公开(公告)号：US20120222591A1

公开(公告)日：2012-09-06

申请号：US13040666

申请日：2011-03-04

申请人： David Greenhut ,  John Elston ,  Michael Mazzolla ,  Alfred Edwards

发明人： David Greenhut ,  John Elston ,  Michael Mazzolla ,  Alfred Edwards

IPC分类号： F23J15/00

CPC分类号： F23J15/06 ,  B01D53/8631 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20707 ,  B01D2255/20738 ,  B01D2258/0283 ,  F01K3/247 ,  F01K13/00 ,  F22B1/1876 ,  F22B37/008 ,  F23J15/006 ,  F23J2215/10 ,  F23J2219/10 ,  F23L15/045 ,  Y02E20/12 ,  Y02E20/348

摘要： A method of selective catalytic NOX reduction in a power boiler and a power boiler with selective catalytic NOX reduction. Fuel is combusted in a furnace of the boiler and a flue gas stream that includes NOX is generated. The flue gas stream is conducted from the furnace along a flue gas channel to a stack. The flue gas stream is cooled in a heat recovery area, including an economizer section, arranged in the flue gas channel. At least a portion of the NOX is reduced to N2 in an NOX catalyst arranged in the flue gas channel downstream of the economizer section. The flue gas is further cooled and heated air is generated in a gas-to-air heater arranged in the flue gas channel downstream of the economizer section and upstream of the NOX catalyst.

摘要翻译： 在电力锅炉和选择性催化NO x还原的动力锅炉中选择性催化NO x还原的方法。 燃料在锅炉的炉中燃烧，产生包括NOX的烟道气。 烟道气从炉子沿着烟气通道传送到堆垛。 烟道气在热回收区域被冷却，该热回收区域包括布置在烟气通道中的节能器部分。 在排放在节能器部分下游的烟道气通道中的NO x催化剂中，至少一部分NO x还原成N2。 烟道气被进一步冷却，并且在排放在节能器部分下游的废气通道和NOX催化剂上游的气体 - 空气加热器中产生加热空气。

公开(公告)号：US20120160142A1

公开(公告)日：2012-06-28

申请号：US13182763

申请日：2011-07-14

申请人： David Greenhut ,  John Elston ,  Michael Mazzolla ,  Alfred Edwards

发明人： David Greenhut ,  John Elston ,  Michael Mazzolla ,  Alfred Edwards

IPC分类号： F23J15/02 ,  F23N3/00 ,  F23L15/02

CPC分类号： F23J15/06 ,  B01D53/8631 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20707 ,  B01D2255/20738 ,  B01D2258/0283 ,  F01K3/247 ,  F01K13/00 ,  F22B1/1876 ,  F22B37/008 ,  F23J15/006 ,  F23J2215/10 ,  F23J2219/10 ,  F23L15/045 ,  Y02E20/12 ,  Y02E20/348

摘要： A method of selective catalytic NOX reduction in a power boiler and a power boiler with selective catalytic NOX reduction. Fuel is combusted in a furnace of the boiler and a flue gas stream that includes NOX is generated. The flue gas stream is conducted from the furnace along a flue gas channel to a stack. The flue gas stream is cooled in a heat recovery area, including an economizer section, arranged in the flue gas channel. At least a portion of the NOX is reduced to N2 in an NOX catalyst arranged in the flue gas channel downstream of the economizer section. The flue gas is further cooled, and heated air is generated in a gas-to-air heater arranged in the flue gas channel downstream of the economizer section and upstream of the NOX catalyst. The gas-to-air heater may be a tubular air heater or a heat exchanger with a recirculating heat transfer fluid.

摘要翻译： 在电力锅炉和选择性催化NO x还原的动力锅炉中选择性催化NO x还原的方法。 燃料在锅炉的炉中燃烧，产生包括NOX的烟道气。 烟道气从炉子沿着烟气通道传送到堆垛。 烟道气在热回收区域被冷却，该热回收区域包括布置在烟气通道中的节能器部分。 在排放在节能器部分下游的烟道气通道中的NO x催化剂中，至少一部分NO x还原成N2。 烟道气被进一步冷却，并且在排放在节能器部分下游的排气通道和NOX催化剂上游的气体 - 空气加热器中产生加热空气。 气体 - 空气加热器可以是管状空气加热器或具有循环传热流体的热交换器。