Gas purification-treating agents and gas purifying apparatuses
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United States of America Patent
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Jul 8, 2003
Grant Date -
Nov 22, 2001
app pub date -
Dec 9, 1998
filing date -
Sep 18, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed are a gas purification-treating agent and a gas purifying apparatus, which treat carbon monoxide and/or hydrogen contained in a gas in the presence of oxygen. The gas purification-treating agent consists of an adsorbent having carbon dioxide and/or water adsorptivity, and a metal or metal compound which is carried on the adsorbent and activates oxidation reaction of carbon monoxide and/or hydrogen. The gas purifying apparatus has the gas purification-treating agent contained in a container having a gas inlet and a gas outlet. The adsorbent adsorbs carbon dioxide and/or water contained originally in the gas, as well as, carbon dioxide and/or water to be formed by the oxidation reaction of carbon monoxide and/or hydrogen. The metal or metal compound is at least one selected from Au-on-metal oxides, Au-on-metal hydroxides and an Au colloidal powder, or palladium and/or platinum.
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