Dynamic adsorption properties of activated carbon for radioactive noble gas treatment in offshore floating nuclear power plant

Comparison of Adsorption Coefficients of Argon, Krypton, and Xenon on Various Activated Charcoal Grades in Static Conditions

“…The water vapor presence in the air can significantly reduce the activated carbon sorption capacity to noble gases. This becomes especially noticeable at a relative humidity of more than 20% . It was shown in ref that the xenon adsorption coefficients from air and helium on different grades of activated carbon differ, and the difference increases with a decrease in temperature.…”

“…This becomes especially noticeable at a relative humidity of more than 20%. 28 It was shown in ref 8 that the xenon adsorption coefficients from air and helium on different grades of activated carbon differ, and the difference increases with a decrease in temperature. This is explained by the fact that with a decrease in temperature, the air components' adsorption on activated carbon increases, which leads to a decrease in sorption capacity to noble gases.…”

Abnormal structural transformation of tetra-n-butyl ammonium chloride + Xe clathrates and its significance for clathrate-based Xe capture and storage

“…12 Radioactive 127 Xe, with a relatively long half-life, is separated by cryogenic distillation, whereas 133 Xe and 135 Xe, with relatively short halflives, are treated by absorption. [13][14][15] Xe is also known to be a structure I (sI) hydrate former, so researchers have also suggested clathrate-based Xe capture and storage. 16,17 The formation of Xe hydrate, however, requires high pressures and low temperatures, which is a major hurdle for a competitive and effective gas separation and storage process.…”

“…12 Radioactive 127 Xe, with a relatively long half-life, is separated by cryogenic distillation, whereas 133 Xe and 135 Xe, with relatively short half-lives, are treated by absorption. 13–15 Xe is also known to be a structure I (sI) hydrate former, so researchers have also suggested clathrate-based Xe capture and storage. 16,17…”