Thermodynamic analysis of molecular simulations of N2 and O2 adsorption on zeolites under plateau special conditions

A‐ and B‐site Codoped SrFeO3 Oxygen Sorbents for Enhanced Chemical Looping Air Separation

“…PSA operates based on selective adsorption of nitrogen on a sorbent, with oxygen preferentially permeating through to produce concentrated oxygen under periodic purging and sorbent regeneration steps. The common sorbents for PSA are zeolites (e.g., LiX), which preferentially binds N 2 over O 2 , owing to the charged surface of the zeolite structure and higher polarizability of nitrogen compared to oxygen . Owing to its simplified operation and fast cycle time, PSA has been increasingly used for small‐scale air separation.…”

Oxygen separation from air by the combined temperature swing and pressure swing processes using oxygen storage materials Y1−x(Tb/Ce)xMnO3+δ

“…Typically, the driving force for the oxygen incorporation/release requires changes in the oxygen partial pressure of several orders of magnitude [8]. Importantly, this process is different from the surface-related pressure swing absorption, which is commercially used in systems that operate with the active material utilizing its surface selectivity for air constituents [9][10][11]. The OSMs of PSA type have been widely known since the early 1980s when the CeO 2based materials were firstly implemented in the three-way catalytic converters used in the exhaust system of gasoline-fueled vehicles [12,13].…”

Biomass derived hierarchical porous carbon for high-performance O2/N2 adsorption; a new green self-activation approach

“…In the mentioned equations, R is gas constant (8.314 (J mol À1 K À1 )). 14 As can be seen in 4. The value of DH 0 < 20 (kJ mol À1 ) represented the physisorption process and if the value of DH 0 > 40 (kJ mol À1 ), represents the chemisorption.…”