TY - GEN
T1 - Simultaneous removal of SOx and NOx in flue gas at power stations over a Cu/Na-13X zeolite catalyst
AU - Zhao, Haitao
AU - Wu, Tao
AU - He, Jun
AU - Kingman, Sam
AU - Shi, Kaiqi
AU - Shen, Di
AU - Zhang, Yiyun
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - Due to their significant impacts on the environment and health, there has been a growing environmental concern on sulfur oxide (SOx), nitrogen oxides (NOx) emissions to the atmosphere in the past two decades. Flue gas at coal-fired power stations is one of the main sources for the emissions of SOx and NOx. More and more stringent regulations on the emission of these pollutants come in force, which have put a high pressure on coal-fired power generators. Cost-effective and sustainable technologies for the reduction of such pollutants from flue gas have become increasingly important nowadays. However, even though numerous attempts have been made aiming at developing technologies for the removal of SOx and NOx, not much effort has been made on the simultaneous conversion of NOx and SOx in flue gas via selective catalytic reduction. This paper presents the study of simultaneous removal of SO2 and NO over a synthesized Cu/Na-13X zeolite catalyst using carbon monoxide as a reducing agent. The characterization of fresh and spent catalysts was carried out using X-Ray Diffraction (XRD) and Brunauer-Emmett-Teller (BET) Surface Area Analyser. The experiments on the selective reduction of SO2 and NO were carried out using a multi-functional catalyst testing rig with an online flue gas analyser. It has been found that zeolite has a good capability of SO2 adsorption even under elevated temperatures. The removal efficiency was found to be 100% for SO2 and 89% for NO over a Cu/Na-13X zeolite catalyst.
AB - Due to their significant impacts on the environment and health, there has been a growing environmental concern on sulfur oxide (SOx), nitrogen oxides (NOx) emissions to the atmosphere in the past two decades. Flue gas at coal-fired power stations is one of the main sources for the emissions of SOx and NOx. More and more stringent regulations on the emission of these pollutants come in force, which have put a high pressure on coal-fired power generators. Cost-effective and sustainable technologies for the reduction of such pollutants from flue gas have become increasingly important nowadays. However, even though numerous attempts have been made aiming at developing technologies for the removal of SOx and NOx, not much effort has been made on the simultaneous conversion of NOx and SOx in flue gas via selective catalytic reduction. This paper presents the study of simultaneous removal of SO2 and NO over a synthesized Cu/Na-13X zeolite catalyst using carbon monoxide as a reducing agent. The characterization of fresh and spent catalysts was carried out using X-Ray Diffraction (XRD) and Brunauer-Emmett-Teller (BET) Surface Area Analyser. The experiments on the selective reduction of SO2 and NO were carried out using a multi-functional catalyst testing rig with an online flue gas analyser. It has been found that zeolite has a good capability of SO2 adsorption even under elevated temperatures. The removal efficiency was found to be 100% for SO2 and 89% for NO over a Cu/Na-13X zeolite catalyst.
KW - Coal-firing
KW - Desulfurization and denitrification
KW - Flue gas
KW - Zeolite catalyst
UR - http://www.scopus.com/inward/record.url?scp=84873717928&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.650.125
DO - 10.4028/www.scientific.net/AMR.650.125
M3 - Conference contribution
AN - SCOPUS:84873717928
SN - 9783037855997
T3 - Advanced Materials Research
SP - 125
EP - 129
BT - Advances in Materials Science and Engineering
T2 - 2012 International Conference on Advances in Materials Science and Engineering, AMSE 2012
Y2 - 9 December 2012 through 10 December 2012
ER -
