公开(公告)号：US20170038065A1

公开(公告)日：2017-02-09

申请号：US15222167

申请日：2016-07-28

Applicant: Breen Energy Solutions

Inventor： Bernard P. Breen ,  Chetan Chothani ,  Alan DePaoli ,  Charles Lockert

IPC: F23D99/00 ,  F23C5/08

CPC classification number: F23D91/00 ,  F23C5/08 ,  F23C6/047 ,  F23C2201/101 ,  F23J2215/101

Abstract: A method and improved furnace for reducing nitrogen oxide emissions from a furnace having a plurality of primary fuel injectors and a plurality of spaced apart over-fire air injectors positioned above the primary fuel injectors are disclosed. Injection of over-fire air produces zones of cooler combustion gasses containing over-fire air that separate zones of hot combustion gasses containing nitrogen oxides. Reburn fuel injectors inject a reburn fuel into the zones of hot combustion making the effluent combustion gases containing nitrogen oxides partially or totally fuel-rich in order to further reduce nitric oxide.

Abstract translation: 公开了一种用于减少来自具有多个主燃料喷射器的炉的氮氧化物排放的方法和改进的炉，以及位于主燃料喷射器上方的多个间隔开的过火空气喷射器。 喷射过火空气产生含有过火空气的较冷燃烧气体的区域，其分离含有氮氧化物的热燃烧气体区域。 再燃燃料喷射器将再燃燃料注入热燃烧区域，使含有部分或完全富含燃料的氮氧化物的废气燃烧气体进一步减少一氧化氮。