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Estudos sobre a acessibilidade aos sítios de zeólitas para aplicação em catálise básica
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2022-03-28)
The application of zeolites in catalysis is restricted when bulkier molecules are involved, for example, in the manufacture of fine chemicals, where the reactant molecules are unable to access their micropores. A solution ...
Catalytic improvement of biomass conversion: Effect of adding mesoporosity on MOR zeolite for esterification with oleic acid
(Pergamon-Elsevier Science Ltd, 2021-11)
Catalytic processes play an important role in the valorization of biomass for the production of biofuels. In this context, the effect of desilication of MOR zeolite (H-MOR-D) on the esterification of oleic acid as a model ...
Kaolin-based Magnetic Zeolites A And P As Water Softeners
(Elsevier B.V., 2017)
Preparation of hydrophobic MFI zeolites containing hierarchical micro-mesopores using seeds functionalized with octyltriethoxysilane
(2020-01-20)
In this work, we report the synthesis of hydrophobic MFI zeolites presenting a mesopore size distribution and high specific external area (∼288 m2 g−1), employing surface functionalization with octyltriethoxysilane (OTEOS). ...
Effect of doping natural zeolite with copper and zinc cations on ethylene removal and postharvest tomato fruit quality
(Chemical Engineering Transactions, 2020)
Effect of doping natural zeolite with copper and zinc cations on ethylene removal and postharvest tomato fruit quality
(Chemical Engineering Transactions, 2020)
Characterization of natural zeolite membranes for H2/CO2 separations by single gas permeation
(American Chemical Society, 2011-11)
Natural zeolite membranes can be used as a model for the development of robust molecular sieve membranes with superior separation characteristics. We describe the characterization of natural clinoptilolite membranes made ...
Confinement Effects in Protonation Reactions Catalyzed by Zeolites with Large Void Structures
(American Chemical Society, 2018-12)
In the present work, we studied the protonation reaction of styrene inside the cavity of acidic H-Y zeolite. Density functional theory calculation using M06-2X functional and analysis of quantum theory of atoms in molecules ...
Hierarchical H-ZSM-5 zeolite and sulfonic SBA-15: The properties of acidic H and behavior in acetylation and alkylation reactions
(Elsevier Science, 2020-10)
A commercial H-ZSM-5 zeolite was modified by alkaline treatment using NaOH solutions in different concentrations, followed by consecutive ion exchanges with NH4NO3 solution in order to recover the acidic form of the material. ...
SYNTHESIS AND DETERMINATION OF THE PROPERTIES OF THE BIFUNCTIONAL BETA ZEOLITE CATALYSTS FOR N-HEPTANE HYDROISOMERIZATION
(Sociedad Chilena de Química, 2008)