公开(公告)号：US07638107B1

公开(公告)日：2009-12-29

申请号：US12137302

申请日：2008-06-11

申请人： Jeffrey Philip Wirt ,  Dan W. Ott ,  Brian James Duck

发明人： Jeffrey Philip Wirt ,  Dan W. Ott ,  Brian James Duck

IPC分类号： B01D53/56 ,  B01D53/62 ,  B01D53/86 ,  B01D53/90

CPC分类号： B01D53/8631 ,  B01D53/8656 ,  B01D2251/2062 ,  B01D2257/404 ,  B01D2257/502

摘要： A multi-bed selective catalytic reduction system comprising a gas input duct, a first ammonia injection grid assembly located downstream from the gas input duct, a first selective catalytic reduction catalyst assembly located downstream from the first ammonia injection grid assembly, a second ammonia injection grid assembly located downstream from the first selective catalytic reduction catalyst assembly, a second selective catalytic reduction catalyst assembly located downstream from the second ammonia injection grid assembly, and an exhaust stack located downstream from the second selective catalytic reduction catalyst assembly. By passing a combustion waste stream through two sets of ammonia injection grid assemblies and selective catalytic reduction catalyst assemblies, the multi-bed selective catalytic reduction system removes more nitrogen oxide emissions from the waste stream, uses less ammonia to do so, and results in less ammonia emissions than systems with only one ammonia injection grid assembly and selective catalytic reduction catalyst assembly.

摘要翻译： 一种多床选择性催化还原系统，包括气体输入管道，位于气体输入管道下游的第一氨注入栅格组件，位于第一氨注入栅组件下游的第一选择性催化还原催化剂组件，第二氨注入栅格 位于第一选择性催化还原催化剂组件下游的第二选择性催化还原催化剂组件，位于第二氨注入格栅组件下游的第二选择性催化还原催化剂组件和位于第二选择性催化还原催化剂组件下游的排气叠层。 通过将燃烧废物流通过两组氨注入格栅组件和选择性催化还原催化剂组件，多床选择性催化还原系统从废物流中除去更多的氮氧化物排放物，使用较少的氨来实现，并且导致较少的 氨排放量比仅有一个氨注入电网组件和选择性催化还原催化剂组件的系统。

公开(公告)号：US08145044B1

公开(公告)日：2012-03-27

申请号：US12137275

申请日：2008-06-11

申请人： Jeffrey Philip Wirt ,  Dan W. Ott

发明人： Jeffrey Philip Wirt ,  Dan W. Ott

IPC分类号： A61H33/06

CPC分类号： F23J15/003 ,  B01D53/90 ,  B01D2251/2062 ,  F23J2215/10 ,  F23J2219/10

摘要： An air ammonia heater and vaporization chamber system utilizing a contiguous vaporization chamber having an inlet for receiving dilution air, which is passed across at least one heating element integrated into the vaporization chamber to heat and pre-heat the vaporization chamber. Aqueous or anhydrous ammonia is injected from at least one ammonia injector, which is integrated into the vaporization chamber, into the heated dilution air. The heated ammonia/air mixture may then be passed through a bed of packing prior to being released from the vaporization chamber. The bed of packing maintains the heated, homogenous ammonia/air mixture at a minimum temperature of 350° F. to ensure the air/ammonia mixture does not condense. The air ammonia heater and vaporization chamber system may be used in the vaporization and bleeding of ammonia with air for NOx reduction in the flue gas from heat recovery steam generation systems, packaged boilers, simple cycle catalyst systems or fired heaters.

摘要翻译： 一种空气氨加热器和蒸发室系统，其利用具有用于接收稀释空气的入口的连续蒸发室，该蒸发室通过集成到蒸发室中的至少一个加热元件以加热和预热蒸发室。 从集成到蒸发室中的至少一个氨注入器将水或无水氨注入加热的稀释空气中。 然后可以将加热的氨/空气混合物在从蒸发室释放之前通过填料床。 包装床在350°F的最低温度下保持加热均匀的氨/空气混合物，以确保空气/氨混合物不会冷凝。 空气氨加热器和蒸发室系统可用于氨气与空气的蒸发和渗出，用于来自热回收蒸汽发生系统，包装锅炉，简单循环催化剂系统或燃烧加热器的烟道气中的NOx还原。