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Received May 13, 2010
Accepted June 7, 2010
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NH3 selective catalytic reduction (SCR) of nitrogen oxides (NOx) over activated sewage sludge char
Yong Beom Jo1
Jin Sun Cha2
Jeong Huy Ko1
Min Chul Shin3
Sung Hoon Park4
Jong-Ki Jeon5
Seung-Soo Kim6
Young-Kwon Park1 2†
1Graduate School of Energy and Environmental System Engineering, University of Seoul, Seoul 130-743, Korea 2School of Environmental Engineering, University of Seoul, Seoul 130-743, Korea 3Material Testing Center, Korea Testing Laboratory, Seoul 152-718, Korea 4Department of Environmental Engineering, Sunchon National University, Suncheon 540-742, Korea 5Department of Chemical Engineering, Kongju National University, Cheonan 330-717, Korea 6Department of Chemical Engineering, Kangwon National University, Samcheok 245-711, Korea
catalica@uos.ac.kr
Korean Journal of Chemical Engineering, January 2011, 28(1), 106-113(8), 10.1007/s11814-010-0283-7
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Abstract
The de-NOx performance of sewage sludge chars activated physically using water vapor or chemically using KOH was evaluated. Characteristics of chars activated under different activation temperatures, water vapor concentrations, and KOH/char ratios were analyzed by N2 adsorption-desorption and FT-IR. Chemically activated chars were more efficient in removing NOx due to their higher surface area, oxygen functional group and NH3 adsorption than physically activated chars. The de-NOx performance of the activated chars is influenced more by chemical properties_x000D_
such as oxygen functional groups and NH3 adsorption sites than by physical properties like specific surface area and pore volume.
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Caturla F, Sabio MM, Reinoso FR, Carbon., 29, 999 (1991)
Figueiredo JL and Pereira MFR, in Carbon Materials for Catalysis, Serp P and Figueiredo JL Eds., John Wiley & Sons, Inc.,Hoboken, New Jersey (2009)
