02284nas a2200229   4500008004100000022001400041245013800055210006900193260000800262300001200270490000800282520147000290653001401760653002201774653002301796653002201819653002201841653001601863100002401879700002601903856012501929       2025                        eng d  a0360-319900aOptimizing H2/CO2 binary gas mixture separation using Li-K-ETS-10 zeolite: Breakthrough analysis and impact of operational conditions0 aOptimizing H2CO2 binary gas mixture separation using LiKETS10 ze  cMAR  a673-6830 v1053 a<p>
	The polycation-exchanged ETS-10 (Li-K-ETS-10) zeolite was employed as a sorbent in breakthrough experiments using a binary H2/CO2 (75/25%) gas mixture. The data compared with parent adsorbent (NaK)-ETS-10, and mono cation exchange of ETS-10 (K-ETS-10 and Li-ETS-10). Adsorbents underwent for various characterization including XRD, Raman, FTIR, EDS, CO2-TPD, BET surface area, and pore diameter of samples to understand the physicochemical properties. CO2-TPD shows that Li-K-ETS-10 has higher basicity than parent (NaK)-ETS-10. The process parameters were optimized to ensure a higher CO2 sorption capacity and better H2 purity including effects of flow rate, pressure, temperature, feed concentration, bed height, and recyclability. The adsorption capacities of CO2 and H2 were found to be 1.57 mmol g- 1 and 0.24 mmol g-1, respectively, at 1 bar and a flow rate of 200 mL min- 1. These values represent a 40% improvement over (NaK)-ETS-10 and a-10.4% improvement over Li-ETS-10. At 6 bar, the CO2 and H2 adsorption capacities reached 2.79 mmol g- 1 and 0.22 mmol g-1, respectively. The higher CO2 sorption over Li-K-ETS-10 leads due to improve in basic sites and physical properties of sample compare to studied adsorbent. The experimental data of binary gas mixture was used to evaluate the kinetic models including Thomas, and Yoon-Nelson. This results implies that Li-K-ETS-10 is the promising candidates for H2 separation from binary gas mixture.</p>
10aadsorbent10aBinary gas stream10aBreakthrough study10aH2/CO2 separation10aKinetic modelling10aLi-K-ETS-101 aShrotri, Aadesh, R.1 aNandanwar, Sachin, U.  uhttps://library.ncl.res.in/content/optimizing-h2co2-binary-gas-mixture-separation-using-li-k-ets-10-zeolite-breakthrough