Metal working – Method of mechanical manufacture – Catalytic device making
Reexamination Certificate
2003-12-11
2008-10-28
Bryant, David P. (Department: 3726)
Metal working
Method of mechanical manufacture
Catalytic device making
C029S402010, C029S402030, C029S402090, C029S402110, C029S890031, C422S176000, C422S177000, C422S178000, C428S593000
Reexamination Certificate
active
07441332
ABSTRACT:
To provide a method for recovering performance of a discharge gas processing apparatus, the method being capable of recovering NOxremoval performance of a deteriorated NOxremoval catalyst without replacing the deteriorated NOxremoval catalyst with a new catalyst and without adding a new catalyst.After a honeycomb catalyst1having gas conduits for feeding a gas to be treated has been placed and used in a discharge gas conduit of a discharge gas processing apparatus10, the honeycomb catalyst1is rearranged such that a portion of the honeycomb catalyst1—the portion being on the upstream side in terms of the flow of the gas to be treated and extending to cover a predetermined range is transferred from the inlet side of the discharge gas conduit.
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Oka Yousuke
Shimada Hiroshi
Bryant David P.
Sughrue & Mion, PLLC
Taousakis Alexander P
The Chugoku Electric Power Co., Inc.
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