Simplified article for carbon monoxide removal

Details Simplified article for carbon monoxide removal Simplified article for carbon monoxide removal

2006-06-22

2010-11-23

Leung, Jennifer A (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including heat exchanger for reaction chamber or reactants...

C422S198000, C422S211000, C422S222000, C423S246000, C423S247000, C423S658300

Reexamination Certificate

active

07837953

ABSTRACT:
Provided are improved carbon monoxide removal articles and processes for treating hydrogen gas streams to achieve very low threshold levels of carbon monoxide. The articles have a substrate with an inlet end, an outlet end, a length extending between the inlet end to the outlet end, wall elements and a plurality of cells defined by the wall elements. A first layer is deposited on the wall elements from the inlet end and extending at least partially toward the outlet end. The first layer has a preferential carbon monoxide oxidation catalyst. A second layer contains a methanation catalyst, and is deposited on at least part of the first layer from the outlet end. The second layer has a length that is about 10-70% of the substrate length.

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