Zeolites and related sorbents with narrow pores for CO₂ separation from flue gas

Abstract

Review: 117 refs.

Deblocking effect of carbonates and hydrogen carbonates in the alkali form zeolites with narrow pores

“…Growing interest to the alkali exchanged form zeolites with narrow pores and 8R windows, which control molecular passing, can be explained by a possibility to develop a superior adsorbent for gas mixture separation [1][2][3][4][5][6][7][8][9][10][11]. For example, high CO 2 /N 2 separation coefficients have been predicted in KCHA [1] and have been evaluated from individual isotherms of CO 2 and N 2 in NaKA [2].…”

Transferable force-field for modelling of CO2, N2, O2and Ar in all silica and Na+exchanged zeolites

“…However, in comparison to available experimental data for adsorption of carbon dioxide, there is less data for adsorption of other gases at room temperatures, where the major part contributes from nitrogen. Considering separation of gases using zeolites as adsorbents [1,3,[77][78][79] or membrane based separation [80,81] one can state that knowledge of …”

Cation Control of Molecular Sieving by Flexible Li-Containing Zeolite Rho

“…6 Small pore zeolites are promising sorbents for this purpose, 7,8 because their performance can be adjusted through control of their polarity, cage and window size, pore capacity and extra-framework cation content. [9][10][11][12] Commonly, the aluminosilicate framework of a zeolite is considered rigid, with a pore size derived from crystallographic measurements -values for which can be found in the 'Atlas of Zeolite Framework Types' 13 -so that its molecular sieving performance is determined by the location of charge-balancing cations.…”