Deactivation of vanadia-based commercial SCR catalysts by polyphosphoric acids

Francesco Castellino; Søren Birk Rasmussen; Anker Degn Jensen; Jan Erik Johnsson; Rasmus Fehrmann

doi:10.1016/j.apcatb.2008.02.008

Deactivation of vanadia-based commercial SCR catalysts by polyphosphoric acids

Francesco Castellino, Søren Birk Rasmussen, Anker Degn Jensen, Jan Erik Johnsson, Rasmus Fehrmann

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Commercial vanadia-based SCR monoliths have been exposed to flue gases in a pilot-scale Setup into which phosphoric acid has been added and the deactivation has been followed during the exposure time. Separate measurements by SMPS showed that the phosphoric acid formed polyphosphoric acid aerosols, which were characterized by particle number concentrations in the order of 1 x 10(14) #m(3) at 350 degrees C and diameters

Original language	English
Journal	Applied Catalysis B: Environmental
Volume	83
Issue number	1-2
Pages (from-to)	110-122
ISSN	0926-3373
DOIs	https://doi.org/10.1016/j.apcatb.2008.02.008
Publication status	Published - 2008

Keywords

SCR catalyst deactivation
SMPS
vanadia
EPR
polyphosphoric acid

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title = "Deactivation of vanadia-based commercial SCR catalysts by polyphosphoric acids",

abstract = "Commercial vanadia-based SCR monoliths have been exposed to flue gases in a pilot-scale Setup into which phosphoric acid has been added and the deactivation has been followed during the exposure time. Separate measurements by SMPS showed that the phosphoric acid formed polyphosphoric acid aerosols, which were characterized by particle number concentrations in the order of 1 x 10(14) #m(3) at 350 degrees C and diameters ",

keywords = "SCR catalyst deactivation, SMPS, vanadia, EPR, polyphosphoric acid",

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AU - Castellino, Francesco

AU - Rasmussen, Søren Birk

AU - Jensen, Anker Degn

AU - Johnsson, Jan Erik

AU - Fehrmann, Rasmus

PY - 2008

Y1 - 2008

N2 - Commercial vanadia-based SCR monoliths have been exposed to flue gases in a pilot-scale Setup into which phosphoric acid has been added and the deactivation has been followed during the exposure time. Separate measurements by SMPS showed that the phosphoric acid formed polyphosphoric acid aerosols, which were characterized by particle number concentrations in the order of 1 x 10(14) #m(3) at 350 degrees C and diameters

AB - Commercial vanadia-based SCR monoliths have been exposed to flue gases in a pilot-scale Setup into which phosphoric acid has been added and the deactivation has been followed during the exposure time. Separate measurements by SMPS showed that the phosphoric acid formed polyphosphoric acid aerosols, which were characterized by particle number concentrations in the order of 1 x 10(14) #m(3) at 350 degrees C and diameters

KW - SCR catalyst deactivation

KW - SMPS

KW - vanadia

KW - EPR

KW - polyphosphoric acid

U2 - 10.1016/j.apcatb.2008.02.008

DO - 10.1016/j.apcatb.2008.02.008

M3 - Journal article

SN - 0926-3373

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SP - 110

EP - 122

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

IS - 1-2

ER -

Deactivation of vanadia-based commercial SCR catalysts by polyphosphoric acids

Abstract

Keywords

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