Adsorption Behavior of Halogenated Anesthetic and Water Vapor on Cr-Based MOF (MIL-101) Adsorbent Part I. Equilibrium and Breakthrough Characterizations

A synthesized chromium-based metal organic framework (Cr-MOF) was used for the adsorption of halogenated anesthetics, i.e., sevoflurane (SF). Adsorption isotherm and breakthrough experiments involving SF (reference sorbate) and water vapor were measured at 298 K and atmospheric pressure on both Cr-MOF and a commercially used reference adsorbent. The Cr-MOF MIL-101 showed a significantly higher SF adsorption capacity and much higher selectivity relative to water vapor compared to the reference adsorbent. Binary-mixture breakthrough tests demonstrated a roll-up effect for SF on the reference adsorbent while no such effect was observed on MIL-101.