Recovery of Sevoflurane Anesthetic Gas Using an Organosilica Membrane in Conjunction with a Scavenging System

Approximately 95% of the anesthetic gas administered to a patient is exhaled and ultimately released into atmosphere. Most gases have high global warming potential so this approach adds significantly greenhouse footprint. In work, we develop feasible means capture such an (sevoflurane) before it hospital scavenging system that retained within circuit. Sevoflurane using microporous 1,2-bis(triethoxysilyl)ethane (BTESE) membrane prepared by sol–gel method. The use ceramic facilitates sanitization at temperatures. A rapid thermal processing (RTP) technique employed reduce production time create looser organosilica network, resulting in higher permeances, compared with synthesized from conventional processing. RTP shows slight decline permeance when used dry mixture CO2/N2/sevoflurane. This falls again under 20% relative humidity feed conditions but CO2/sevoflurane selectivity increases. performance little variation further increased. These promising results demonstrate BTESE has great for recovery sevoflurane application.