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Adsorption of H2, CO2, CH4, CO, N2 and H2O in Activated Carbon and Zeolite for Hydrogen Production

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The design of a layered pressure swing adsorption unit to treat a specified off-gas stream is based on the properties of the adsorbent materials. In this work we provide adsorption equilibrium and kinetics of the pure gases in a SMR off-gas: H2O, CO2, CH4, CO, N2, and H2 on two different adsorbents: activated carbon and zeolite. Data were measured gravimetrically at 303-343 K and 0-7 bar. Water adsorption was only measured in the activated carbon at 303 K and kinetics was evaluated by measuring a breakthrough curve with high relative humidity.
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Keywords: Adsorption kinetic; adsorption equilibrium; carbon dioxide; hydrogen; pressure swing adsorption

Document Type: Research Article

Affiliations: 1: Laboratory of Separation and Reaction Engineering (LSRE) Associate Laboratory LSRE-LCM, Department of Chemical Engineering, Faculty of Engineering, University of Porto (FEUP), Porto, Portugal 2: Foundation for Research and Technology, Hellas (FORTH), Institute of Chemical Engineering and High Temperature Chemical Processes (ICE-HT), Patras, Hellas

Publication date: 2009-01-01

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