Adsorption Behavior of Halogenated Anesthetic and Water Vapor on Cr-Based MOF (MIL-101) Adsorbent. Part II. Multiple-Cycle Breakthrough Tests

Multiple-cycle breakthrough tests of a binary gas mixture of the halogenated anesthetic sevoflurane (SF) and water vapor were performed on both the synthesized chromium-based metal organic framework (Cr-MOF) and a conventionally used reference adsorbent. At 1 vol % SF and 50 % relative humidity mixture composition, the Cr-MOF (MIL-101) showed a significantly higher SF adsorption capacity, lower water vapor adsorption capacity, and no roll-up effect compared to the reference sample. After each adsorption measurement, the saturated column was regenerated. MIL-101 showed higher stability with minor SF capacity loss after 14 cycles, while the reference sample lost about a half of the SF capacity after 17 cycles.