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Physical and Chemical Characterisation of Potassium Deactivation of an SCR Catalyst for Biomass Combustion

Larsson, Ann-Charlotte; Einvall, Jessica; Andersson, Arne LU and Sanati, Mehri LU (2007) In Topics in Catalysis 45(1-4). p.149-152
Abstract
The deactivation of a commercial Selective Catalytic Reduction (SCR) catalyst, of V2O5−WO3/TiO2 type, has been studied through comparisons with results from a full-scale biomass combustion plant to that with laboratory experiments. In the latter, the catalyst was exposed to KCl and K2SO4 by both wet impregnation with diluted salt solutions and deposition of generated submicrometer aerosol particles by means of an electrostatic field. The reactivity of fresh and deactivated samples was examined in the SCR reaction. Chemical and physical characterizations were focusing on internal structures and chemical composition. Deposition of submicrometer sized particles on the monolithic SCR catalyst was shown to induce deactivation with... (More)
The deactivation of a commercial Selective Catalytic Reduction (SCR) catalyst, of V2O5−WO3/TiO2 type, has been studied through comparisons with results from a full-scale biomass combustion plant to that with laboratory experiments. In the latter, the catalyst was exposed to KCl and K2SO4 by both wet impregnation with diluted salt solutions and deposition of generated submicrometer aerosol particles by means of an electrostatic field. The reactivity of fresh and deactivated samples was examined in the SCR reaction. Chemical and physical characterizations were focusing on internal structures and chemical composition. Deposition of submicrometer sized particles on the monolithic SCR catalyst was shown to induce deactivation with characteristics resembling those obtained in a commercial biomass combustion plant. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
biomass combustion, K2So4, KCl, aerosol particle, SCR, V2O5-WO3/TiO2 catalyst, poisoning, deactivation
in
Topics in Catalysis
volume
45
issue
1-4
pages
149 - 152
publisher
Kluwer
external identifiers
  • wos:000248819800027
  • scopus:34548146591
ISSN
1572-9028
DOI
10.1007/s11244-007-0256-1
language
English
LU publication?
yes
id
f4ad816c-66ec-4931-b9a7-35c2c630d96c (old id 1951922)
date added to LUP
2011-05-12 15:11:06
date last changed
2017-10-29 04:09:04
@article{f4ad816c-66ec-4931-b9a7-35c2c630d96c,
  abstract     = {The deactivation of a commercial Selective Catalytic Reduction (SCR) catalyst, of V2O5−WO3/TiO2 type, has been studied through comparisons with results from a full-scale biomass combustion plant to that with laboratory experiments. In the latter, the catalyst was exposed to KCl and K2SO4 by both wet impregnation with diluted salt solutions and deposition of generated submicrometer aerosol particles by means of an electrostatic field. The reactivity of fresh and deactivated samples was examined in the SCR reaction. Chemical and physical characterizations were focusing on internal structures and chemical composition. Deposition of submicrometer sized particles on the monolithic SCR catalyst was shown to induce deactivation with characteristics resembling those obtained in a commercial biomass combustion plant.},
  author       = {Larsson, Ann-Charlotte and Einvall, Jessica and Andersson, Arne and Sanati, Mehri},
  issn         = {1572-9028},
  keyword      = {biomass combustion,K2So4,KCl,aerosol particle,SCR,V2O5-WO3/TiO2 catalyst,poisoning,deactivation},
  language     = {eng},
  number       = {1-4},
  pages        = {149--152},
  publisher    = {Kluwer},
  series       = {Topics in Catalysis},
  title        = {Physical and Chemical Characterisation of Potassium Deactivation of an SCR Catalyst for Biomass Combustion},
  url          = {http://dx.doi.org/10.1007/s11244-007-0256-1},
  volume       = {45},
  year         = {2007},
}