Nuvera Fuel Cells, Inc.

Chunming (Frank C) Qi

Lawrence G Clawson

Darryl Edward Pollica

Mark R Hagan

William F Northrop

Alexis Smith

According to the present invention, a temperature profile within a preferential oxidation reactor is controlled using a two phase water/steam system to provide a temperature range within the reactor () which favors the selective oxidation of CO in a hydrogen rich reformate stream. The reformate is flowed in a mixture with oxygen over a preferential oxidation catalyst (). The temperature profile is controlled by flowing a stream of water proximate to the preferential oxidation catalyst () so as the stream of water and the reformate stream passing over the catalyst () are in a heat transfer arrangement. The stream of water is maintained as a two phase stream from a point at which the water reaches its boiling temperature to a point proximate an outlet from which the stream of water exits the reactor ().

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Lexington, MA, United States of America

Chunming (Frank C) Qi