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González JM, Villa AL. High Temperature SCR Over Cu-SSZ-13 and Cu-SSZ-13 + Fe-SSZ-13: Activity of Cu2+ and [CuOH]1+ Sites and the Apparent Promoting Effect of Adding Fe into Cu-SSZ-13 Catalyst. Catal Letters 2021. [DOI: 10.1007/s10562-021-03550-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Influence of calcination temperature on the evolution of Fe species over Fe-SSZ-13 catalyst for the NH3-SCR of NO. Catal Today 2020. [DOI: 10.1016/j.cattod.2020.06.085] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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3
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Ruggeri MP, Nova I, Tronconi E, Schmeißer V, Weibel M. Modelling the Hydrothermal Ageing of a Fe-Zeolite Catalyst for Automotive NH 3
-SCR Applications. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201700135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Maria Pia Ruggeri
- Politecnico di Milano; Laboratory of Catalysis and Catalytic Processes; Dipartimento di Energia; via La Masa 34 20156 Milano Italy
| | - Isabella Nova
- Politecnico di Milano; Laboratory of Catalysis and Catalytic Processes; Dipartimento di Energia; via La Masa 34 20156 Milano Italy
| | - Enrico Tronconi
- Politecnico di Milano; Laboratory of Catalysis and Catalytic Processes; Dipartimento di Energia; via La Masa 34 20156 Milano Italy
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4
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Efficient interpolation of precomputed kinetic data employing reduced multivariate Hermite Splines. Comput Chem Eng 2017. [DOI: 10.1016/j.compchemeng.2016.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Gong J, Narayanaswamy K, Rutland CJ. Heterogeneous Ammonia Storage Model for NH3–SCR Modeling. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b01097] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Gong
- Engine
Research Center, University of Wisconsin—Madison, 1500 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Kushal Narayanaswamy
- General Motors,
Global Research and Development, 30500
Mound Road, Warren, Michigan 48092, United States
| | - Christopher J. Rutland
- Engine
Research Center, University of Wisconsin—Madison, 1500 Engineering Drive, Madison, Wisconsin 53706, United States
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6
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Gao F, Wang Y, Kollár M, Washton NM, Szanyi J, Peden CH. A comparative kinetics study between Cu/SSZ-13 and Fe/SSZ-13 SCR catalysts. Catal Today 2015. [DOI: 10.1016/j.cattod.2015.01.025] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Beale AM, Gao F, Lezcano-Gonzalez I, Peden CHF, Szanyi J. Recent advances in automotive catalysis for NOx emission control by small-pore microporous materials. Chem Soc Rev 2015; 44:7371-405. [PMID: 25913215 DOI: 10.1039/c5cs00108k] [Citation(s) in RCA: 441] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The ever increasing demand to develop highly fuel efficient engines coincides with the need to minimize air pollution originating from the exhaust gases of internal combustion engines. Dramatically improved fuel efficiency can be achieved at air-to-fuel ratios much higher than stoichiometric. In the presence of oxygen in large excess, however, traditional three-way catalysts are unable to reduce NOx. Among the number of lean-NOx reduction technologies, selective catalytic reduction (SCR) of NOx by NH3 over Cu- and Fe-ion exchanged zeolite catalysts has been extensively studied over the past 30+ years. Despite the significant advances in developing a viable practical zeolite-based catalyst for lean NOx reduction, the insufficient hydrothermal stabilities of the zeolite structures considered cast doubts about their real-world applicability. During the past decade renewed interest in zeolite-based lean NOx reduction was spurred by the discovery of the very high activity of Cu-SSZ-13 (and the isostructural Cu-SAPO-34) in the NH3-SCR of NOx. These new, small-pore zeolite-based catalysts not only exhibited very high NOx conversion and N2 selectivity, but also exhibited exceptionally high hydrothermal stability at high temperatures. In this review we summarize the key discoveries of the past ∼5 years that led to the introduction of these catalysts into practical applications. This review first briefly discusses the structure and preparation of the CHA structure-based zeolite catalysts, and then summarizes the key learnings of the rather extensive (but not complete) characterisation work. Then we summarize the key findings of reaction kinetic studies, and provide some mechanistic details emerging from these investigations. At the end of the review we highlight some of the issues that still need to be addressed in automotive exhaust control catalysis.
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Affiliation(s)
- A M Beale
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
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8
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Shwan S, Olsson L, Skoglundh M, Jansson J. Kinetic modeling of Fe-BEA as NH3-SCR catalyst-effect of phosphorous. AIChE J 2014. [DOI: 10.1002/aic.14638] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Soran Shwan
- Competence Centre for Catalysis; Chalmers University of Technology; SE 412 96 Gothenburg Sweden
| | - Louise Olsson
- Competence Centre for Catalysis; Chalmers University of Technology; SE 412 96 Gothenburg Sweden
| | - Magnus Skoglundh
- Competence Centre for Catalysis; Chalmers University of Technology; SE 412 96 Gothenburg Sweden
| | - Jonas Jansson
- Volvo Group Trucks Technology; SE 405 08 Gothenburg Sweden
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9
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Liebeck M, Schuler A, Votsmeier M, Drochner A, Vogel H. Infrared Spectroscopic Study of the NH3-SCR on Fe-Zeolites under Transient Conditions. Top Catal 2013. [DOI: 10.1007/s11244-013-9954-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Metkar PS, Harold MP, Balakotaiah V. Experimental and kinetic modeling study of NH3-SCR of NOx on Fe-ZSM-5, Cu-chabazite and combined Fe- and Cu-zeolite monolithic catalysts. Chem Eng Sci 2013. [DOI: 10.1016/j.ces.2012.09.008] [Citation(s) in RCA: 160] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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12
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Detailed kinetic modeling of the NH3–NO/NO2 SCR reactions over a commercial Cu-zeolite catalyst for Diesel exhausts after treatment. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.09.002] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Modeling NH3 Storage Over Fe- and Cu-Zeolite based, Urea-SCR Catalysts for Mobile Diesel Engines. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.sbspro.2012.06.1142] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Hauptmann W, Schuler A, Gieshoff J, Votsmeier M. Modellbasierte Optimierung der Harnstoffdosierung für SCR-Katalysatoren. CHEM-ING-TECH 2011. [DOI: 10.1002/cite.201100125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Plát F, Bártová Š, Štěpánek J, Kočí P, Marek M. Dynamics of a Combined DOC−NSRC−SCR Exhaust Gas Aftertreatment System with Periodic Regenerations. Ind Eng Chem Res 2010. [DOI: 10.1021/ie100590s] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- František Plát
- Department of Chemical Engineering, Institute of Chemical Technology, Prague, Technická 5, CZ 166 28 Prague, Czech Republic
| | - Šárka Bártová
- Department of Chemical Engineering, Institute of Chemical Technology, Prague, Technická 5, CZ 166 28 Prague, Czech Republic
| | - Jan Štěpánek
- Department of Chemical Engineering, Institute of Chemical Technology, Prague, Technická 5, CZ 166 28 Prague, Czech Republic
| | - Petr Kočí
- Department of Chemical Engineering, Institute of Chemical Technology, Prague, Technická 5, CZ 166 28 Prague, Czech Republic
| | - Miloš Marek
- Department of Chemical Engineering, Institute of Chemical Technology, Prague, Technická 5, CZ 166 28 Prague, Czech Republic
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Tronconi E, Nova I, Colombo M. Dynamic Methods in Catalytic Reaction Engineering: Applications to the Investigation of the NH3 Selective Catalytic Reduction Reactions for Diesel Emission Control. Ind Eng Chem Res 2010. [DOI: 10.1021/ie100507z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Enrico Tronconi
- Laboratory of Catalysis and Catalytic Processes, Dipartimento di Energia, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Italy
| | - Isabella Nova
- Laboratory of Catalysis and Catalytic Processes, Dipartimento di Energia, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Italy
| | - Massimo Colombo
- Laboratory of Catalysis and Catalytic Processes, Dipartimento di Energia, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Italy
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Wilken N, Kamasamudram K, Currier NW, Li J, Yezerets A, Olsson L. Heat of adsorption for NH3, NO2 and NO on Cu-Beta zeolite using microcalorimeter for NH3 SCR applications. Catal Today 2010. [DOI: 10.1016/j.cattod.2010.02.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Modelling of a combined NOx storage and NH3-SCR catalytic system for Diesel exhaust gas aftertreatment. Catal Today 2010. [DOI: 10.1016/j.cattod.2010.01.014] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Sjövall H, Blint RJ, Gopinath A, Olsson L. A Kinetic Model for the Selective Catalytic Reduction of NOx with NH3 over an Fe−zeolite Catalyst. Ind Eng Chem Res 2009. [DOI: 10.1021/ie9003464] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hanna Sjövall
- Chemical Reaction Engineering and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, General Motors R&D Center, Chemical and Environmental Sciences Laboratory, 30500 Mound Rd, Warren, Michigan 48090-9055 and General Motors R&D India Science Lab, Creator Building, 2nd Floor, ITPB, Whitefield Road, Bangalore 560066, India
| | - Richard J. Blint
- Chemical Reaction Engineering and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, General Motors R&D Center, Chemical and Environmental Sciences Laboratory, 30500 Mound Rd, Warren, Michigan 48090-9055 and General Motors R&D India Science Lab, Creator Building, 2nd Floor, ITPB, Whitefield Road, Bangalore 560066, India
| | - Ashok Gopinath
- Chemical Reaction Engineering and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, General Motors R&D Center, Chemical and Environmental Sciences Laboratory, 30500 Mound Rd, Warren, Michigan 48090-9055 and General Motors R&D India Science Lab, Creator Building, 2nd Floor, ITPB, Whitefield Road, Bangalore 560066, India
| | - Louise Olsson
- Chemical Reaction Engineering and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, General Motors R&D Center, Chemical and Environmental Sciences Laboratory, 30500 Mound Rd, Warren, Michigan 48090-9055 and General Motors R&D India Science Lab, Creator Building, 2nd Floor, ITPB, Whitefield Road, Bangalore 560066, India
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NH3–NO/NO2 SCR for Diesel Exhausts Aftertreatment: Reactivity, Mechanism and Kinetic Modelling of Commercial Fe- and Cu-Promoted Zeolite Catalysts. Top Catal 2009. [DOI: 10.1007/s11244-009-9354-6] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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