Mechanism of NO Adsorption on H-ZSM-5 under Aerobic Atmosphere

Abstract

NO adsorption behavior on H-ZSM-5 was investigated using a fixed-bed reactor and the adsorption mechanism was studied by temperature programmed desorption (TPD), in-situ Fourier transform infrared spectroscopy (FTIR) and thermogravimetric (TG) analysis. Results showed that heat releasing area (HRA) occurred at the beginning of NO and O₂ co-adsorption on H-ZSM-5, and after the disappearance of HRA, zeolites with different silicate-aluminum ratios showed different adsorption efficiency. The impurities in flue gas had a negative effect on the adsorption of NO and the influence could be ranked in descending order as follows: SO₂ > H₂O > CO₂. TPD and FTIR analyses suggested that nitrates were formed during exposure of zeolites to NO without O₂ and different kinds of nitrogen oxides were observed after O₂ was added into the system. An adsorption mechanism involving rapid oxidation of NO was proposed to explain the NO adsorption behavior under aerobic atmosphere. This work may be crucial for understanding the catalysis mechanism of metal ion-based ZSM-5 zeolites and the design of proper catalyst supporter.

References

[1] ShiY. Reducing Greenhouse Gas Emissions from International Shipping: Is It Time to Consider Market-based Measures?[J]. Mar. Policy, 2016, 64: 123-134

[2] DhalG C, DeyS, MohanD, et al.. Simultaneous Abatement of Diesel Soot and NO_x Emissions by Effective Catalysts at Low Temperature: An Overview[J]. Catal. Rev.: Sci. Eng., 2018, 60: 437-496

[3] EyringV, IsaksenI S A, BerntsenT, et al.. Transport Impacts on Atmosphere and Climate: Shipping[J]. Atmos. Environ., 2010, 44: 4735-4771

[4] VerschaerenR, SchaepdryverW, SerruysT, et al.. Experimental Study of NO_x Reduction on A Medium Speed Heavy Duty Diesel Engine by the Application of EGR (Exhaust Gas Recirculation) and Miller Timing[J]. Energy, 2014, 76: 614-621

[5] BrynolfS, FridellE, AnderssonK. Environmental Assessment of Marine Fuels: Liquefied Natural Gas, Liquefied Biogas, Methanol and Bio-methanol[J]. J. Cleaner Prod., 2014, 74: 86-95

[6] LiuY Z, ZhaoJ, LeeJ M. Conventional and New Materials for Selective Catalytic Reduction (SCR) of NO_x[J]. Chem. Cat. Chem., 2018, 10: 1499-1511

[7] González-VelascoJ R, Pereda-AyoB, De-La-TorreU, et al.. NO_x Storage and Reduction Coupled with Selective Catalytic Reduction for NO_x Removal in Light-duty Vehicles[J]. Chem. Cat. Chem., 2018, 10: 2 928

[8] SunQ, ZengC, XingM M, et al.. Efficiently Engineering Cu-based Oxide by Surface Embedding of Ce for Selective Catalytic Reduction of NO with NH₃[J]. Nano., 2019, 14: 1 950 079

[9] LvX, ZhangL, ZhanS, et al.. Low-temperature Selective Catalytic Reduction of NO with NH₃ Over Mn-Fe Mixed Metal Oxides on the Nitric Vapor Functionalized Carbon Nanotubes Prepared by A Polyol Process[J]. Nano., 2017, 12: 1 750 048

[10] LiuF D, YuY B, HeH. Environmentally-benign Catalysts for the Selective Catalytic Reduction of NO_x from Diesel Engines: Structure-activity Relationship and Reaction Mechanism Aspects[J]. Chem. Commun., 2014, 50: 8445-8463

[11] GuanB, ZhanR, LinH, et al.. Review of State of the Art Technologies of Selective Catalytic Reduction of NO_x from Diesel Engine Exhaust[J]. Appl. Therm. Eng., 2014, 66(1–2): 395-414

[12] MaZ, WuX, FengY, et al.. Low-temperature SCR Activity and SO₂ Deactivation Mechanism of Ce-modified V₂O₅–WO₃/TiO₂ Catalyst[J]. Prog. Nat. Sci., 2015, 25(4): 342-352

[13] GouX, WuC, ZhangK, et al.. Low Temperature Performance of Selective Catalytic Reduction of NO with NH₃ under A Concentrated CO₂ Atmosphere[J]. Energies, 2015, 8(11): 12331-12341

[14] GrossaleA, NovaI, TronconiE. Ammonia Blocking of the “Fast SCR” Reactivity over A Commercial Fe-zeolite Catalyst for Diesel Exhaust Aftertreatment[J]. J. Catal., 2009, 265(2): 141-147

[15] ColomboM, NovaI, TronconiE. A Comparative Study of the NH₃-SCR Reactions over A Cu-zeolite and A Fe-zeolite Catalyst[J]. Catal. Today, 2010, 151(3–4): 223-230

[16] MarchittiF, NovaI, TronconiE. Experimental Study of the Interaction between Soot Combustion and NH₃-SCR Reactivity over A Cu–Zeolite SDPF Catalyst[J]. Catal. Today, 2016, 267: 110-118

[17] YanQ, NieY, YangR, et al.. Highly Dispersed Cu_yAlO_x Mixed Oxides as Superior Low-temperature Alkali Metal and SO₂ Resistant NH₃-SCR Catalysts[J]. Appl. Catal., A, 2017, 538: 37-50

[18] Guisnet M, Magnoux P, Canaff C. New Developments in Zeolite Science and Technology[M]. Amsterdam: Elsevier, 1986

[19] EngJ, BartholomewC H. Kinetic and Mechanistic Study of NO_x Reduction by NH₃ over H-form Zeolites. 1. Kinetic and Mechanistic Insights into NO Reduction over H-ZSM-5[J]. J. Catal., 1997, 171(1): 14-26

[20] MikaelaW, Carl-JohanK, MagnusS, et al.. Selective Catalytic Reduction of NO_x with NH₃ over Zeolite H-ZSM-5: Influence of Transient Ammonia Supply[J]. J. Catal., 2003, 218(2): 354-364

[21] OlssonL, SjövallH, BlintR J. Detailed Kinetic Modeling of NO_x Adsorption and NO Oxidation over Cu-ZSM-5[J]. Appl. Catal., B, 2009, 87(3–4): 200-210

[22] RuggeriM P, SelleriT, ColomboM, et al.. Identification of Nitrites/HONO as Primary Products of NO Oxidation over Fe-ZSM-5 and Their Role in the Standard SCR Mechanism: A Chemical Trapping Study[J]. J. Catal., 2014, 311: 266-270

[23] RuggeriM P, SelleriT, ColomboM, et al.. Investigation of NO₂ and NO Interaction with An Fe-ZSM-5 Catalyst by Transient Response Methods and Chemical Trapping Techniques[J]. J. Catal., 2015, 328: 258-269

[24] SelleriT, NovaI, TronconiE. The Low-temperature Interaction of NH₃/NO/NO₂+O₂ with Fe-ZSM-5 + BaO/Al₂O₃ and H-ZSM-5 + BaO/Al₂O₃: Influence of Phase Separation and Relevance for the NH₃-SCR Chemistry[J]. Appl. Catal., B, 2017, 206: 471-478

[25] StevensonS A, VartuliJ C, BrooksC F. Kinetics of the Selective Catalytic Reduction of NO over HZSM-5[J]. J. Catal., 2000, 190(2): 228-239

[26] PenkovaA, HadjiivanovK, MihaylovM, et al.. FTIR Spectroscopic Study of Low Temperature NO Adsorption and NO + O₂ Coadsorption on H-ZSM-5[J]. Langmuir, 2004, 20(13): 5425-5431

[27] SzanyiJ, PaffettM T. The Adsorption of NO and Reaction of NO with O₂ on H-, NaH-, CuH-, and Cu-ZSM-5: Anin SituFTIR Investigation[J]. J. Catal., 1996, 164(1): 232-245

[28] HadjiivanovK, SausseyJ, FreyszJ, et al.. FT-IR Study of NO+ O₂ Co-adsorption on H-ZSM-5: Re-assignment of the 2 133 cm⁻¹ Band to NO⁺ Species[J]. Catal. Lett., 1998, 52(1): 103-108

[29] ZhangW J, RabieiS, BagreevA, et al.. Study of NO Adsorption on Activated Carbons[J]. Appl. Catal., B, 2008, 83(1–2): 63-71

[30] ShimomuraS, HiguchiM, MatsudaR, et al.. Selective Sorption of Oxygen and Nitric Oxide by An Electron-donating Flexible Porous Coordination Polymer[J]. Nat. Chem., 2010, 2(8): 633-637

[31] AdelmanB, LeiG D, SachtlerW. Co-adsorption of Nitrogen Monoxide and Nitrogen Dioxide in Zeolitic De-NO_x Catalysts[J]. Catal. Lett., 1994, 28(2): 119-130

[32] DecykP, KimD K, WooS I. Poisoning Effect of SO₂ on NO Reduction by i-Butane over Fe/ZSM-5 Prepared by Sublimation Method[J]. J. Catal., 2001, 203(2): 369-374

[33] HadjiivanovK I. Identification of Neutral and Charged N_xO_y Surface Species by IR Spectroscopy[J]. Cat. Rev. - Sci. Eng., 2000, 42(1–2): 71-144

[34] ParvulescuV I, OelkerP, GrangeP, et al.. NO Decomposition over Bicomponent Cu-Sm-ZSM-5 Zeolites[J]. Appl. Catal., B, 1998, 16(1): 1-17

[35] SpotoG, BordigaS, ScaranoD, et al.. Well Defined Cu^I(NO), Cu^I(NO)₂ and Cu^II(NO)X(X= O⁻ and/or NO₂⁻) Complexes in Cu^I-ZSMS Prepared by Interaction of H-ZSM5 with Gaseous CuCl[J]. Catal. Lett., 1992, 13(1): 39-44

[36] TanakaT, OkuharaT, MisonoM. Intermediacy of Organic Nitro and Nitrite Surface Species in Selective Reduction of Nitrogen Monoxide by Propene in the Presence of Excess Oxygen Over Silica-supported Platinum[J]. Appl. Catal. B, 1994, 4(1): L1-L9

[37] KantchevaM, VakkasogluA S. Cobalt Supported on Zirconia and Sulfated Zirconia I.: FT-IR Spectroscopic Characterization of the NO_x Species Formed upon NO Adsorption and NO/O₂ Coadsorption[J]. J. Catal., 2004, 223(2): 352-363

[38] SedlmairC, GilB, SeshanK, et al.. An in Situ IR Study of the NO_x Adsorption/Reduction Mechanism on Modified Y Zeolites[J]. Phys. Chem. Chem. Phys., 2003, 5(9): 1897-1905

[39] BentrupU, BrücknerA, RichterM, et al.. NO_x Adsorption on MnO₂/NaY Composite: An in Situ FTIR and EPR Study[J]. Appl. Catal. B, 2001, 32(4): 229-241

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