In the present study, different zeolite-based adsorbents are subjected to stress experiments simulating application conditions. In mobile systems, mechanical stress due to shocks and vibrations may occur. These effects are quantified by means of abrasion and riddle screen tests. Hydrothermal aging of the adsorbents is studied for a lifetime of up to 3500 adsorption-desorption-cycles. Therefore, the effects of hydrothermal treatment on adsorption equilibria and energy storage density are quantified. A mathematical model is proposed to take take these effects into account for application planning. Aged samples as well as the as-new materials are characterized by various techniques. Results indicate an important influence of meso- and macropores on hydrothermal stability. Numerical simulations of transfer processes inside a single pellet confirm this finding.
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In the present study, different zeolite-based adsorbents are subjected to stress experiments simulating application conditions. In mobile systems, mechanical stress due to shocks and vibrations may occur. These effects are quantified by means of abrasion and riddle screen tests. Hydrothermal aging of the adsorbents is studied for a lifetime of up to 3500 adsorption-desorption-cycles. Therefore, the effects of hydrothermal treatment on adsorption equilibria and energy storage density are quantifi...
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