MnFe/Al2O3 Catalyst Synthesized by Deposition Precipitation for Low-Temperature Selective Catalytic Reduction of NO with NH3

Leonhard Schill; Siva Sankar Reddy Putluru; Anker Degn Jensen; Rasmus Fehrmann

doi:10.1007/s10562-015-1576-6

MnFe/Al₂O₃ Catalyst Synthesized by Deposition Precipitation for Low-Temperature Selective Catalytic Reduction of NO with NH₃

Leonhard Schill
, Siva Sankar Reddy Putluru
, Anker Degn Jensen
, Rasmus Fehrmann

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

1 Downloads (Orbit)

Abstract

Mn-Fe/Al₂O₃ and Mn-Fe/TiO₂ catalysts have been prepared by impregnation (IMP) and deposition precipitation (DP) and characterized with several techniques including: XRDP, N₂-physisorption, NH₃-TPD, H₂-TPR, TGA and XPS. 40 wt% Mn_0.75Fe_0.25/Al₂O₃ prepared with ammonia carbamate as precipitating agent showed the same superior low temperature selective catalytic reduction of NO with NH₃ as did 25 wt% Mn_0.75Fe_0.25/TiO₂ prepared in the same way. Both catalysts were much more active when prepared by DP instead of IMP. 25 wt% Mn_0.75Fe_0.25/TiO₂ and 40 wt% Mn_0.75Fe_0.25/Al₂O₃ prepared by DP were exposed to a gas containing 20 vol% H₂O at temperatures between 140 and 200 A degrees C and compared to an industrial V₂O₅-WO₃/TiO₂ catalyst tested at 220 °C. Both homemade catalysts were severely inhibited by 20 vol% H₂O. However, used at 180 °C they match the activity of the industrial reference at 220 °C.

Original language	English
Journal	Catalysis Letters
Volume	145
Issue number	9
Pages (from-to)	1724-1732
Number of pages	9
ISSN	1011-372X
DOIs	https://doi.org/10.1007/s10562-015-1576-6
Publication status	Published - 2015

Keywords

Catalysis
Industrial Chemistry/Chemical Engineering
Organometallic Chemistry
Physical Chemistry

Access to Document

10.1007/s10562-015-1576-6

OpenUrl availability

Check availability in DTU Findit

Cite this

@article{b88bd01d17ad4ba9a96ccdc654bc6f4a,

title = "MnFe/Al2O3 Catalyst Synthesized by Deposition Precipitation for Low-Temperature Selective Catalytic Reduction of NO with NH3",

abstract = "Mn-Fe/Al2O3 and Mn-Fe/TiO2 catalysts have been prepared by impregnation (IMP) and deposition precipitation (DP) and characterized with several techniques including: XRDP, N2-physisorption, NH3-TPD, H2-TPR, TGA and XPS. 40 wt\% Mn0.75Fe0.25/Al2O3 prepared with ammonia carbamate as precipitating agent showed the same superior low temperature selective catalytic reduction of NO with NH3 as did 25 wt\% Mn0.75Fe0.25/TiO2 prepared in the same way. Both catalysts were much more active when prepared by DP instead of IMP. 25 wt\% Mn0.75Fe0.25/TiO2 and 40 wt\% Mn0.75Fe0.25/Al2O3 prepared by DP were exposed to a gas containing 20 vol\% H2O at temperatures between 140 and 200 A degrees C and compared to an industrial V2O5-WO3/TiO2 catalyst tested at 220 °C. Both homemade catalysts were severely inhibited by 20 vol\% H2O. However, used at 180 °C they match the activity of the industrial reference at 220 °C.",

keywords = "Catalysis, Industrial Chemistry/Chemical Engineering, Organometallic Chemistry, Physical Chemistry",

author = "Leonhard Schill and Putluru, \{Siva Sankar Reddy\} and Jensen, \{Anker Degn\} and Rasmus Fehrmann",

year = "2015",

doi = "10.1007/s10562-015-1576-6",

language = "English",

volume = "145",

pages = "1724--1732",

journal = "Catalysis Letters",

issn = "1011-372X",

publisher = "Kluwer Academic Publishers",

number = "9",

}

TY - JOUR

T1 - MnFe/Al2O3 Catalyst Synthesized by Deposition Precipitation for Low-Temperature Selective Catalytic Reduction of NO with NH3

AU - Schill, Leonhard

AU - Putluru, Siva Sankar Reddy

AU - Jensen, Anker Degn

AU - Fehrmann, Rasmus

PY - 2015

Y1 - 2015

N2 - Mn-Fe/Al2O3 and Mn-Fe/TiO2 catalysts have been prepared by impregnation (IMP) and deposition precipitation (DP) and characterized with several techniques including: XRDP, N2-physisorption, NH3-TPD, H2-TPR, TGA and XPS. 40 wt% Mn0.75Fe0.25/Al2O3 prepared with ammonia carbamate as precipitating agent showed the same superior low temperature selective catalytic reduction of NO with NH3 as did 25 wt% Mn0.75Fe0.25/TiO2 prepared in the same way. Both catalysts were much more active when prepared by DP instead of IMP. 25 wt% Mn0.75Fe0.25/TiO2 and 40 wt% Mn0.75Fe0.25/Al2O3 prepared by DP were exposed to a gas containing 20 vol% H2O at temperatures between 140 and 200 A degrees C and compared to an industrial V2O5-WO3/TiO2 catalyst tested at 220 °C. Both homemade catalysts were severely inhibited by 20 vol% H2O. However, used at 180 °C they match the activity of the industrial reference at 220 °C.

AB - Mn-Fe/Al2O3 and Mn-Fe/TiO2 catalysts have been prepared by impregnation (IMP) and deposition precipitation (DP) and characterized with several techniques including: XRDP, N2-physisorption, NH3-TPD, H2-TPR, TGA and XPS. 40 wt% Mn0.75Fe0.25/Al2O3 prepared with ammonia carbamate as precipitating agent showed the same superior low temperature selective catalytic reduction of NO with NH3 as did 25 wt% Mn0.75Fe0.25/TiO2 prepared in the same way. Both catalysts were much more active when prepared by DP instead of IMP. 25 wt% Mn0.75Fe0.25/TiO2 and 40 wt% Mn0.75Fe0.25/Al2O3 prepared by DP were exposed to a gas containing 20 vol% H2O at temperatures between 140 and 200 A degrees C and compared to an industrial V2O5-WO3/TiO2 catalyst tested at 220 °C. Both homemade catalysts were severely inhibited by 20 vol% H2O. However, used at 180 °C they match the activity of the industrial reference at 220 °C.

KW - Catalysis

KW - Industrial Chemistry/Chemical Engineering

KW - Organometallic Chemistry

KW - Physical Chemistry

U2 - 10.1007/s10562-015-1576-6

DO - 10.1007/s10562-015-1576-6

M3 - Journal article

SN - 1011-372X

VL - 145

SP - 1724

EP - 1732

JO - Catalysis Letters

JF - Catalysis Letters

IS - 9

ER -