxides was studied with exhaust gases from a Diesel engine injecting fuel as reductant. Combining both catalysts, a two-stage system was designed, studying the influence of the copper catalysts composition on its performance with synthetic gas mixtures. The influence of reactants concentration and operating conditions was also investigated. Taking into account these results, a double-bed system with a cell density of 33 cell cm(-2) (210 c.p.s.i.) was prepared. Linear velocity had a strong influence on the performance of the Pt catalyst and of the double-bed. Two NOx conversion maxima were observed with Pt/TiO2 at 225 degrees C and 350 degrees C operating at 6.6 m s(-1). Promising NOx conversions were achieved in the temperature range 200-450 degrees C. (C) 1998 Elsevier Science B.V. All rights reserved.",

keywords = "NOx reduction, monolith, hydrocarbon, diesel, platinum, copper oxide",

author = "J Blanco and Ingemar Odenbrand and P Avila and C Knapp",

year = "1998",

doi = "10.1016/S0920-5861(98)00255-7",

language = "English",

volume = "45",

pages = "103--108",

journal = "Catalysis Today",

issn = "0920-5861",

publisher = "Elsevier",

number = "1-4",

}

TY - JOUR

T1 - Lean-DeNO(x) titania based monolithic catalysts

AU - Blanco, J

AU - Odenbrand, Ingemar

AU - Avila, P

AU - Knapp, C

PY - 1998

Y1 - 1998

N2 - The activity of titania based copper and platinum monolithic catalysts in the reduction of nitrogen oxides was studied with exhaust gases from a Diesel engine injecting fuel as reductant. Combining both catalysts, a two-stage system was designed, studying the influence of the copper catalysts composition on its performance with synthetic gas mixtures. The influence of reactants concentration and operating conditions was also investigated. Taking into account these results, a double-bed system with a cell density of 33 cell cm(-2) (210 c.p.s.i.) was prepared. Linear velocity had a strong influence on the performance of the Pt catalyst and of the double-bed. Two NOx conversion maxima were observed with Pt/TiO2 at 225 degrees C and 350 degrees C operating at 6.6 m s(-1). Promising NOx conversions were achieved in the temperature range 200-450 degrees C. (C) 1998 Elsevier Science B.V. All rights reserved.

AB - The activity of titania based copper and platinum monolithic catalysts in the reduction of nitrogen oxides was studied with exhaust gases from a Diesel engine injecting fuel as reductant. Combining both catalysts, a two-stage system was designed, studying the influence of the copper catalysts composition on its performance with synthetic gas mixtures. The influence of reactants concentration and operating conditions was also investigated. Taking into account these results, a double-bed system with a cell density of 33 cell cm(-2) (210 c.p.s.i.) was prepared. Linear velocity had a strong influence on the performance of the Pt catalyst and of the double-bed. Two NOx conversion maxima were observed with Pt/TiO2 at 225 degrees C and 350 degrees C operating at 6.6 m s(-1). Promising NOx conversions were achieved in the temperature range 200-450 degrees C. (C) 1998 Elsevier Science B.V. All rights reserved.

KW - NOx reduction

KW - monolith

KW - hydrocarbon

KW - diesel

KW - platinum

KW - copper oxide

U2 - 10.1016/S0920-5861(98)00255-7

DO - 10.1016/S0920-5861(98)00255-7

M3 - Article

SN - 0920-5861

VL - 45

SP - 103

EP - 108

JO - Catalysis Today

JF - Catalysis Today

IS - 1-4

ER -

Lean-DeNO(x) titania based monolithic catalysts

Abstract

Subject classification (UKÄ)

Free keywords

Access to Document

Fingerprint

Cite this