초록 ▼

A process is provided for removing hydrogen peroxide and oil out the exhaust gas emitted from a sterilization chamber, such as from a STERRAD.RTM. medical instrument sterilizer. The exhaust gas is passed through either alumina or a mass of metal wool, which sorbs the lubricating oil out of the exhau

A process is provided for removing hydrogen peroxide and oil out the exhaust gas emitted from a sterilization chamber, such as from a STERRAD.RTM. medical instrument sterilizer. The exhaust gas is passed through either alumina or a mass of metal wool, which sorbs the lubricating oil out of the exhaust gas, and then through alumina coated with a precious metal catalyst, such as Pd, Pt, Rh and alloys and compounds thereof, which decomposes the hydrogen peroxide into water and oxygen. The precious metal coating on the alumina may be sufficiently discontinuous to allow residual lubricating oil in the exhaust gas to be sorbed into the alumina.

대표청구항 ▼

1. A method of cleaning gas exhausting from a chamber; the method comprising the steps of:exhausting an exhaust gas which comprises hydrogen peroxide from the chamber along a flow path from the chamber to an exit port; passing the exhaust gas through oil absorbent media not coated with precious meta

1. A method of cleaning gas exhausting from a chamber; the method comprising the steps of:exhausting an exhaust gas which comprises hydrogen peroxide from the chamber along a flow path from the chamber to an exit port; passing the exhaust gas through oil absorbent media not coated with precious metal catalyst, thereby sorbing entrained lubricating oil out the exhaust gas; passing the exhaust gas over a bed of members disposed within the flow path, the members comprising alumina and being coated with a precious metal catalyst for hydrogen peroxide; and catalytically reacting hydrogen peroxide in the exhaust gas with the catalyst to convert said hydrogen peroxide to water and oxygen; whereby the exhaust gas reaching the exit has a substantially reduced amount of hydrogen peroxide compared to the chamber gas.