Measurement of competitive CO2 and N2 adsorption on Zeolite 13X for post-combustion CO2 capture

Screening Supported Amine Sorbents in the Context of Post‐combustion Carbon Capture by Vacuum Swing Adsorption

“…Recovery ¼ moles CO 2 ;cnÀevac moles CO 2 ;fed (11) Recovery determines the rate of CO 2 capture and is the ratio of the amount of CO 2 captured to the amount of CO 2 in the feed.…”

“…Therefore, this requires an adsorbent with a high CO 2 selectivity and capacity. Several adsorbents such as zeolites 10–12, activated carbons 13, 14, metal‐organic frameworks (MOFs) 15, 16 and zeolitic imidazolate frameworks (ZIFs) 17, 18 are currently being explored for post‐combustion CO 2 capture. Amongst these adsorbents, Zeolite 13X is the most widely studied adsorbent due to its commercial availability, low cost and high CO 2 capacity 11, 12.…”

“…Several adsorbents such as zeolites 10–12, activated carbons 13, 14, metal‐organic frameworks (MOFs) 15, 16 and zeolitic imidazolate frameworks (ZIFs) 17, 18 are currently being explored for post‐combustion CO 2 capture. Amongst these adsorbents, Zeolite 13X is the most widely studied adsorbent due to its commercial availability, low cost and high CO 2 capacity 11, 12. A major drawback of this adsorbent is its hydrophilicity and that the strong adsorption of water affects the adsorption of CO 2 19, 20.…”

Interlayer Cation-Controlled Adsorption of Carbon Dioxide in Anhydrous Montmorillonite Clay

“…Finally, to assess whether Cs-or TMA-MMT could be used in, for example, cyclic gas separation processes, we compare their Langmuir equation parameters with a benchmark "designer" physical CO 2 sorbent, Zeolite 13X (Table S2). While the sorption capacity per unit mass on our MMTs (up to 1.7 mmol g −1 ) is smaller than on Zeolite 13X (5.0−7.3 mmol g −1 ), 51−56 differences in adsorption capacity per unit volume are smaller (q s ≈ 5.0−7.3 mmol cm −3 for Zeolite 13X, and q s ≈ 3.5 mmol cm −3 for (Cs-)MMT, considering particle densities of ∼1.0 g cm −3 for Zeolite 13X 53,55 and ∼2.5 g cm −3 for (Cs-)MMT 23,57 ). Zeolite 13× is believed to sorb CO 2 on two different sites 58 that both contribute to approximately half of the sorption capacity (Table S2).…”

Production of negative-emission biomethane by twin double-bed pressure swing adsorption with tail gas sequestration

“…The temperature profiles of the model and experiment for both 0 ºC and 25 ºC show similar trends, reaching the peak values at almost the same time. However, the discrepancy between the simulated and experimental profiles may be due to the slight difference in the breakthrough times 46 . The dynamic adsorption capacity, CO 2 /CH 4 static selectivity and dynamic selectivity based on breakthrough curves have been presented in Figure 10.…”