Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received July 14, 2016
Accepted February 17, 2017
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
NH3-SCR performance and characterization over magnetic iron-magnesium mixed oxide catalysts
School of Energy and Power Engineering, Shandong University, 250061 Jinan, China 1State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China 2School of Chemistry and Chemical Engineering, Shandong University, 250100 Jinan, China
cml@sdu.edu.cn
Korean Journal of Chemical Engineering, May 2017, 34(5), 1576-1583(8), 10.1007/s11814-017-0044-y
Download PDF
Abstract
A series of magnetic iron-magnesium mixed oxide catalysts (Fe1-xMgxOz) were synthesized via a novel coprecipitation method with microwave thermal treatment, and their activity in NH3-SCR was tested on a quartz fixedbed reactor. Physical and chemical properties of the catalysts were characterized by X-ray diffraction (XRD), N2-adsorption-desorption, scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). Fe0.8Mg0.2Oz with excellent N2 selectivity and resistance to SO2 and H2O was validated as the proper SCR catalyst, with the maximum NOx conversion of 99.1% fulfilled at 325 °C. Activity was strongly influenced by the γ-Fe2O3 crystalline phase, and magnesium existed in an amorphous phase and interacted with iron oxide intensively to form solid solution in favor of SCR. For Fe0.8Mg0.2Oz catalyst, optimum pore diameter distribution, appropriate surface area, pore volume and abundant lattice oxygen on the surface could be guaranteed, which is good for the diffusion process and enhances the activity.
References
Yang J, Ma HT, Yamamoto Y, Yu J, Xu GW, Zhang ZG, Suzuki Y, Chem. Eng. J., 230, 513 (2013)
Jo YB, Cha JS, Ko JH, Shin MC, Park SH, Jeon JK, Kim SS, Park YK, Korean J. Chem. Eng., 28(1), 106 (2011)
Chen YG, Wang Z, Guo ZC, Chin J. Process Eng., 7, 632 (2007)
Seo PW, Kim SS, Hong SC, Korean J. Chem. Eng., 27(4), 1220 (2010)
Gao FY, Tang XL, Yi HH, Zhao SZ, Zhang TT, Li D, Ma D, Bull. Sci. Technol, 26, 2560 (2014)
Xiong L, Zhong Q, Chen Q, Zhang S, Korean J. Chem. Eng., 30(4), 836 (2013)
Gao X, Lu XJ, Hu MH, J. Jianghan Univ., 02, 12 (2014)
Cao F, Su S, Xiang J, Wang PY, Hu S, Sun LS, Zhang AC, Fuel, 139, 232 (2015)
Casanova M, Llorca J, Sagar A, Schermanz K, Trovarelli A, Catal. Today, 241, 159 (2015)
Foo R, Vazhnova T, Lukyanov DB, Millington P, Collier J, Rajaram R, Golunski S, Appl. Catal. B: Environ., 162, 174 (2015)
Yao GH, Gui KT, Wang F, Chem. Eng. Technol., 33(7), 1093 (2010)
Wang D, Wu JK, Niu SL, Lu CM, Xu LT, Yu HW, Li J, J. Fuel Chem. Technol., 43, 876 (2015)
Zhang XL, Wang D, Peng JS, Lu CM, Xu LT, J. Fuel Chem. Technol., 43, 243 (2015)
Gao Y, Hu XM, Liu PJ, Li Y, Zhang Y, Liu Y, Guo YB, Chin J. Environ. Eng., 2, 806 (2008)
Lai RY, Tang XL, Yi HH, Li K, Wang P, Sun X, Mod. Chem. Ind., 34, 76 (2014)
Zhang SL, Li HY, Zhong Q, Appl. Catal. A: Gen., 435-436, 156 (2012)
Cao Z, Huang Y, Peng LL, Li JG, J. Fuel Chem. Technol., 40, 456 (2012)
Chen JS, Shang XS, Zhao JP, Zhang FW, Xu Y, Li JR, Electric. Power., 43, 64 (2010)
Wang S, Yao GH, Gui KT, Prog. Chin. Soc. Electrial Eng., 29, 47 (2009)
Chen L, Li JH, Ge MF, Environ. Sci. Technol., 44, 9590 (2011)
Chen LA, Li JH, Ge MF, Zhu RH, Catal. Today, 153(3-4), 77 (2010)
Qi GS, Yang RT, J. Catal., 217(2), 434 (2003)
Jo YB, Cha JS, Ko JH, Shin MC, Park SH, Jeon JK, Kim SS, Park YK, Korean J. Chem. Eng., 28(1), 106 (2011)
Chen YG, Wang Z, Guo ZC, Chin J. Process Eng., 7, 632 (2007)
Seo PW, Kim SS, Hong SC, Korean J. Chem. Eng., 27(4), 1220 (2010)
Gao FY, Tang XL, Yi HH, Zhao SZ, Zhang TT, Li D, Ma D, Bull. Sci. Technol, 26, 2560 (2014)
Xiong L, Zhong Q, Chen Q, Zhang S, Korean J. Chem. Eng., 30(4), 836 (2013)
Gao X, Lu XJ, Hu MH, J. Jianghan Univ., 02, 12 (2014)
Cao F, Su S, Xiang J, Wang PY, Hu S, Sun LS, Zhang AC, Fuel, 139, 232 (2015)
Casanova M, Llorca J, Sagar A, Schermanz K, Trovarelli A, Catal. Today, 241, 159 (2015)
Foo R, Vazhnova T, Lukyanov DB, Millington P, Collier J, Rajaram R, Golunski S, Appl. Catal. B: Environ., 162, 174 (2015)
Yao GH, Gui KT, Wang F, Chem. Eng. Technol., 33(7), 1093 (2010)
Wang D, Wu JK, Niu SL, Lu CM, Xu LT, Yu HW, Li J, J. Fuel Chem. Technol., 43, 876 (2015)
Zhang XL, Wang D, Peng JS, Lu CM, Xu LT, J. Fuel Chem. Technol., 43, 243 (2015)
Gao Y, Hu XM, Liu PJ, Li Y, Zhang Y, Liu Y, Guo YB, Chin J. Environ. Eng., 2, 806 (2008)
Lai RY, Tang XL, Yi HH, Li K, Wang P, Sun X, Mod. Chem. Ind., 34, 76 (2014)
Zhang SL, Li HY, Zhong Q, Appl. Catal. A: Gen., 435-436, 156 (2012)
Cao Z, Huang Y, Peng LL, Li JG, J. Fuel Chem. Technol., 40, 456 (2012)
Chen JS, Shang XS, Zhao JP, Zhang FW, Xu Y, Li JR, Electric. Power., 43, 64 (2010)
Wang S, Yao GH, Gui KT, Prog. Chin. Soc. Electrial Eng., 29, 47 (2009)
Chen L, Li JH, Ge MF, Environ. Sci. Technol., 44, 9590 (2011)
Chen LA, Li JH, Ge MF, Zhu RH, Catal. Today, 153(3-4), 77 (2010)
Qi GS, Yang RT, J. Catal., 217(2), 434 (2003)
