Highly selective uptake of carbon dioxide on the zeolite |Na10.2KCs0.8|-LTA – a possible sorbent for biogas upgrading†
Abstract
The|Na10.2KCs0.8|8[Al12Si12O48]8(Fmc)-LTA zeolite adsorbs CO2-over-CH4 with a high selectivity (over 1500). The uptake of carbon dioxide is also high (3.31 mmol g−1, 293 K, 101 kPa). This form of zeolite A is a very promising adsorbent for applications such as biogas upgrading, where keeping the adsorption of methane to a minimum is crucial.