Appeal No. 1997-3094
Application 08/405,279
claims 25-42, which are all of the claims remaining in the
application.
THE INVENTION
Appellants claim a method for oxidizing oxidizable
components of a gas-borne stream by use of a recited
catalyst. Claims 25 and 26 are illustrative and read as2
follows:
25. A method for oxidizing oxidizeable components of a
gas-borne stream comprises contacting the stream with a
catalyst composition at a temperature high enough to catalyze
oxidation of at least some of the oxidizeable component, the
catalyst composition comprising a catalytic material having a
BET surface area of at least 10 m /g and consists of a 2
combination of bulk ceria having a BET surface area of at
least about 10 m /g and a bulk second metal oxide selected2
from the class consisting of one or more of titania, zirconia,
ceria-zirconia, silica, alumina-silica, and "-alumina.
26. A method for treating a gas-borne stream comprising
a diesel engine exhaust stream containing a volatile organic
fraction comprises contacting the stream with a catalyst
composition at a temperature high enough to catalyze oxidation
of at least some of the volatile organic fraction, the
catalyst composition comprising a catalytic material having a
2 A gas-borne stream is “a gaseous stream which may
contain non-gaseous components such as solid particulates
and/or vapors, liquid mist or droplets, and/or solid
particulates wetted by a liquid” (specification, page 5, lines
28-31).
2
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