High deNOx performance of Mn/TiO2 catalyst by NH3

Young Jin Kim; Hyuk Jae Kwon; In Sik Nam; Jin Woo Choung; Jeong Ki Kil; Hong Jip Kim; Moon Soon Cha; Gwon Koo Yeo

doi:10.1016/j.cattod.2010.02.074

High deNOx performance of Mn/TiO₂ catalyst by NH₃

Young Jin Kim
, Hyuk Jae Kwon
, In Sik Nam
, Jin Woo Choung
, Jeong Ki Kil
, Hong Jip Kim
, Moon Soon Cha
, Gwon Koo Yeo

Department of Environmental Engineering

Pohang University of Science and Technology
Power Train R and D Center
Ordeg Corporation

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

151 Scopus citations

Abstract

The deNOx performance of the s-Mn/TiO2 catalyst prepared by sol-gel method has been significantly enhanced, particularly in the low temperature region. Mn is basically incorporated into the matrix of Ti and becomes a structural component of s-MnO₂/TiO₂ mixed oxide, whereas by impregnation method it simply exists on the surface of i-Mn/TiO₂. The well-dispersed Mn over s-Mn/TiO₂ catalyst is the primary cause for the high deNOx performance compared to that over i-Mn/TiO2. The addition of Fe onto the Mn/TiO₂ catalyst improves the NO_x removal activity by NH₃ in a wide operating temperature window, including the low temperature region less than 250.C, regardless of the catalyst preparation methods. Including NO₂ (NO₂/NO = 1) in the feed gas stream further enhances the low temperature deNOx activity of Mn/Fe/TiO₂ catalyst.

Original language	English
Pages (from-to)	244-250
Number of pages	7
Journal	Catalysis Today
Volume	151
Issue number	3-4
DOIs	https://doi.org/10.1016/j.cattod.2010.02.074
State	Published - 19 Jun 2010

Keywords

Fast SCR reaction
Low temperature SCR
Mn/TiO
Sol-gel
Urea-SCR

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10.1016/j.cattod.2010.02.074

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title = "High deNOx performance of Mn/TiO2 catalyst by NH3",

abstract = "The deNOx performance of the s-Mn/TiO2 catalyst prepared by sol-gel method has been significantly enhanced, particularly in the low temperature region. Mn is basically incorporated into the matrix of Ti and becomes a structural component of s-MnO2/TiO2 mixed oxide, whereas by impregnation method it simply exists on the surface of i-Mn/TiO2. The well-dispersed Mn over s-Mn/TiO2 catalyst is the primary cause for the high deNOx performance compared to that over i-Mn/TiO2. The addition of Fe onto the Mn/TiO2 catalyst improves the NOx removal activity by NH3 in a wide operating temperature window, including the low temperature region less than 250.C, regardless of the catalyst preparation methods. Including NO2 (NO2/NO = 1) in the feed gas stream further enhances the low temperature deNOx activity of Mn/Fe/TiO2 catalyst.",

keywords = "Fast SCR reaction, Low temperature SCR, Mn/TiO, Sol-gel, Urea-SCR",

author = "Kim, \{Young Jin\} and Kwon, \{Hyuk Jae\} and Nam, \{In Sik\} and Choung, \{Jin Woo\} and Kil, \{Jeong Ki\} and Kim, \{Hong Jip\} and Cha, \{Moon Soon\} and Yeo, \{Gwon Koo\}",

year = "2010",

month = jun,

day = "19",

doi = "10.1016/j.cattod.2010.02.074",

language = "English",

volume = "151",

pages = "244--250",

journal = "Catalysis Today",

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T1 - High deNOx performance of Mn/TiO2 catalyst by NH3

AU - Kim, Young Jin

AU - Kwon, Hyuk Jae

AU - Nam, In Sik

AU - Choung, Jin Woo

AU - Kil, Jeong Ki

AU - Kim, Hong Jip

AU - Cha, Moon Soon

AU - Yeo, Gwon Koo

PY - 2010/6/19

Y1 - 2010/6/19

N2 - The deNOx performance of the s-Mn/TiO2 catalyst prepared by sol-gel method has been significantly enhanced, particularly in the low temperature region. Mn is basically incorporated into the matrix of Ti and becomes a structural component of s-MnO2/TiO2 mixed oxide, whereas by impregnation method it simply exists on the surface of i-Mn/TiO2. The well-dispersed Mn over s-Mn/TiO2 catalyst is the primary cause for the high deNOx performance compared to that over i-Mn/TiO2. The addition of Fe onto the Mn/TiO2 catalyst improves the NOx removal activity by NH3 in a wide operating temperature window, including the low temperature region less than 250.C, regardless of the catalyst preparation methods. Including NO2 (NO2/NO = 1) in the feed gas stream further enhances the low temperature deNOx activity of Mn/Fe/TiO2 catalyst.

AB - The deNOx performance of the s-Mn/TiO2 catalyst prepared by sol-gel method has been significantly enhanced, particularly in the low temperature region. Mn is basically incorporated into the matrix of Ti and becomes a structural component of s-MnO2/TiO2 mixed oxide, whereas by impregnation method it simply exists on the surface of i-Mn/TiO2. The well-dispersed Mn over s-Mn/TiO2 catalyst is the primary cause for the high deNOx performance compared to that over i-Mn/TiO2. The addition of Fe onto the Mn/TiO2 catalyst improves the NOx removal activity by NH3 in a wide operating temperature window, including the low temperature region less than 250.C, regardless of the catalyst preparation methods. Including NO2 (NO2/NO = 1) in the feed gas stream further enhances the low temperature deNOx activity of Mn/Fe/TiO2 catalyst.

KW - Fast SCR reaction

KW - Low temperature SCR

KW - Mn/TiO

KW - Sol-gel

KW - Urea-SCR

UR - https://www.scopus.com/pages/publications/77954217239

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DO - 10.1016/j.cattod.2010.02.074

M3 - Article

AN - SCOPUS:77954217239

SN - 0920-5861

VL - 151

SP - 244

EP - 250

JO - Catalysis Today

JF - Catalysis Today

IS - 3-4

ER -

High deNOx performance of Mn/TiO₂ catalyst by NH₃

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Keywords

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