Carbon monoxide, dinitrogen and carbon dioxide adsorption on zeolite H-Beta: IR spectroscopic and thermodynamic studies

Montserrat Rodriguez Delgado and Carlos Otero Arean

Energy, 2011, vol. 36, issue 8, 5286-5291

Abstract: Variable temperature IR spectroscopy (VTIR) was used to investigate the adsorption thermodynamics of carbon monoxide, dinitrogen and carbon dioxide on the protonic zeolite H-Beta. Interaction of the adsorbed gases with the zeolite Brønsted acid sites was found to involve an enthalpy change of −27, −19 and −33 kJ mol−1 for CO, N2 and CO2, respectively; the corresponding entropy change was −150, −140 and −146 J mol−1 K−1. The adsorbed gases showed also a weak interaction with silanols, which involves a ΔH0 value in the approximate range of −7 to −10 kJ mol−1. These results were discussed in the context of gas separation and carbon capture and sequestration (CCS) using zeolites.

Keywords: Adsorption thermodynamics; CCS; Gas separation; IR spectroscopy; Zeolites (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:36:y:2011:i:8:p:5286-5291

DOI: 10.1016/j.energy.2011.06.033

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