INFLUENCE OF LITHIUM ION MODIFICATION OF ZEOLITE 13X ON CO2 ADSORPTION

4th International Symposium On Biotechnology (2026),  [pp. 849-856]
 
AUTHOR(S) / АУТОР(И): Stefan Tomić , Zoran Obrenović , Radislav Filipović , Sava Matić , Duško Kostić
 
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DOI: https://doi.org/10.46793/SBT26.849T

ABSTRACT / САЖЕТАК:

The influence of lithium-ion exchange on the CO₂ adsorption capacity of zeolite 13X was investigated in order to improve its performance in carbon capture applications. Ion exchange was carried out using an 8.3 mol L-1 LiCl solution under controlled conditions (45 and 55 °C, single- and two-step procedures). The modified samples were characterized to determine the exchange degree and structural stability, followed by CO₂ adsorption measurements. Partial substitution of Na⁺ with Li⁺ caused slight lattice contraction without framework degradation and significantly enhanced adsorption capacity. The highest value (5.71 mmol g-1) was obtained for the two-step treatment at 55 °C. The results indicate that the degree of ion exchange strongly influences adsorption performance and confirm the potential of Li-modified 13X for CO₂ capture.

KEYWORDS / КЉУЧНЕ РЕЧИ:

13X, ion exchange, Li-X, adsorption, CO2

ACKNOWLEDGEMENT / ПРОЈЕКАТ:

REFERENCES / ЛИТЕРАТУРA:

  • Zubair M., Chen S., Ma Y., Hu X. (2023). A Systematic Review on Carbon Dioxide (CO₂) Emission Measurement Methods under PRISMA Guidelines: Transportation Sustainability and Development Programs. Sustainability (MDPI), 15, 1-19.
  • Chen S. J., Zhu M., Fu Y., Huang Y. X., Tao Z. C., Li W. L. (2017). Using 13X, LiX, and LiPdAgX zeolites for CO2 capture from post-combustion flue gas. Acta Applied Energy, 191, 87-98.
  • Pérez-Botella E., Valencia S., Rey F. (2022). Zeolites in Adsorption Processes: State of the Art and Future Prospects. Chemical Reviews, 122, 17647-17695.
  • Wang L., Liu J., Lin C., Shang H., Yang J., Li L., Li J. (2022). Effects of different alkali metal cations in FAU zeolites on the separation performance of CO2/N2O. Chemical Engineering Journal, 431, 134257.
  • Gęsikiewicz-Puchalska  A., Zgrzebnicki M., Michalkiewicz B., Kalamaga A., Narkiewicz U., Morawski A. W.,  Wrobel R. (2021). Changes in Porous Parameters of the Ion Exchanged X Zeolites and Their CO₂ Adsorption Capacities. Molecules, 26, 7520.
  • Sun Y., Li H., Lai H., Yu Y., Hou M., Fu C., Zhang C. (2025). CO2 selective adsorption from CO2/CH4 mixtures and regeneration of X zeolites by Li and K modification using various regeneration strategies. Chemical Engineering Journal , 515, 163682.
  • Shrotri A. R., Birje A. R., Niphadkar P. S., Bokade V. V., Mali N. A.,  Nandanvar S. U. (2024). Performance of Li exchange hierarchical X zeolite for CO2 adsorption and H2 separation. Journal of Industrial and Engineering Chemistry, 133, 505-514.