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| Number | Title | Issue Date |
| 5568777 | Split flame burner for reducing NOx formation An improved pulverized coal burner that reduces the formation of nitrogen oxides. The coal burner includes fuel splitters that separate a mixture of primary air and coal into a plurality of streams while the mixture is discharged through a diffuser having... | 10/29/1996 |
| 5567226 | Apparatus and method for enhancing the performance of a particulate collection device The present invention provides an apparatus and method to improve the performance of a variety of particulate collection devices. Gaseous ammonia is injected by one or more injectors into a waste gas upstream from a particulate collection device. The amou... | 10/22/1996 |
