| 摘要 |
New combustors, and methods of operating same, which produce lower emissions, particularly lower emissions of nitrogen oxides and CO. Means and methods are provided for supplying separate streams of air to primary and secondary combustion regions of a combustor, and expanding combustion products when passing same from said primary combustion region to said secondary combustion region. In preferred embodiments, unheated air can be used in said primary combustion region, and/or a second stream of air mixed with said combustion products during said expansion thereof.
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