Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Reexamination Certificate
2005-10-25
2005-10-25
Basichas, Alfred (Department: 3749)
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
C431S008000, C110S345000
Reexamination Certificate
active
06957955
ABSTRACT:
Fuel such as coal is combusted by feeding fuel and gaseous oxidant containing more than 21 vol. % oxygen, and preferably 21.8 to 29 vol. % oxygen, to a combustion stage at a stoichiometric ratio below that at which, if the stage were operated with air as the only oxidant, the same amount of NOx would be produced, and combusting the fuel and oxidant in said stage to produce combustion products and unburned fuel.
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Bool, III Lawrence E.
Kobayashi Hisashi
Basichas Alfred
Black Donald T.
Praxair Technology Inc.
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