D2/H2 adsorption selectivity on FAU zeolites at 77.4 K: Influence of Si/Al ratio and cationic composition

New force field for GCMC simulations of D2/H2 quantum sieving in pure silica zeolites

“…These properties are strongly dependent on the pore structure and nature of compensation cations [13][14][15][16][17] . For cationic FAU zeolites, D2/H2 selectivity can vary from 3 to 6 according to the compensation cation at 77 K and low pressure (a few hPa) corresponding to low loading 18 . However, under 10 5 Pa, which is close to the operating pressure of an adsorption process, the selectivity value is rather low, it does not exceed 2 whatever may be the chemical composition.…”

“…Although it could seem insufficient in comparison with other materials (MOF, carbon). This is compensated by large adsorption capacities (up to 0.009 mol.g -1 at 77 K under 10 5 Pa with NaX 18 ), such that this material is a good candidate for separation processes. Recent Monte-Carlo simulations have shown that non-cationic zeolites could present very high adsorption selectivity 19 .…”

Barely porous organic cages for hydrogen isotope separation

“…Various porous materials have been studied for hydrogen isotope separation, including carbons (13,14), carbon nanotubes (15), zeolites (16,17), metal-organic frameworks (MOFs) (6,18,19), covalent organic frameworks (COFs) (20), and 2D crystals (21). MOFs and COFs have received much attention because of their crystalline nature and synthetically tunable pore size and functionality (22).…”

Efficient Removal of Volatile Organic Compounds by FAU-Type Zeolite Coatings

“…The structure is composed of supercages interconnected through a circular 12-member-ring (MR) with a pore opening of 7.4 Å. The FAU-type structure is used for several applications such as the separation of hydrocarbon and gas mixtures [ 17 , 18 ], catalysis [ 19 , 20 ] and D 2 /H 2 adsorption selectivity [ 21 ]. FAU-type structure was used in this work mainly due to the large pore opening and also because of its high adsorption capacities of Volatile Organic Compounds (VOCs) [ 15 , 22 , 23 ].…”