Cold Selective Catalytic Reduction of Nitric Oxide for Flue Gas Applications

J. P. Chen; R. T. Yang; M. A. Buzanowski; J. E. Cichanowicz; J. E. Cichanowicz

doi:10.1021/ie00103a049

Cold Selective Catalytic Reduction of Nitric Oxide for Flue Gas Applications

J. P. Chen
, R. T. Yang
, M. A. Buzanowski
, J. E. Cichanowicz
, J. E. Cichanowicz

Department of Chemical and Biological Engineering

SUNY Buffalo
Electric Power Research Institute

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

52 Scopus citations

Abstract

Commercial selective catalytic reduction (SCR) processes for the reduction of NO to N₂by NH₃require temperatures above 300 °C. Significant SCR activities have been measured for transition metal sulfates as the catalysts, at temperatures as low as 30 °C. Under commercial SCR throughput and gas composition conditions, a 10% NiSO₄/Al₂O₃catalyst exhibited NO_xconversion of over 50% in the temperature range 50-120 °C and another activity peak at 200-250 °C with nearly 80% NO_xconversion. The low-temperature SCR activity was attributed to the Brønsted acidity of the surface. The Brønsted acidity, and hence the SCR activity, decreased upon the adsorption of water and increased with the presence of SO₂in the gas phase.

Original language	English
Pages (from-to)	1431-1435
Number of pages	5
Journal	Industrial and Engineering Chemistry Research
Volume	29
Issue number	7
DOIs	https://doi.org/10.1021/ie00103a049
State	Published - Jul 1 1990

Access to Document

10.1021/ie00103a049

Cite this

@article{813403d880524623b78d4542ce0b3699,

title = "Cold Selective Catalytic Reduction of Nitric Oxide for Flue Gas Applications",

abstract = "Commercial selective catalytic reduction (SCR) processes for the reduction of NO to N2by NH3require temperatures above 300 °C. Significant SCR activities have been measured for transition metal sulfates as the catalysts, at temperatures as low as 30 °C. Under commercial SCR throughput and gas composition conditions, a 10\% NiSO4/Al2O3catalyst exhibited NOxconversion of over 50\% in the temperature range 50-120 °C and another activity peak at 200-250 °C with nearly 80\% NOxconversion. The low-temperature SCR activity was attributed to the Br{\o}nsted acidity of the surface. The Br{\o}nsted acidity, and hence the SCR activity, decreased upon the adsorption of water and increased with the presence of SO2in the gas phase.",

author = "Chen, \{J. P.\} and Yang, \{R. T.\} and Buzanowski, \{M. A.\} and Cichanowicz, \{J. E.\} and Cichanowicz, \{J. E.\}",

year = "1990",

month = jul,

day = "1",

doi = "10.1021/ie00103a049",

language = "English",

volume = "29",

pages = "1431--1435",

journal = "Industrial and Engineering Chemistry Research",

issn = "0888-5885",

publisher = "American Chemical Society",

number = "7",

}

TY - JOUR

T1 - Cold Selective Catalytic Reduction of Nitric Oxide for Flue Gas Applications

AU - Chen, J. P.

AU - Yang, R. T.

AU - Buzanowski, M. A.

AU - Cichanowicz, J. E.

PY - 1990/7/1

Y1 - 1990/7/1

N2 - Commercial selective catalytic reduction (SCR) processes for the reduction of NO to N2by NH3require temperatures above 300 °C. Significant SCR activities have been measured for transition metal sulfates as the catalysts, at temperatures as low as 30 °C. Under commercial SCR throughput and gas composition conditions, a 10% NiSO4/Al2O3catalyst exhibited NOxconversion of over 50% in the temperature range 50-120 °C and another activity peak at 200-250 °C with nearly 80% NOxconversion. The low-temperature SCR activity was attributed to the Brønsted acidity of the surface. The Brønsted acidity, and hence the SCR activity, decreased upon the adsorption of water and increased with the presence of SO2in the gas phase.

AB - Commercial selective catalytic reduction (SCR) processes for the reduction of NO to N2by NH3require temperatures above 300 °C. Significant SCR activities have been measured for transition metal sulfates as the catalysts, at temperatures as low as 30 °C. Under commercial SCR throughput and gas composition conditions, a 10% NiSO4/Al2O3catalyst exhibited NOxconversion of over 50% in the temperature range 50-120 °C and another activity peak at 200-250 °C with nearly 80% NOxconversion. The low-temperature SCR activity was attributed to the Brønsted acidity of the surface. The Brønsted acidity, and hence the SCR activity, decreased upon the adsorption of water and increased with the presence of SO2in the gas phase.

UR - https://www.scopus.com/pages/publications/0025464103

U2 - 10.1021/ie00103a049

DO - 10.1021/ie00103a049

M3 - Article

AN - SCOPUS:0025464103

SN - 0888-5885

VL - 29

SP - 1431

EP - 1435

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 7

ER -

Cold Selective Catalytic Reduction of Nitric Oxide for Flue Gas Applications

Abstract

Access to Document

Other files and links

Fingerprint

Cite this