Abstract: Recovery of a halogenated hydrocarbon is performed by removing the halogenated hydrocarbon from an accompanying gas and/or temporarily storing the halogenated hydrocarbon on sorption filters, and releasing the halogenated hydrocarbon in targeted manner. The halogenated hydrocarbon serves for removal of an expiration gas using a steam carrier. A flow of the halogenated hydrocarbon takes place through two sorbents, (1) a hydrophobic carbon molecular sieve and (2) a hydrophobic zeolite, in two sorbent beds, spatially following one another. Air mixed with steam or steam has a temperature of the gases between 90° C. and 100° C. at normal pressure. In a filter for carrying out theabove recovery method, two filter beds are disposed to spatially follow one another.
Abstract: A filter cartridge for recovering halogenated hydrocarbons (HKW), such as those occurring in inhalation anesthetics in the medical field, contains a first gas inlet; a container which contains a filter insert; wherein the container is connected over a connection with a cover and with a gas release; wherein the container is united via two sealing rings and a filter plate with the cover; wherein the filter insert contains a zeolite; wherein the filter insert has openings; wherein the filter insert adapts with the base of the filter insert to recesses in the container.
Type:
Grant
Filed:
August 18, 2008
Date of Patent:
October 18, 2011
Assignee:
ZeoSys GmbH
Inventors:
Bernd Fuesting, Peter Muenn, Hartmut Welke, Helmut Stach
Abstract: Recovery of a halogenated hydrocarbon is performed by removing the halogenated hydrocarbon from an accompanying gas and/or temporarily storing the halogenated hydrocarbon on sorption filters, and releasing the halogenated hydrocarbon in targeted manner. The halogenated hydrocarbon serves for removal of an expiration gas using a steam carrier. A flow of the halogenated hydrocarbon takes place through two sorbents, (1) a hydrophobic carbon molecular sieve and (2) a hydrophobic zeolite, in two sorbent beds, spatially following one another. Air mixed with steam or steam has a temperature of the gases between 90° C. and 100° C. at normal pressure. In a filter for carrying out theabove recovery method, two filter beds are disposed to spatially follow one another.
Abstract: A filter cartridge for recovering halogenated hydrocarbons (HKW), such as those occurring in inhalation anesthetics in the medical field, contains a first gas inlet; a container which contains a filter insert; wherein the container is connected over a connection with a cover and with a gas release; wherein the container is united via two sealing rings and a filter plate with the cover; wherein the filter insert contains a zeolite; wherein the filter insert has openings; wherein the filter insert adapts with the base of the filter insert to recesses in the container.
Type:
Application
Filed:
August 18, 2008
Publication date:
April 23, 2009
Applicant:
ZeoSys GmbH
Inventors:
Bernd FUESTING, Peter MUENN, Hartmut WELKE, Helmut STACH