• Acetalization of glycerol with cinnamaldehyde was performed using PW immobilized on NaY. The material NaY-PW4 showed high activity. Good selectivity to (2-(2-phenyl-1-ethenyl)-1,3-dioxolan-4-yl)methanol product. After fifth utilizations, the good Glycerol reacted over phosphotungstic acid (PW) encapsulated NaY at 100°C. Catalysts containing different contents were prepared. activity increased...

Zeolites can be used to store thermal energy, but they may age and lose a fraction of their storage capacity during prolonged use. The purpose this study is determine which parameters are responsible for the aging zeolite NaY by exposing it extreme hydrothermal conditions. In laboratory unit, fixed bed binder-free beads was treated hydrothermally, were analyzed signs aging. Also, 13X tested com...

The present work reports the impregnation of palladium (Pd) or platinum (Pt) on hierarchical porous zeolite catalysts for Volatile Organic Compounds (VOCs) oxidation. (NaYmod) was synthesized via a top-down approach to incorporate mesoporosity into microporous NaY. This process achieved through three steps synthesis: dealumination, desilication and alkaline treatment. 0.5 wt% Pd Pt precursors w...

Polyethersulfone-sulfonated polyethersulfone (PES-SPES)/NaY zeolite/nylon sandwich structure membranes were prepared and used to adsorb Cu2+ from water. The adsorption kinetics, isotherm, dynamic experiment, reusability discussed. experimental data showed that the Langmuir isotherm model, Dubinin–Radushkevich (D-R) pseudo-first-order kinetic model can well represent of on membrane, indicating a...

In adsorption heat pumps, the adsorbent is typically combined with conducting structures in order to ensure high power output. A new approach for direct integration of zeolite granules into a copper structure made short fibers presented here. Zeolite NaY two different grain sizes are coated and powder sintered larger structures. The sorption dynamics these were measured evaluated terms mass tra...