Abstract
Cu/zeolite catalysts have long been recognized to be highly active in the Selective Catalytic Reduction (SCR) of NOx with NH3 [1–16]. Compared to titania supported vanadia SCR catalysts, which have been successfully commercialized for stationary NOx emission control since the 1970s and installed on certain Heavy Duty Diesel (HDD) vehicles to meet the NOx emission regulations since the early 2000s, Cu/zeolite SCR catalysts exhibit higher NOx conversion efficiency, particularly at low temperatures [11, 17]. In addition, Cu/zeolite SCR catalysts are more tolerant to high temperature excursions. For automotive applications, this is a critical requirement for the SCR component when it is combined with a Diesel Particulate Filter (DPF) in the emission control system. In order to effectively regenerate the DPF component, the entire system is exposed to temperatures above 600 °C periodically. Cu/zeolite SCR catalysts are significantly more stable than vanadium-based SCR catalysts at temperatures above 650 °C.
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References
Seiyama T, Arakawa T, Matsuda T et al (1977) Catalytic activity of transition metal ion exchanged Y zeolites in the reduction of nitric oxide with ammonia. Journal of Catalysis 48:1–7
Komatsu T, Nunokawa M, Moon IS et al (1994) Kinetic Studies of Reduction of Nitric Oxide with Ammonia on Cu2+-Exchanged Zeolites. Journal of Catalysis 148:427–437
Mizumoto M, Yamazoe N, Seiyama T (1979) Effects of coexisting gases on the catalytic reduction of NO with NH3 over Cu(II) NaY. Journal of Catalysis 59:319–324
Centi G, Perathoner S (1995) Nature of active species in copper-based catalysts and their chemistry of transformation of nitrogen oxides. Applied Catalysis A: General 132:179–259
Andersson LAH, Brandin JGM, Odenbrand CUI (1989) Selective catalytic reduction of NOx over acid-leached mordenite catalysts. Catalysis Today 4:173–185
Palomares AE, Prato JG, Corma A (2002) A new active zeolite structure for the selective catalytic reduction (SCR) of nitrogen oxides, ITQ7 zeolite, the influence of NO2 on this reaction. Catalysis Today 75:367–371
Delahay G, Coq B, Kieger S et al (1999) The origin of N2O formation in the selective catalytic reduction of NOx by NH3 in O2 rich atmosphere on Cu-faujasite catalysts. Catalysis Today 54:431–438
Delahay G, Kieger S, Tanchoux N et al (2004) Kinetics of the selective catalytic reduction of NO by NH3 on a Cu-faujasite catalyst. Applied Catalysis B: Environmental 52:251–257
Xu L, McCabe RW, Hammerle RH (2002) NOx self-inhibition in selective catalytic reduction with urea (ammonia) over a Cu-zeolite catalyst in diesel exhaust. Applied Catalysis B: Environmental 39:51–63
Tennison P, Lambert C, Levin M (2004) NOx Control Development with Urea SCR on a Diesel Passenger Car. SAE Technical Paper 2004–01–1292
Lambert C, Cavataio G, Cheng Y et al (2006) Urea SCR and DPF system for Tier 2 diesel light-duty trucks. DEER Conference 2006. [Online] Available: http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2006/session5/2006_deer_lambert.pdf.
Schmieg SJ, Lee J-H (2005) Evaluation of supplier catalyst fromulations for the selective catalytic reduction of NOx with ammonia. SAE Technical Paper 2005–01–3881
Baik JH, Yim SD, Nam I-S et al (2004) Control of NOx emissions from diesel engine by selective catalytic reduction (SCR) with urea. Topics in Catalysis 30/31:37–41
Park J-H, Park HJ, Baik JH et al (2006) Hydrothermal stability of CuZSM5 catalyst in reducing NO by NH3 for the urea selective catalytic reduction process. Journal of Catalysis 240:47–57
Pârvulescu VI, Grange P, Delmon B (1998) Catalytic removal of NO. Catalysis Today 46:233–316
Brandenberger S, Kröcher O, Tissler A et al (2008) The State of the art in selective catalytic reduction of NOx by ammonia using metal‐exchanged zeolite catalysts. Catalysis Reviews 50:492–531
Kamasamudram K, Currier NW, Chen X et al (2010) Overview of the practically important behaviors of zeolite-based urea-SCR catalysts, using compact experimental protocol. Catalysis Today 151:212–222
Kamasamudram K, Currier NW, Szailer T et al (2010) Why Cu- and Fe-zeolite SCR catalysts behave differently at low temperatures. SAE Technical Paper 2010–01–1182
Cheng Y, Xu L, Hangas J et al (2007) Laboratory postmortem analysis of 120 k mi engine aged urea SCR catalyst. SAE Technical Paper 2007–01–1579
Ishihara T, Kagawa M, Hadama F et al (1997) Copper ion-exchanged SAPO-34 as a thermostable catalyst for selective reduction of NO with C3H6. Journal of Catalysis 169:93–102
Zones SI, Yuen LT, Miller SJ (2004) Small crystallite zeolite CHA. U.S. Patent US 6,709,644
Bull I, Xue WM, Burk P et al (2009) Copper CHA zeolite catalysts. U.S. Patent US 7,601,662
Andersen PJ,Bailie JE, Casci JL et al (2008) Transition metal/zeolite SCR catalysts. Patent application WO 2008/132452
Database of zeolite structures. [Online]. Available: http://www.iza-structure.org/databases/
Fedeyko JM, Chen B, Chen H-Y (2010) Mechanistic study of the low temperature activity of transition metal exchanged zeolite SCR catalysts. Catalysis Today 151:231–236
Cruciani G (2006) Zeolites upon heating: Factors governing their thermal stability and structural changes. Journal of Physics and Chemistry of Solids 67:1973–1994
Wang QL, Giannetto G, Torrealba M et al (1991) Dealumination of zeolites II, kinetic study of the dealumination by hydrothermal treatment of a NH4NaY zeolite. Journal of Catalysis 130:459–470
Sano T, Ikeya H, Kasuno T et al (1997) Influence of crystallinity of HZSM-5 zeolite on its dealumination rate. Zeolites 19:80–86
Grinsted RA, Jen H-W, Montreuil CN et al (1993) The relation between deactivation of CuZSM-5 in the selective reduction of NO and dealumination of the zeolite. Zeolites 13:602–606
Yan JY, Sachtler WMH, Kung HH (1997) Effect of Cu loading and addition of modifiers on the stability of Cu/ZSM-5 in lean NOx reduction catalysis. Catalysis Today 33:279–290
Wilken N, Wijayanti K, Kamasamudram K et al (2012) Mechanistic investigation of hydrothermal aging of Cu-Beta for ammonia SCR. Applied Catalysis B: Environmental 111–112:58–66
Kharas KCC, Robota HJ, Liu DJ (1993) Deactivation in Cu-ZSM-5 lean-burn catalysts. Applied Catalysis B: Environmental 2:225–237
Ding L, Zheng Y, Hong Y et al (2007) Effect of particle size on the hydrothermal stability of zeolite beta. Microporous and Mesoporous Materials 101:432–439
Kucherov AV, Hubbard CP, Shelef M (1995) Rearrangement of cationic sites in CuH-ZSM-5 and reactivity loss upon high-temperature calcination and steam aging. Journal of Catalysis 157:603–610
Chang HL, Chen H-Y, Fedeyko JM et al (2007) Thermal durability and deactivation of Cu-zeolite SCR catalyst. Paper presented at the 20th North American Catalysis Society Meeting
Fedeyko JM, Chen H-Y, Ballinger TH et al (2009) Development of thermally durable Cu/SCR catalysts. SAE Technical Paper 2009–01–0899
Andersen PJ, Casci JL, Chen H-Y et al (2011) Small pore molecular sieve supported transition metal catalysts for the selective catalytic reduction of NOx with NH3. Paper presented at the 22nd North American Society Meeting
Jardim PM, Marinkovic BA, Saavedra A et al (2004) A comparison between thermal expansion properties of hydrated and dehydrated orthorhombic HZSM-5 zeolite. Microporous and Mesoporous Materials 76:23–28
Long RQ, Yang RT (2002) Selective catalytic reduction of NO with ammonia over Fe3+-exchanged mordenite (Fe–MOR): catalytic performance, characterization, and mechanistic study. Journal of Catalysis 207:274–285
Cavataio G, Girard J, Patterson J et al (2007) Laboratory testing of urea-SCR formulations to meet Tier 2 Bin 5 emissions. SAE Technical Paper 2007–01–1575
Montreuil CN, Lambert C (2008) The effect of hydrocarbons on the selective catalyzed reduction of NOx over low and high temperature catalyst fromulations. SAE Technical Paper 2008–01–1030
Girard J, Snow R, Cavataio G et al (2008) Influence of hydrocarbon storage on the durability of SCR catalysts. SAE Technical Paper 2008–01–0767
Cheng Y, Montreuil CN, Cavataio G et al (2008) Sulfur tolerance and DeSOx studies on diesel SCR catalysts. SAE Technical Paper 2008–01–1023
Cheng Y, Montreuil CN, Cavataio G et al (2009) The effects of SO2 and SO3 poisoning on Cu/zeolite SCR catalysts. SAE Technical Paper 2009–01–0898
Cheng Y, Lambert C, Kim DH et al (2010) The different impacts of SO2 and SO3 on Cu/zeolite SCR catalysts. Catalysis Today 151:266–270
Yim SD, Kim SJ, Baik JH et al (2004) Decomposition of Urea into NH3 for the SCR Process. Industrial & Engineering Chemistry Research 43:4856–4863
Xu L, WatkinsW, Snow R et al (2007) Laboratory and engine study of urea-related deposits in diesel urea-SCR after-treatment systems. SAE Technical Paper 2007–01–1582
Cheng Y, Hoard J, Lambert C et al (2008) NMR studies of Cu/zeolite SCR catalysts hydrothermally aged with urea. Catalysis Today 136:34–39
Schmieg SJ, Oh SH, Kim CH et al (2012) Thermal durability of Cu-CHA NH3-SCR catalysts for diesel NOx reduction. Catalysis Today 184:252–261
Cavataio G, Jen HW, Dobson D et al (2009) Laboratory study to determine impact of Na and K exposure on the durability of DOC and SCR catalyst formulations. SAE Technical Paper 2009–11–02
Ishihara T,Kagawa M, Mizuhara Y et al (1992) Selective reduction of nitrogen monoxide with propene over Cu-silicoaluminophosphate (SAPO) under oxidizing atmosphere. Chemistry Letters 2119–2122.
Akolekar DB, Bhargava SK, Foger K (1998) FTIR investigations of the adsorption and disproportionation of NO on Cu-exchanged silicoaluminophophate of type 34. Journal of Chem. Soc., Faraday Trans 94:155–160
Frache A, Palella BI,Cadoni M et al (2003) CuAPSO-34 catalysts for N2O decomposition in the presence of H2O. Topics in Catalysis 22:53–57
Frache A, Palella B, Cadoni M et al (2002) Catalytic DeNOx activity of cobalt and copper ions in microporous MeALPO-34 and MeAPSO-34. Catalysis Today 75:359–365
Poignant F, Saussey J, Lavalley JC et al (1995) NH3 formation during the reduction of nitrogen monoxide by propane on H-Cu-ZSM-5 in excess oxygen. Journal of the Chemical Society, Chemical Communications 1:89–90
Poignant F, Saussey J, Lavalley JC et al (1996) In situ FT-IR study of NH3 formation during the reduction of NOx with propane on H/Cu-ZSM-5 in excess oxygen. Catalysis Today 29:93–97
Chen H-Y, Sun Q, Wen B et al (2004) Reduction over zeolite-based catalysts of nitrogen oxides in emissions containing excess oxygen: unraveling the reaction mechanism. Catalysis Today 96:1–10
Fickel DW, Lobo RF (2009) Copper coordination in Cu-SSZ-13 and Cu-SSZ-16 investigated by variable-temperature XRD. The Journal of Physical Chemistry C 114:1633–1640
Fickel DW, D’Addio E, Lauterbach JA et al (2011) The ammonia selective catalytic reduction activity of copper-exchanged small-pore zeolites. Applied Catalysis B: Environmental 102:441–448
Ye Q, Wang L, Yang RT (2012) Activity, propene poisoning resistance and hydrothermal stability of copper exchanged chabazite-like zeolite catalysts for SCR of NO with ammonia in comparison to Cu/ZSM-5. Applied Catalysis A: General 427/428:24–34
Moliner M, Franch C, Palomares E et al (2012) Cu-SSZ-39, an active and hydrothermally stable catalyst for the selective catalytic reduction of NOx, Chemical Communications 48:8264–8266
Erichinger M, Maletz G, Eisert K (2011) KFI-type copper-containing zeolite and use in SCR catalyst. Patent application WO 2011/098512
Lorena Picone A, Warrender SJ, Slawin AMZ et al (2011) A co-templating route to the synthesis of Cu SAPO STA-7, giving an active catalyst for the selective catalytic reduction of NO. Microporous and Mesoporous Materials 146: 36–47
Ren L, Zhu L, Yang C et al (2011) Designed copper-amine complex as an efficient template for one-pot synthesis of Cu-SSZ-13 zeolite with excellent activity for selective catalytic reduction of NOx by NH3. Chemical Communications 47:9789–9791
Deka U,Lezcano-Gonzalez I, Warrender SJ et al (2013) Changing active sites in Cu–CHA catalysts: deNOx selectivity as a function of the preparation method. Microporous and Mesoporous Materials 166:144–152
Martínez-Franco R, Moliner M, Franch C et al (2012) Rational direct synthesis methodology of very active and hydrothermally stable Cu-SAPO-34 molecular sieves for the SCR of NOx. Applied Catalysis B: Environmental 127:273–280
Kwak JH, Tonkyn RG, Kim DH et al (2010) Excellent activity and selectivity of Cu-SSZ-13 in the selective catalytic reduction of NOx with NH3. Journal of Catalysis 275:187–190
Kwak JH, Tran D, Burton SD et al (2012) Effects of hydrothermal aging on NH3-SCR reaction over Cu/zeolites. Journal of Catalysis 287:203–209
Castagnola M, Caserta J, Chatterjee S et al (2011) Engine performance of Cu- and Fe-based SCR emission control systems for heavy duty diesel applications. SAE Technical Paper 2011–01–1329
Tang W, Huang X, Kumar S (2011) Sulfur effect and performance recovery of a DOC + CSF + Cu-zeolite SCR system. Presented at DEER Conference 2011. [Online] Available: http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2011/tuesday/presentations/deer11_tang.pdf
Watanabe Y, Koiwai A, Takeuchi H et al (1993) Multinuclear NMR studies on the thermal stability of SAPO-34. Journal of Catalysis 143:430–436
Palella BI, Cadoni M, Frache A et al (2003) On the hydrothermal stability of CuAPSO-34 microporous catalysts for N2O decomposition: a comparison with CuZSM-5. Journal of Catalysis 217:100–106
Wang L, Li W, Qi G et al (2012) Location and nature of Cu species in Cu/SAPO-34 for selective catalytic reduction of NO with NH3. Journal of Catalysis 289:21–29
Wang J, Yu T, Wang X et al (2012) The influence of silicon on the catalytic properties of Cu/SAPO-34 for NOx reduction by ammonia-SCR. Applied Catalysis B: Environmental 127:137–147
Korhonen ST, Fickel DW, Lobo RF et al (2011) Isolated Cu2+ ions: active sites for selective catalytic reduction of NO. Chemical Communications 47:800–802
Deka U, Juhin A, Eilertsen EA et al (2012) Confirmation of isolated Cu2+ Ions in SSZ-13 zeolite as active sites in NH3-selective catalytic reduction. The Journal of Physical Chemistry C 116:4809–4818
McEwen J-S, Anggara T, Schneider WF et al (2012) Integrated operando X-ray absorption and DFT characterization of Cu–SSZ-13 exchange sites during the selective catalytic reduction of NOx with NH3. Catalysis Today 184:129–144
Kispersky VF, Kropf AJ, Ribeiro FH et al (2012) Low absorption vitreous carbon reactors for operando XAS: a case study on Cu/Zeolites for selective catalytic reduction of NOx by NH3. Physical Chemistry Chemical Physics 14:2229–2238
Acknowledgments
I am very grateful to many of my colleagues at Johnson Matthey for their contributions to the work presented in this chapter. I also want to express my sincere gratitude to many collaborators across industry and academia for their valuable discussions. Finally, I thank Johnson Matthey for the permission of this publication.
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Chen, HY. (2014). Cu/Zeolite SCR Catalysts for Automotive Diesel NOx Emission Control. In: Nova, I., Tronconi, E. (eds) Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts. Fundamental and Applied Catalysis. Springer, New York, NY. https://doi.org/10.1007/978-1-4899-8071-7_5
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