Catalyst Al Mcm 41 Mesoporous Molecular Sieves
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Synthesis, characterization and catalytic activity of mesoporous materials Al-MCM-41 in transesterification reaction of cottonseed oil / Síntese, caracterização e avaliação catalítica do aluminossilicato mesoestruturado AI-MCM-41 na transesterificação de óleos vegetais
Molecular sieves have been applied to the processing of triacylglycerols, to produce biofuels. In this context, the mesoporous catalyst Al-MCM-41 was proposed in this work as an alternative to acid heterogeneous transesterification of cottonseed oil with ethanol. This material was prepared using various Si/Al molar ratios (25, 50, 75 and 100) with reaction t
Publicado em: 2010
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2. Síntese e caracterização de materiais nanoporosos para pirólise catalítica de óleos pesados
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 of porous structures from the molecular sieves of type Si-MCM-41. In the first way, the structure MCM-41 is precursory for heteroatom substi
Publicado em: 2008
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3. CATALYSTS SUPPORTED IN MICRO AND MESOPOROUS MOLECULAR SIEVES FOR THE FISCHER- TROPSCH SYNTHESIS / CATALISADORES SUPORTADOS EM PENEIRAS MOLECULARES MICRO E MESOPOROSAS PARA A SÍNTESE DE FISCHER-TROPSCH
The Fischer- Tropsch synthesis converts the synthesis gas (H2 + CO), in a complex variety of hydrocarbons, using a catalyst (Co/Al2O3 normally) were introduced to the used supports by the wetness incipient impregnation. The samples were analyzed by several techniques such as: plasma- emission spectrometry (ICP- EAS), N2 physical adsorption by BET method, X-r
Publicado em: 2004