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Catalytic performance of commercial Cu-ZSM-5 zeolite modified by desilication in NH3-SCR and NH3-SCO processes

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Catalytic performance of commercial Cu-ZSM-5 zeolite modified by desilication in NH3-SCR and NH3-SCO processes

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dc.contributor.author Rutkowska, Malgorzata es_ES
dc.contributor.author Pacia, I. es_ES
dc.contributor.author Basag, S. es_ES
dc.contributor.author Kowalczyk, A. es_ES
dc.contributor.author Piwowarska, Z. es_ES
dc.contributor.author Duda, M. es_ES
dc.contributor.author Tarach, K.A. es_ES
dc.contributor.author Gora-Marek, K. es_ES
dc.contributor.author Michalik, M. es_ES
dc.contributor.author DÍAZ MORALES, URBANO MANUEL es_ES
dc.contributor.author Chmielarz, Lucjan es_ES
dc.date.accessioned 2020-07-30T03:35:49Z
dc.date.available 2020-07-30T03:35:49Z
dc.date.issued 2017-07-01 es_ES
dc.identifier.issn 1387-1811 es_ES
dc.identifier.uri http://hdl.handle.net/10251/148913
dc.description.abstract [EN] In the presented manuscript an influence of the mesoporosity generation in commercial ZSM-5 zeolite on its catalytic performance in two environmental processes, such as NO reduction with ammonia (NH3SCR, Selective Catalytic Reduction of NO with NH3) and NH3 oxidation (NH3-SCO, Selective Catalytic Oxidation of NH3) was examined. Micro-mesoporous catalysts with the properties of ZSM-5 zeolite were obtained by desilication with NaOH and NaOH/TPAOH (tetrapropylammonium hydroxide) mixture with different ratios (TPA+/OH- = 0.2, 0.4, 0.6, 0.8 and infinity) and for different durations (1, 2, 4 and 6 h). The results of the catalytic studies (over the Cu-exchanged samples) showed higher activity of this novel mesostructured group of zeolitic materials. Enhanced catalytic performance was related to the generated mesoporosity (improved Hierarchy Factor (HF) of the samples), that was observed especially with the use of Pore Directing Agent (PDA) additive, TPAOH. Applied desilication conditions did not influence significantly the crystallinity of the samples (X-ray diffraction analysis (XRD)), despite the treatment for 6 h in NaOH solution, which was found to be too severe to preserve the zeolitic properties of the samples. The modified porous structure and accessibility of acid sites (increased surface acidity determined by temperature programmed desorption of ammonia (NH3-TPD)) influenced the red-ox properties of copper species introduced by ion-exchange method (temperature programmed reduction with hydrogen (H-2-TPR). Increased acidity of the micro-mesoporous samples, as well as the content of easily reducible copper species resulted in a significant improvement of Cu-ZSM-5 catalytic efficiency in the NH3-SCR and NH3-SCO processes. (C) 2017 Elsevier Inc. All rights reserved. es_ES
dc.description.sponsorship This work was supported by the National Science Center under grant no. 2011/03/N/ST5/04820. Part of the research was carried out with the equipment purchased thanks to the financial support of the European Regional Development Fund in the framework of the Polish Innovation Economy Operational Program (contract no. POIG.02.01.00-12-023/08). U. D. acknowledges to Spanish Government by the funding (MAT2014-52085-C2-1-P). es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Microporous and Mesoporous Materials es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject ZSM-5 es_ES
dc.subject Desilication es_ES
dc.subject Pore directing agent es_ES
dc.subject NH3-SCR es_ES
dc.subject NH3-SCO es_ES
dc.title Catalytic performance of commercial Cu-ZSM-5 zeolite modified by desilication in NH3-SCR and NH3-SCO processes es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.micromeso.2017.03.017 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//MAT2014-52085-C2-1-P/ES/NUEVOS MATERIALES CON DIFERENTES CENTROS ACTIVOS INCORPORADOS EN POSICIONES ESPECIFICAS DE LA RED Y SU APLICACION PARA PROCESOS CATALITICOS MULTI-ETAPA Y NANOTECNOLOGICOS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/FNP//POIG.02.01.00-12-023%2F08/PL/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/NCN//2011%2F03%2FN%2FST5%2F04820/ es_ES
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Rutkowska, M.; Pacia, I.; Basag, S.; Kowalczyk, A.; Piwowarska, Z.; Duda, M.; Tarach, K.... (2017). Catalytic performance of commercial Cu-ZSM-5 zeolite modified by desilication in NH3-SCR and NH3-SCO processes. Microporous and Mesoporous Materials. 246:193-206. https://doi.org/10.1016/j.micromeso.2017.03.017 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.micromeso.2017.03.017 es_ES
dc.description.upvformatpinicio 193 es_ES
dc.description.upvformatpfin 206 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 246 es_ES
dc.relation.pasarela S\358634 es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES
dc.contributor.funder Foundation for Polish Science es_ES
dc.contributor.funder National Science Centre, Polonia es_ES
dc.contributor.funder European Regional Development Fund es_ES


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