Rapid Cycling Thermal Swing Adsorption Apparatus: Commissioning and Data Analyses for Water Adsorption of Zeolites 4A and 13X Over 2000 Cycles

Nitrogen Gas Adsorption in Zeolites 13X and 5A

Since the discovery of zeolites there has been a consistent interest in the potential applications of these microporous structures. Of current particular interest is the possible use of zeolites as storage devices for fuel cells in the hydrogen economy. The adsorption kinetics of zeolites are not fully understood, and therefore the potential of such materials has not been optimized. In this stu...

Adsorption Humidity Effects, Microparticle Rate Behavior and Thermal Swing Adsorption

Title of Dissertation: ADSORPTION HUMIDITY EFFECTS, MICROPARTICLE RATE BEHAVIOR AND THERMAL SWING ADSORPTION John J. Mahle, Doctor of Philosophy, 2005 Dissertation Directed by: Professor Michael Harris Department of Chemical Engineering Purdue University Application of adsorption processes for air purification requires an approach, which accounts for the presence of humidity. Four separate but ...

Water adsorption in hydrophilic zeolites: experiment and simulation.

We have measured experimental adsorption isotherms of water in zeolite LTA4A, and studied the regeneration process by performing subsequent adsorption cycles after degassing at different temperatures. We observed incomplete desorption at low temperatures, and cation rearrangement at successive adsorption cycles. We also developed a new molecular simulation force field able to reproduce experime...

Enantioselective adsorption in achiral zeolites.

Effects of Water Content on SO2/N2 Binary Adsorption Capacities of 13X and 5A Molecular Sieve, Experiment, Simulation, and Modeling

In this work, SO2 adsorption on 13X and 5A was explored at different concentrations, and the results were compared to molecular simulation and models. The adsorbent saturation tests were performed at four different concentrations of 250, 500, 750, and 1000 ppm, and it was observed that saturation would take more time for higher SO2 concentrations. Grand Canonical Monte Carlo method was used for...