Method for the selective oxidation of carbon monoxide in hydrogen-containing gases
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United States of America Patent
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Jan 6, 2004
Grant Date -
N/A
app pub date -
May 23, 2001
filing date -
Sep 21, 1998
priority date (Note) -
Expired
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Abstract
The invention relates to a method for the selective catalytic oxidation of carbonmonoxide (CO) in H.sub.2 -rich, CO.sub.2 - and H.sub.2 -containing gases in the presence of a noble metal catalyst on an alumina carrier with the addition of air as oxidizing agent. According to the invention, with this method .alpha.-AL.sub.2 O.sub.3 carrier can be less than 25 m.sup.2 /gram. The noble metal can be ruthenium or platinum and preferably a combination of ruthenium (Ru) and platinum (Pt), the sum of the quantities of RU and Pt being less than or equal to 1.0% (m/m).
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