Low Temperature Selective Catalytic Reduction (SCR) of NOx Emissions by Mn-doped Cu/Al2O3 Catalysts

The 15 mol% Cu/Al2O3 catalysts with different Mn doping (0.5, 1.0, 1.5, mol%) were prepared using PEG-300 surfactant following evaporation-induced self-assembly (EISA) method. Calcination of precursors were performed in flowing air conditions at 500 ºC. The catalysts were characterized by X-ray Diff...

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Main Authors: Yadav, Deepak (Author), Kavaiya, Ashish R. (Author), Mohan, Devendra (Author), Prasad, Ram (Author)
Format: EJournal Article
Published: Department of Chemical Engineering - Diponegoro University, 2017-12-01.
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LEADER 02830 am a22002893u 4500
001 BCREC_UNDIP_895_967
042 |a dc 
100 1 0 |a Yadav, Deepak  |e author 
100 1 0 |e contributor 
700 1 0 |a Kavaiya, Ashish R.  |e author 
700 1 0 |a Mohan, Devendra  |e author 
700 1 0 |a Prasad, Ram  |e author 
245 0 0 |a Low Temperature Selective Catalytic Reduction (SCR) of NOx Emissions by Mn-doped Cu/Al2O3 Catalysts 
260 |b Department of Chemical Engineering - Diponegoro University,   |c 2017-12-01. 
500 |a https://ejournal2.undip.ac.id/index.php/bcrec/article/view/895 
520 |a The 15 mol% Cu/Al2O3 catalysts with different Mn doping (0.5, 1.0, 1.5, mol%) were prepared using PEG-300 surfactant following evaporation-induced self-assembly (EISA) method. Calcination of precursors were performed in flowing air conditions at 500 ºC. The catalysts were characterized by X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Scanning Electron Microscope Energy Dispersive X-Ray (SEM-EDX), Fourier Transform Infra Red (FTIR), and N2 physisorption. The catalysts activities were evaluated for H2 assisted LPG-SCR of NO in a packed bed tubular flow reactor with 200 mg catalyst under the following conditions: 500 ppm NO, 8 % O2, 1000 ppm LPG, 1 % H2 in Ar with total flow rate of 100 mL/min. Characterization of the catalysts revealed that surface area of 45.6-50.3 m2/g, narrow pore size distribution (1-2 nm), nano-size crystallites, Cu2+ and Mn2+ phases were principal active components. Hydrogen enhanced significantly selective reduction of NO to N2 with LPG over 1.0 mol % Mn-Cu/Al2O3 giving 95.56 % NO reduction at 150 ºC. It was proposed that the synergistic interaction between H2 and LPG substantially widened the NO reduction temperature window and a considerable increase in both activity and selectivity. Negligible loss of catalyst activity was observed for the 50 h of stream on run experiment at 150 ºC. The narrow pore size distribution, thermal stability of the catalyst and optimum Mn doping ensures good dispersion of Cu and Mn over Al2O3 that improved NO reduction in H2-LPG SCR system.  
540 |a Copyright (c) 2017 by Authors, Published by BCREC Group 
540 |a http://creativecommons.org/licenses/by-sa/4.0 
546 |a eng 
690 |a Mn-doped Cu/Al2O3; Selective Catalytic Reduction; SCR; NOx; H2-LPG; de-NOx 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n Bulletin of Chemical Reaction Engineering & Catalysis; 2017: BCREC Volume 12 Issue 3 Year 2017 (December 2017); 415-429 
786 0 |n 1978-2993 
787 0 |n https://ejournal2.undip.ac.id/index.php/bcrec/article/view/895/967 
856 4 1 |u https://ejournal2.undip.ac.id/index.php/bcrec/article/view/895/967  |z Get Fulltext