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Rozprawy doktorskie na temat „ZWM”

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Data publikacji: 11 września 2023

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1

Callahan, Jordan J. "Silver-embedded ZSM-5 Zeolites: a Reliable SERS Substrate." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342104242.

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Fernandes, Juliana Esteves. "Catalisadores Cu-, Co- ou Fe-ZSM-5 caracterização e avaliação na redução de NO a N2 com hidrocarbonetos na presença ou ausência de vapor de água." Universidade Federal de São Carlos, 2005. https://repositorio.ufscar.br/handle/ufscar/4146.

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Made available in DSpace on 2016-06-02T19:56:55Z (GMT). No. of bitstreams: 1 DissJEF.pdf: 1826030 bytes, checksum: a3043074648b14bbec76bd05d3190200 (MD5) Previous issue date: 2005-03-04<br>Universidade Federal de Sao Carlos<br>The minimization of the emissions of nitrogen oxides (NOx) in the atmosphere has been one of the great goals in the area of environmental protection. Among the possible processes to treat the NOx, the selective catalytic reduction of NO with hydrocarbons (SCR-HC) has presented important expectations. For this process, the metal/ZSM-5 type catalysts have appropriate
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Barros, Ivoneide de Carvalho Lopes. "Estudo e aplicação dos Sistemas ZSM-5 contendo nióbio." reponame:Repositório Institucional da UnB, 2007. http://repositorio.unb.br/handle/10482/1363.

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Tese (doutorado)—Universidade de Brasília, Instituto de Química, 2007.<br>Submitted by Luis Felipe Souza (luis_felas@globo.com) on 2009-01-08T12:20:12Z No. of bitstreams: 1 Tese_2007_IvoneideBarros.pdf: 3390296 bytes, checksum: 2bd94256449111f511c6d9dad708ee99 (MD5)<br>Approved for entry into archive by Georgia Fernandes(georgia@bce.unb.br) on 2009-02-27T14:59:03Z (GMT) No. of bitstreams: 1 Tese_2007_IvoneideBarros.pdf: 3390296 bytes, checksum: 2bd94256449111f511c6d9dad708ee99 (MD5)<br>Made available in DSpace on 2009-02-27T14:59:03Z (GMT). No. of bitstreams: 1 Tese_2007_IvoneideBarros.pdf
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Alnaimi, Essa. "Maximizing propylene selectivity while minimizing dry gas yield in FCC unit through post synthetic modifications of nano ZSM-5." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/maximizing-propylene-selectivity-while-minimizing-dry-gas-yield-in-fcc-unit-through-post-synthetic-modifications-of-nano-zsm5(fca15721-f78d-47b8-aec6-586c880fecba).html.

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This research explored different catalytic cracking zeolite additives to improve propylene selectivity and minimize dry gas yield. A comprehensive study of the effect of zeolite structure, pore system and crystal size on maximizing propylene production in FCC unit and the effect of post synthetic modifications on the physicochemical properties and cracking activity of ZSM-5 was investigated using X-ray diffraction (XRD), pyridine adsorption fourier transform infra-red (FTIR), 27Al and 29Si magic-angle spinning nuclear magnetic resonance (MAS NMR) and the catalytic cracking using n-heptane, as
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5

Losch, Pit. "Synthesis and characterisation of zeolites, their application in catalysis and subsequent rationalisation : methanol-to-olefins (MTO) process with designed ZSM-5 zeolites." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAF035/document.

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Cette thèse s'articule autour des zéolithes, plus particulièrement leur synthèse, leur caractérisation et leur application comme catalyseurs hétérogènes. Dans certains cas, la compréhension des phénomènes encontrés au cours de ce processus nécessitait un travail de rationalisation. Ce dernier ingrédient permet une réelle amélioration continue, ou une conception sur mesure d'un catalyseur pour une réaction. Les zéolithes sont des aluminosilicates, microporeux et cristallins, qui se définissent et se différencient de part leur arrangement 3D de tétraèdres (SiO4 et AlO4) . Il a été essayé d'utili
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6

Sousa, Jennifer Caroline de. "Efeitos de glicocorticoide sobre a expressão de genes de relógio nas células ZEM-2S de Danio rerio." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/41/41135/tde-20052015-104948/.

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O estudo da expressão circadiana de genes de relógio tem sugerido hormônios como potenciais agentes sincronizadores. A regulação da ritmicidade de relógios periféricos é, aparentemente, mais um dentre os diferentes efeitos fisiológicos atribuídos aos glicocorticoides (GCs), que se constituem como candidatos a zeitgeber dado ao fato de que seus níveis circulantes apresentam padrões diários robustos e são uma das principais eferências do relógio central em mamíferos. Entretanto, em outros vertebrados, o papel dessa classe hormonal em relação a este aspecto ainda é pouco explorado e se a regulaçã
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7

Khangkham, Supaporn. "Catalytic degradation of poly(methyl methacrylate) by zeolites and regeneration of used zeolites via ozonation." Phd thesis, Toulouse, INPT, 2012. http://oatao.univ-toulouse.fr/9227/1/khangkham.pdf.

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Catalytic degradation of PMMA was successfully performed at temperatures below 300°C. The use of zeolite catalyst could reduce reaction temperature in comparison with an ordinary thermal degradation process. It was found that the product distribution obtained from batch experiment depends on zeolite acid properties whereas the composition of the liquid fraction is directly related to the shape selectivity of the catalyst. A continuous fixed bed process was designed that allowed to obtain MMA monomer as main product. The increase of reaction temperature from 200 to 270°C showed a positive effec
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8

Backhaus, Sita. ""Buffy" und "Sabrina" - Mystery für Mädchen Untersuchungen zu neueren TV-Serien und deren Begleitbüchern sowie ihrer Rezeption /." [S.l. : s.n.], 2003. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11612104.

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9

Silva, Silvia Caroline Gomes dos Santos. "Síntese de materiais compósitos micro-mesoporosos visando a captura de CO2." Universidade Federal de Sergipe, 2015. http://ri.ufs.br:8080/xmlui/handle/123456789/3479.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>factor responsible for climate change worldwide. In recent years, several research are intended to developing new methods and technologies to capture and separation CO2. The use of the adsorption method for separating CO2 is a promising alternative in view of the potential to reduce energy costs by eliminating aqueous solutions and providing capture and regeneration rates adequate. In this context, this paper presents the synthesis of composite type materials ZSM-12 / MCM-41 and ZSM-12 / MCM-48, seeking to combining the properties
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10

Göhlich, Maik. "Zum Einfluss textureller, struktureller und acider Eigenschaften phosphorsäuremodifizierter ZSM-5-Zeolithe auf die heterogen-katalysierte Umsetzung von Glycerol." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-66789.

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Die Nutzung von Kraftstoffen auf der Basis von Biodiesel erlaubt es, konventionelle, etablierte Antriebstechniken mit Nachhaltigkeit zu kombinieren. Daher kann in den nächsten Jahren mit einer weiteren weltweiten Steigerung der Biodieselproduktion gerechnet werden. Damit verbunden ist jedoch auch ein Anstieg der anfallenden Menge an Glycerol, das bei der Herstellung von Biodiesel als Koppelprodukt entsteht. Da traditionelle Märkte für Glycerol kaum mehr Wachstum zeigen, müssen neue Wege zur effizienten Verwertung von Glycerol gefunden werden. Die vorliegende Arbeit beschäftigt sich mit der het
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11

Sousa, Zilacleide da Silva Barros. "Transformação de metanol em olefinas leves catalisada por zeólitas HZSM-5." Universidade do Estado do Rio de Janeiro, 2007. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3225.

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A reação de transformação de MeOH em olefinas leves foi investigada sobre zeólitas HZSM-5 com razões SiO2/Al2O3 (SAR) iguais a 30, 80 e 280. As propriedades ácidas e texturais da amostra com SAR 30 foram modificadas por impregnação com ácido fosfórico. A caracterização físico-química das amostras foi realizada empregando-se as técnicas de FRX, fisissorção de N2, DRX, DTP de NH3 e IV com adsorção de piridina. O desempenho catalítico das mesmas foi comparado tanto em condições reacionais similares (mesma T, pressão parcial de MeOH e WHSV) como em condições de isoconversão. Verificou-se, que quan
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12

Kielisch, Jürgen. "Die Geschichte der griechisch-orthodoxen Kirchengemeinde zum Erlöser in München 1828-1944 /." Hamburg : Lit, 1999. http://catalogue.bnf.fr/ark:/12148/cb388003460.

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13

Coskun, Zuhal. "Synthesis And Characterization Of Zsm-35." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1167535/index.pdf.

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14

Yu, Fang. "Abiotic Degradation of Chlorinated Hydrocarbons (CHCs) with Zero-Valent Magnesium (ZVM) and Zero-Valent Palladium/Magnesium Bimetallic (Pd/Mg)-Reductant." Wright State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1373881146.

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15

Gruber, Julia. "Film- und Fernsehbegleitbücher in Öffentlichen Bibliotheken Untersuchung zu Angebot und Nutzung im Regierungsbezirk Tübingen /." [S.l. : s.n.], 2003. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11675515.

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16

Raad, Mira. "Aromatisation du propane sur des catalyseurs bifonctionnels de type Ga-MFI : impact de la hiérarchisation de la zéolithe ZSM-5." Thesis, Poitiers, 2017. http://www.theses.fr/2017POIT2298/document.

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Mélanger un oxyde de gallium avec une zéolithe H-ZSM-5 donne les mêmes résultats catalytiques en craquage du n-hexane, déshydrogénation du cyclohexane et en aromatisation du propane qu'un catalyseur préparer par échange cationique avec un sel de gallium. En fait, le véritable catalyseur est synthétisé lors du prétraitement sous hydrogène pendant lequel le suboxyde de gallium (Ga2O) issu de la réduction de Ga2O3 réagit avec les sites de Brønsted de la zéolithe pour donner des hydrures de gallium. La réaction de déshydrogénation des alcanes fait intervenir un site catalytique bifonctionnel compo
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17

Gomes, Fagner Alves. "Isomerização do n-Hexano por platina suportada na zeólita H-ZSM-5 : efeito do teor de alumínio." Universidade Federal de São Carlos, 2011. https://repositorio.ufscar.br/handle/ufscar/4078.

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Made available in DSpace on 2016-06-02T19:56:44Z (GMT). No. of bitstreams: 1 3706.pdf: 2821060 bytes, checksum: 5975ad59eeeedfbd6e16578292306171 (MD5) Previous issue date: 2011-08-01<br>Universidade Federal de Sao Carlos<br>The objective of this study was to verify the influence of the Si/Al ratio (11.5, 15.0, 25.0, 40.0 and 140.0) in zeolite ZSM-5 in the conversion, activity, selectivity and stability as bifunctional catalysts (Pt/H-ZSM-5) applied to the isomerization reaction of n-hexane. To prepare the bifunctional catalysts, initially the zeolites were submitted, successively, to ion exc
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18

Sieblist, Kerstin, and Barbara Wiermann. "Zum Ersten, zum Zweiten, zum Dritten." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-61234.

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Bei der Auktion „Music and continental books and manuscripts“ in London bei Sotheby’s wurden von der Leipziger Hochschule für Musik und Theater und dem Stadtgeschichtlichen Museum Leipzig zwei seltene Mendelssohn-Autographe erworben. Die Bibliothek der Hochschule für Musik und Theater Leipzig verfügt über eine Sondersammlung zur Geschichte des Hauses, die verschiedene Dokumente zu Mendelssohns Wirken umfasst. Daher passten die angebotenen Objekte in der Auktion in London in den Sammlungskontext der Leipziger Institution.
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19

Silva, Júnior José Roberto da. "Craqueamento de hidrocarbonetos naftênicos sobre zeólitas HZSM-12 modificadas – rendimento e seletividade a olefinas leves." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/8273.

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Submitted by Alison Vanceto (alison-vanceto@hotmail.com) on 2016-10-21T11:11:40Z No. of bitstreams: 1 TeseJRSJ.pdf: 5314232 bytes, checksum: 9352e78958e9a2f45a12e9a77f564bdd (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-11-08T18:37:37Z (GMT) No. of bitstreams: 1 TeseJRSJ.pdf: 5314232 bytes, checksum: 9352e78958e9a2f45a12e9a77f564bdd (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-11-08T18:37:44Z (GMT) No. of bitstreams: 1 TeseJRSJ.pdf: 5314232 bytes, checksum: 9352e78958e9a2f45a12e9a77f564bdd (MD5)<br>Made av
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Doege, Guilherme Martim. "Hipertexto : um protótipo implementado em Zim, para suporte da análise de requisitos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1991. http://hdl.handle.net/10183/27269.

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Neste trabalho se descreve a implementação de um protótipo de sistema de hipertexto, construído sobre o sistema de banco de dados ZIM, para uso na análise de requisitos de sistemas de informações de escritórios. Inicialmente, são apresentadas as principais características dos sistemas de hipertexto, destacando-se o hibridismo entre banco de dados, esquemas de representação e interfaces. Comenta-se a funcionalidade, aplicações, vantagens e desvantagens de hipertextos. A seguir, são mencionados diversos trabalhos apresentados na literatura universal, relacionados com hipertexto. Também são feito
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Boyd, Steven William. "The Use of ZAMAM and MEZIMMAH in Proverbs." Theological Research Exchange Network (TREN), 1985. http://www.tren.com.

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Hausmann, Katharina. ""Die Chance, Bürger zu werden" deutsche Politik unter amerikanischer Besatzung ; die "Heidelberger Aktionsgruppe" ; 1946 - 47." Heidelberg Ubstadt-Weiher Weil am Rhein Basel Verl. Regionalkultur, 2002. http://deposit.ddb.de/cgi-bin/dokserv?id=2789878&prov=M&dok_var=1&dok_ext=htm.

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Xu, Zhi. "Investigations on Molecular Sieve Zeolite Membranes as Proton-Selective Ion Separators for Redox Flow Batteries." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1428049733.

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Hepp, Frieder. "Religion und Herrschaft in der Kurpfalz um 1600 : aus der Sicht des Heidelberger Kirchenrates Dr. Marcus zum Lamm (1544-1606) /." [S.l. : s.n.], 1992. http://www.bsz-bw.de/rekla/show.php?mode=source&id=13.

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Guerra, Patricia. "Effect of supercritical water on coke formed during dodecane cracking with ZSM-5." Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-theses/1301.

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The objective of this work was to study the effect of supercritical water on coke formed on ZSM-5 during its use as a dodecane cracking catalyst. ZSM-5 coking was quantified at different reaction times, finding that the presence of supercritical water reduced coke formation by an order of magnitude or more. Coked samples were analyzed using several methods, including temperature programmed oxidation (TPO), attenuated total reflectance infrared (ATR-IR) spectroscopy, carbon-13 nuclear magnetic resonance (13C NMR), diffuse reflectance ultraviolet-visible spectroscopy (DR-UV-vis) and UV-Raman. Co
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26

Albiero, Jalusa Konzen. "PRODUÇÃO DE OLEFINAS LEVES A PARTIR DE ETANOL EM ZSM-5 SINTETIZADA SEM DIRECIONADOR NITROGENADO." Universidade Federal de Santa Maria, 2015. http://repositorio.ufsm.br/handle/1/7987.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The petrochemical industry is currently strongly based on the production of light olefins ethylene and propylene, which are mainly produced by hydrocarbons from oil. Due to the environmental appeal and unstable oil market scenario, alternative routes to the production of these olefins are being developed, meanly regarding the use of alcohol as raw material. In this context, ethanol is highlighted with Ethanol to Olefins Process (ETO), in which there is catalytic conversion via reactions of dehydration, oligomerization, cracking, is
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Carvalho, Kele Tatiane Gomes. "Zéolitas ZSM-12 mesoporosas textura, cristalinidade e atividade ácida para o craqueamento de cicloexano." Universidade Federal de São Carlos, 2013. https://repositorio.ufscar.br/handle/ufscar/3944.

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Made available in DSpace on 2016-06-02T19:55:38Z (GMT). No. of bitstreams: 1 5665.pdf: 8947970 bytes, checksum: 3a1ee8be44b336d4926a11f4c9cc20eb (MD5) Previous issue date: 2013-09-12<br>Universidade Federal de Sao Carlos<br>The research addressed the generation of mesoporosity in the zeolite ZSM-12 (MTW). In the first part we studied the synthesis of ZSM-12 via conventional methodology and in the presence of a mesopore directing agent, organosilane [3-(Trimethoxy-silyl)propyl] octadecyldimethylammonium chloride (TPOAC). It was verified to influence the TPOAC/SiO2 and H2O/SiO2 ratios and,
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Duman, Isa. "Coke characterization on HZSM-5, Fe/ZSM-5, Ni/ZSM-5, and Fe-Ni/ZSM-5 from Catalytic Fast Pyrolysis of Biomass." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226910.

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The combustion of fossil fuels has for a long time been a problem from an environmental and sustainability point of view, especially when it comes to the emissions of atmospheric carbon dioxide. The environmental concern has for instance shifted the attention towards finding new sustainable alternatives for producing chemicals and fuels, as a substitute to today’s dependence on fossil based crude oil. Catalytic Fast Pyrolysis of biomass is an excellent way to produce valuable chemicals and fuels using renewable resources. However, the process has some drawbacks, for example rapid deactivation
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Oliveira, Jivago Schumacher de. "AVALIAÇÃO CATALÍTICA DE ÓXIDO DE FERRO SUPORTADO EM ZEÓLITA MESOPOROSA EM SISTEMA FOTO-FENTON." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/8803.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Due to the problems presented with the use of photo-Fenton homogeneous system, for the decomposition of recalcitrant organic compounds, several studies have been conducted in order to replace it with heterogeneous processes. The heterogeneous reaction of photo-Fenton catalysts using iron oxide base (Fe2O3) is viable and reputable to overcome the problems presented by the homogeneous system. However, when used pure Fe2O3 has low efficiency due to the large size of the agglomerates formed, so deposition techniques on substrates used
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Schmidt, Rafaela de Souza. "Síntese de zeólitas ZSM-5 a partir da casca de arroz e metacaulim comercial como fontes alternativas de sílica e alumina." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/1656.

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Made available in DSpace on 2016-12-08T17:19:22Z (GMT). No. of bitstreams: 1 Rafaela de Souza Schmidt.pdf: 1614603 bytes, checksum: 4583716d044cc6f09dfcf335690ab75e (MD5) Previous issue date: 2014-01-31<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The synthesis of zeolites from alternative materials and low cost had great development in recent decades due to the fact of processes using conventional silicon and aluminum solutions are expensive .solutions of silicon and aluminum are extremely expensive. The synthesis can be carried out by any raw material containing predom
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Zheng, Quanxing. "Conversion of 2,3-butanediol over bifunctional catalysts." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/34461.

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Doctor of Philosophy<br>Department of Chemical Engineering<br>Keith L. Hohn<br>In this study, Cu/ZSM-5 catalysts were used to catalyze the hydrodeoxygenation of 2,3-butanediol to butenes in a single reactor in the presence of hydrogen. The carbon selectivity of butenes increased with increasing SiO₂/Al₂O₃ ratio (lowering acidity of zeolite) and H₂/2,3-butanediol ratio. Cu/ZSM-5 with a SiO₂/Al₂O₃ ratio of 280 showed the best activity toward the production of butenes. On zeolite ZSM-5(280), the carbon selectivity of butenes increased with increasing copper loading and 19.2wt% of CuO showed the h
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Leblanc, Pascal. "Retrovirus d'invertebres : zam un nouveau candidat chez drosophila melanogaster." Clermont-Ferrand 1, 1998. http://www.theses.fr/1998CLF1MM12.

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Banerjee, Sneharthi. "Identification of New Genes Involved in Meiosis by a Genetic Screen." Cleveland State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=csu1376395687.

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Grill, Marie. "Synthèse de catalyseurs zéolithiques supportés adaptés au craquage des carburants endothermiques en milieu supercritique." Paris 6, 2007. http://www.theses.fr/2007PA066440.

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Des catalyseurs pour le craquage d'hydrocarbures en milieu supercritique sont étudiés. L'application finale visée est la mise au point d'un système de refroidissement pour les véhicules hypersoniques. L'effet refroidissant est alors assuré par des réactions endothermiques de craquage d'un carburant dit "endothermique" à l'état supercritique. Des catalyseurs zéolithiques, de type Y et ZSM-5, déposés sur un support en acier inoxydable sont donc préparés. Deux modes opératoires sont élaborés pour la synthèse, permettant d'obtenir des dépôts d'épaisseur entre 2 et 3 µm. L'influence de l'état de su
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35

Linder, Anne. "Bücher zu Disney-Filmen - Vergleich von ausgewählten Filmen und ihrer Umsetzung in Buchform." [S.l. : s.n.], 2003. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11612102.

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Salbego, Paulo Roberto dos Santos. "Síntese e caracterização de zeólitas ZSM-5 por diferentes rotas e seu emprego na produção de olefinas leves a partir de etanol." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/7986.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>This work aims the synthesis and study of ZSM-5 catalysts for the conversion of ethanol to light olefins, especially, using an alternative and inexpensive route. The ethanol emerges as a renewable source for the production of olefins and the ZSM-5 catalyst has important characteristics for this type of reaction such as acidity, surface area and particle size. The synthesis was carried out in hydrothermal treatment at 170 °C. Were performed two conventional synthesis with templates, using n-Butylamine and tetrapropylammonium hydro
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37

Menges, Markus [Verfasser], and B. [Akademischer Betreuer] Kraushaar-Czarnetzki. "Untersuchungen zum MTO-Prozess an AlPO4-gebundenen ZSM-5-Extrudaten und Beschreibung der Reaktionskinetik / Markus Menges ; Betreuer: B. Kraushaar-Czarnetzki." Karlsruhe : KIT Scientific Publishing, 2012. http://d-nb.info/1184492263/34.

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38

Gonçalves, Marli Lansoni. "Sólidos micro-mesoestruturados tipo zeólita ZSM-5/peneira molecular MCM-41 - síntese e estudo de propriedades." Universidade Federal de São Carlos, 2006. https://repositorio.ufscar.br/handle/ufscar/3976.

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Made available in DSpace on 2016-06-02T19:56:28Z (GMT). No. of bitstreams: 1 DissMLG.pdf: 4644860 bytes, checksum: 745bf2fba935eb4bb3fc032321ab36e7 (MD5) Previous issue date: 2006-08-16<br>Universidade Federal de Sao Carlos<br>In the transformation of bulky molecules, the necessity of catalysts that allow the diffusion to and from the active sites located in the interior of the porous system has become of higher interest. The restriction for the diffusion of this type of molecule in zeolites has led the community to study routes that can make possible to obtain solids that allow the diffus
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39

Kamieniak, Jean-Pierre. "Freud, un enfant de l'humour." Paris 7, 1998. http://www.theses.fr/1998PA070060.

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On ne peut que s'etonner de la relative mesestime en laquelle freud a tenu le mot d'esprit et sa relation a l'inconscient, bien que cet ouvrage ait contribue a l'evidence aux fondements de la science nouvelle. C'est que ce dernier appartient aussi aux materiaux de l'auto-analyse et que, a travers le witz, dans cet effort pour denouer les fils de l'etoffe dont il est fait, ce conquistador s'est trouve ici directement confronte a l'enigme de son identite. Une identite inscrite dans la judeite qui, si elle renvoie bien entendu a jacob le colporteur, ouvre plus surement encore sur ce personnage fe
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40

Al-Rubaye, Rana. "Generation and characterisation of catalytic films of zeolite Y and ZSM-5 on FeCrAlloy metal." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/generation-and-characterisation-of-catalytic-films-of-zeolite-y-and-zsm5-on-fecralloy-metal(de743286-52bd-4922-8de7-9a261283b6e5).html.

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The objective of this work was the development of structured zeolite catalysts by growing of ZSM-5 and Y zeolites layers on the pre-treated FeCrAlloy wires, which could now offer technical advantage in catalytic application. The advantages of implementation of zeolitic coatings in industrial applications are that they have; lower pressure drop, high heat and mass transfer rates compared to standard pelleted or extruded catalysts. The key focus of this research was the generation of thin films of zeolite ZSM–5 and Y zeolite catalysts on the surface of a FeCrAlloy metal substrate. Using in-situ
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41

Darim, Hélio Rubens Abdo. "Propriedades ácidas e texturais de zeólitas ZSM-5 dessilicalizadas ou desaluminizadas – análise do rendimento e seletividade a olefinas leves durante a transformação de cicloexano e metilcicloexano." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/8580.

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Submitted by Alison Vanceto (alison-vanceto@hotmail.com) on 2017-02-09T10:54:21Z No. of bitstreams: 1 DissHRAD.pdf: 15161052 bytes, checksum: e10c4924acc9cc8afc5ecbec12ee85aa (MD5)<br>Approved for entry into archive by Ronildo Prado (ronisp@ufscar.br) on 2017-03-20T17:16:45Z (GMT) No. of bitstreams: 1 DissHRAD.pdf: 15161052 bytes, checksum: e10c4924acc9cc8afc5ecbec12ee85aa (MD5)<br>Approved for entry into archive by Ronildo Prado (ronisp@ufscar.br) on 2017-03-20T17:16:55Z (GMT) No. of bitstreams: 1 DissHRAD.pdf: 15161052 bytes, checksum: e10c4924acc9cc8afc5ecbec12ee85aa (MD5)<br>Made avail
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42

Silva, Edilene Deise da. "Formação de mesoporosidade em zeólitas ZSM-5: avaliação do método de preparação e do potencial como catalisador ácido através do craqueamento de cicloexano." Universidade Federal de São Carlos, 2012. https://repositorio.ufscar.br/handle/ufscar/3912.

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Made available in DSpace on 2016-06-02T19:55:32Z (GMT). No. of bitstreams: 1 4445.pdf: 6135592 bytes, checksum: 9a1ebffa2ca083786400ffa973e8b424 (MD5) Previous issue date: 2012-04-27<br>Universidade Federal de Sao Carlos<br>Due to their potential as acid catalyst and hydrothermal stability, USY, ZSM-5 and modernite zeolites are widely used in several processes of petroleum refining and petrochemical industries. With the discovery of new reserves in Brazil, the petroleum industry must adequate its technology to be able to process heavy oil fractions and satisfy the increased demand for more
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43

Hausmann, Katharina. ""Die Chance, Bürger zu werden" : deutsche Politik unter amerikanischer Besatzung ; die "Heidelberger Aktionsgruppe" ; 1946 - 47 /." Heidelberg ;Ubstadt-Weiher ;Weil am Rhein ;Basel : Verl. Regionalkultur, 2006. http://deposit.ddb.de/cgi-bin/dokserv?id=2789878&prov=M&dok_var=1&dok_ext=htm.

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44

Zaker, Azadeh. "Supercritical Water Assisted Zeolite Catalyzed Upgrading of Hydrocarbons." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-dissertations/579.

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Previous studies have successfully used near and supercritical water (SCW) for cracking and desulfurization of heavy crude oil and bio-oil, suppressing coke formation as a low-value by-product. Some of these studies benefited from using zeolite catalysts to increase the activity and selectivity toward targeted products; however, in depth studies are required to identify the role of water on zeolite catalysis under supercritical condition. Using three common zeolites, ZSM-5, HY, and β for supercritical water cracking of dodecane at 400°C, 24±2 MPa (in a 100 ml batch reactor), we showed that ZSM
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45

Pettke, Sabine. "Das Rostocker Kloster zum Heiligen Kreuz vom 16. bis zum 20. Jahrhundert : kirchen- und staatsrechtliche Auseinandersetzungen im Rahmen der mecklenburgischen Kloster- und Verfassungsfrage /." Köln : Böhlau, 1991. http://catalogue.bnf.fr/ark:/12148/cb39035569s.

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46

Sousa, Júnior Lenivaldo Valério de. "Síntese da Zeólita Zsm-22 a partir de sistema contendo sementes." Universidade Federal de Alagoas, 2015. http://www.repositorio.ufal.br/handle/riufal/1184.

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The ZSM-22 zeolite is a microporous crystalline structure which has dimensional solid belonging to the group called molecular sieves. It is common in their synthesis the use of structure direct agents (SDA's), also called direct organic only, which are costly and render the production of the material on an industrial scale. Furthermore, the crystallization times for the formation of the material are around 20 hours. In this work we propose the development of a synthesis route for the ZSM -22 more economically, from a reaction mixture free from organic director and containing seeds of crystalli
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47

Feger, Claudia. "Die dunkle Seite der Literatur." Universitätsbibliothek Chemnitz, 2005. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200501739.

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48

Dahlhaus, Jörg. "Motivierung zum Alterssport : von Metatheorien zum fundierten Praxiskonzept /." Saarbrücken : VDM, Verl. Dr. Müller, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=3013940&prov=M&dok_var=1&dok_ext=htm.

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49

Faisal, Abrar. "Zeolite adsorbents and catalysts for the recovery and production of biochemicals." Doctoral thesis, Luleå tekniska universitet, Kemiteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-60137.

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Fossil based energy resources are dominating the world’s primary energy consumption for the last century. However, with decreasing crude oil reservoirs and the role they play in global warming by emitting greenhouse gases, the focus has been turned towards improved utilization of renewable resources and the need for new, sustainable fuels and chemicals is more urgent than ever. Biomass is a carbon neutral resource that can be used to produce biofuels and other useful chemicals. One such chemical is 1-butanol (or simply butanol), which has great potential as a gasoline substitute because of its
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50

Silva, Camila Ramos da. "Formação de mesoporos na síntese de zeólitas ZSM-5 via nanomoldagem avaliação no craqueamento de n-decano." Universidade Federal de São Carlos, 2008. https://repositorio.ufscar.br/handle/ufscar/3993.

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Made available in DSpace on 2016-06-02T19:56:30Z (GMT). No. of bitstreams: 1 1801.pdf: 7196962 bytes, checksum: d8036f105e4f745f6d5cca6487bfd320 (MD5) Previous issue date: 2008-04-04<br>Universidade Federal de Minas Gerais<br>The use of zeolites in the cracking of hydrocarbons is limited because the molecules higher than 0.74 nm do not diffuse in their micropores. In the other hand, molecular sieves as MCM-41, MCM-48 ou SBA-15, whose diameters are up 10 nm for the two formers and up to 30 nm for the last, have low hydrothermal stability and catalytic activity. To overcome those limitations
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