Patent ID: 6417133
Filing Date: 2002-07-09
Classification: B01J,C07F,Y02P

Abstract:
An oxidation catalyst comprising a carbon support having a noble metal and a promoter at a surface of the carbon support, wherein:the catalyst is characterized as yielding less than 0.5 mmole of carbon monoxide per gram of catalyst when a dry sample of the catalyst, after being heated at a temperature of about 500Â° C. for about 1 hour in a hydrogen atmosphere and before being exposed to an oxidant following the heating in the hydrogen atmosphere, is heated in a helium atmosphere from about 20 to about 900Â° C. at a rate of about 10Â° C. per minute, and then at about 900Â° C. for about 30 minutes; said promoter constitutes at least 0.05% by weight of the catalyst; and the carbon support has a specific surface area of from about 10 to about 3000 m2/g, as measured by the Brunauer-Emmett-Teller method.