Separation of CO2 from Light Gas Mixtures using Ion-Exchanged

Jul 2, 2008 - Department of Chemical Engineering, UniVersity of Puerto Rico, Mayagüez Campus,. Mayagüez, Puerto Rico 00681-9046. Na. +. -SAPO-34 ...
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5602

Ind. Eng. Chem. Res. 2008, 47, 5602–5610

Separation of CO2 from Light Gas Mixtures using Ion-Exchanged Silicoaluminophosphate Nanoporous Sorbents Milton E. Rivera-Ramos, Gerardo J. Ruiz-Mercado, and Arturo J. Herna´ndez-Maldonado* Department of Chemical Engineering, UniVersity of Puerto Rico, Mayagu¨ez Campus, Mayagu¨ez, Puerto Rico 00681-9046

Na+-SAPO-34 sorbents were ion-exchanged with several individual metal cations to study their effect on the adsorption of similar size light gases. Measurements of pure component adsorption equilibria, with emphasis on CO2, were performed at different temperatures (273-348 K) and pressures (