title: Adsorbent comparisons for anesthetic gas capture in hospital air emissions.
abstract: For the development of emission control strategies, activated carbon, zeolite, molecular sieves, and a silica gel were tested for adsorption of the newer anesthetic gases isoflurane, sevoflurane, and desflurane from air. The activated carbon Norit GCA 48 was selected for the best performance, and adsorption isotherms at room temperature were developed for the three anesthetics. Equilibrium capacities for this carbon were in the range of 500 to 1,000 mg g(-1) for these anesthetics at partial pressures ranging from 5 to 45 Torr, with the most volatile compound (desflurane) showing the least favorable adsorption. Activated carbons are therefore suggested for use as effective adsorbents in emission control of these anesthetic gases from hospitals.
authors.affiliation: a Department of Chemical Engineering , University of Waterloo , Waterloo , Ontario, Canada.
authors.forename: Mina
authors.initials: M
authors.lastname: Mehrata
authors.affiliation: a Department of Chemical Engineering , University of Waterloo , Waterloo , Ontario, Canada.
authors.forename: Carol
authors.initials: C
authors.lastname: Moralejo
authors.affiliation: a Department of Chemical Engineering , University of Waterloo , Waterloo , Ontario, Canada.
authors.forename: William A
authors.initials: WA
authors.lastname: Anderson
mesh_terms: D000327:Adsorption; D000393:Air Pollutants / Q000737:chemistry; D018685:Anesthetics, Inhalation / Q000737:chemistry*; D002606:Charcoal / Q000737:chemistry*; D006761:Hospitals; D007530:Isoflurane / Q000737:chemistry*; D008738:Methyl Ethers / Q000737:chemistry*; D058428:Silica Gel / Q000737:chemistry*; D017641:Zeolites / Q000737:chemistry*
chemical_list: D000393:Air Pollutants; D018685:Anesthetics, Inhalation; D008738:Methyl Ethers; D017641:Zeolites; D002606:Charcoal; D058428:Silica Gel; D007530:Isoflurane
keywords: Anesthetics; adsorbent; adsorption; greenhouse gases; isoflurane; isotherm; sevoflurane and desflurane