New Insights on CO2−Methane Separation Using LTA Zeolites with Different Si/Al Ratios and a First Comparison with MOFs
Abstract
LTA zeolites can be synthesized with tailored adsorption properties by controlling the Al content in the framework. In this work, we have demonstrated that it is possible to adjust the polarity of the zeolitic adsorbent to optimize its thermodynamic adsorption properties for the energetically relevant CO(2)/CH(4) separation process. The thermodynamic study has been made from the corresponding adsorption isotherms of the pure gases carried out at different pressures and temperatures, as well as breakthrough separation experiments of CO(2)/CH(4) mixtures and the results were compared to those reported on MOFs. The separation values obtained allow us to conclude that LTA zeolites offer unique possibilities for CH(4) upgrading from natural gas.
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Promising values of CO2/CH4 selectivity and heat of adsorption of CO2 have been obtained using medium-, high-, and pure-silica LTA, RHO, MWF, PWN, FAU, CHA, AEI, STT, and RRO zeolites and AlPOs/SAPOs with CHA, RHO, AFX, AFN, and AEI structures.
“Promising values of CO2/CH4 selectivity and heat of adsorption of CO2 have been obtained using medium-, high-, and pure-silica LTA,501 RHO,273 MWF, PWN275,502 (and other RHO-related structures), FAU,483 CHA,503 AEI, STT, and RRO504 zeolites and aluminophosphates (AlPOs) and silicoaluminophosphates (SAPOs) with CHA, RHO, AFX, AFN, and AEI structures.152,505−508”
From Zeolites in Adsorption Processes: State of the Art and Future Prospects (2022) · cites this paper as [501]
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Zeolites in Adsorption Processes: State of the Art and Future Prospects
Pérez-Botella, E., Valencia, S., & Rey, F. (2022) · Chemical Reviews · doi:10.1021/acs.chemrev.2c00140 · Cited by 1,126 · see citing works
Self-citationGeorgieva, V. M., Bruce, E. L., Verbraeken, M. C., Scott, A. R., Casteel, W. J., Brandani, S., & Wright, P. A. (2019) · Journal of the American Chemical Society · doi:10.1021/jacs.9b05539 · Cited by 147 · see citing works
Lozinska, M. M., Mowat, J. P. S., Wright, P. A., Thompson, S. P., Jorda, J. L., Palomino, M., Valencia, S., & Rey, F. (2014) · Chemistry of Materials · doi:10.1021/cm404028f · Cited by 135 · see citing works
Self-citationGarcía, E. J., Pérez-Pellitero, J., Pirngruber, G. D., Jallut, C., Palomino, M., Rey, F., & Valencia, S. (2014) · Industrial & Engineering Chemistry Research · doi:10.1021/ie500207s · Cited by 63 · see citing works
Self-citationBahamon, D., Ogungbenro, A. E., Khaleel, M., Abu-Zahra, M. R. M., & Vega, L. F. (2020) · Industrial & Engineering Chemistry Research · doi:10.1021/acs.iecr.9b05542 · Cited by 31 · see citing works
Pérez-Botella, E., Palomino, M., Valencia, S., & Rey, F. (2019) · Green Energy and Technology · doi:10.1007/978-981-13-3504-4_7 · Cited by 29 · see citing works
Self-citation
- Authors
- Palomino, M., Corma, A., Rey, F., & Valencia, S.
- Affiliations
- Instituto de Tecnología Química (ES)
- Corresponding author
- Corma, Avelino
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-09-16
- Volume
- 26
- Issue
- 3
- Pages
- 1910-1917
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2024016382
- Cited by
- 289
- References
- 4
- Citations by year
- 2026: 14 · 2025: 17 · 2024: 21 · 2023: 18 · 2022: 19 · 2021: 14 · 2020: 19 · 2019: 10 · 2018: 33 · 2017: 21 · 2016: 11 · 2015: 20 · 2014: 19 · 2013: 20 · 2012: 14
- FWCI
- 6.62
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Langmuir (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
- Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
- Physical Sciences › Chemistry › Inorganic Chemistry › Metal-Organic Frameworks: Synthesis and Applications
- Keywords
- CO2/CH4 separation, zeolite A, Si/Al ratio, adsorption isotherms, natural gas upgrading, metal-organic frameworks
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