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Two stage catalytic combustorA catalytic combustor (14) includes a first catalytic stage (30), a second catalytic stage (40), and an oxidation completion stage (49). The first catalytic stage receives an oxidizer (e.g., 20) and a fuel (26) and discharges a partially oxidized fuel/oxidizer mixture (36). The second catalytic stage receives the partially oxidized fuel/oxidizer mixture and further oxidizes the mixture. The second catalytic stage may include a passageway (47) for conducting a bypass portion (46) of the mixture past a catalyst (e.g., 41) disposed therein. The second catalytic stage may have an outlet temperature elevated sufficiently to complete oxidation of the mixture without using a separate ignition source. The oxidation completion stage is disposed downstream of the second catalytic stage and may recombine the bypass portion with a catalyst exposed portion (48) of the mixture and complete oxidation of the mixture. The second catalytic stage may also include a reticulated foam support (50), a honeycomb support, a tube support or a plate support.
Document ID
20100027521
Acquisition Source
Glenn Research Center
Document Type
Other - Patent
Authors
Alvin, Mary Anne
Bachovchin, Dennis
Smeltzer, Eugene E.
Lippert, Thomas E.
Bruck, Gerald J.
Date Acquired
August 24, 2013
Publication Date
April 6, 2010
Subject Category
Mechanical Engineering
Funding Number(s)
CONTRACT_GRANT: NAS3-00006
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-7,691,338
Patent Application
US-Patent-Appl-SN-10/797,455

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