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Síntese e caracterização de membranas zeolíticas tipo mfi e aplicação em separação de aromáticos
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em QuímicaFísico-Química; Química, 2013-07-22)
The synthesis of MFI-type zeolite membranes was carried by the process in situ or
hydrothermal crystallization. We studied the homogenization time of the room
temperature and gel filtration just before the crystallization ...
Síntese e caracterização de materiais nanoporosos para pirólise catalítica de óleos pesados
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em QuímicaFísico-Química; Química, 2008-12-22)
The present work reports the study of nanoporous structures, aiming at their use in research directed to the current demand of the petroleum industry to value heavy oil. Initially,
two ways were chosen for the synthesis ...
Synthesis and characterization of Al-TON zeolite using a Dialkylimizadolium as structure-directing agent
(Universidade Federal de São Carlos, 2016-11)
In this work, the synthesis of zeolites using 1-butyl-3-methylimidazolium chloride [C4MI]Cl as a structure-directing agent was investigated. The organic cation shows effectiveness and selectivity for the syntheses of TON ...
Híbridos ureasil-poliéter conjugados com zeólitas MFI para acetilação do glicerol
(Universidade Estadual Paulista (Unesp), 2019-07-04)
Neste trabalho a metodologia sol-gel foi utilizada para a preparação de materiais híbridos orgânico-inorgânicos (HOI) à base de óxido de poli-etileno (PEO), ligado de forma covalente com o agente acoplador 3(isocianatopropil) ...
Electrodes Based on Zeolites Modified with Cobalt and/or Molybdenum for Pesticide Degradation. Part I: Physicochemical Characterization and Efficiency of the Electrodes for O2 Reduction and H2O2 Production
(Springer New York LLC, 2019)
© 2018, Springer Science+Business Media, LLC, part of Springer Nature.With the purpose of obtaining inexpensive electrodes for the degradation of organic pesticides by the electro-Fenton reaction, the required H2O2 being ...
Isomerización de xilenos en reactores de membrana: síntesis y evaluación de membranas compuestas tipo MFI
(2007-03-23)
Zeolite membranes are very well positioned for use in industrial membrane reactors due to their thermal and chemical stability. They are particularly useful to improve conversion, selectivity and yield in equilibrium-limited ...
One-step glycerol oxidehydration to acrylic acid on multifunctional zeolite catalysts
(Elsevier B.V., 2015-02-25)
The catalytic behavior of bifunctional V2O5/MFI catalysts with acid and oxidizing properties was investigated for the gas-phase oxidehydration of glycerol. One of the main reaction products was acrylic acid, produced by ...