Academic literature on the topic 'ZWM'

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Dissertations / Theses on the topic "ZWM"

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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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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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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