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    • 13. 发明授权
    • Boiler containing denitrator
    • 含有脱硝机的锅炉
    • US4160805A
    • 1979-07-10
    • US815539
    • 1977-07-14
    • Hideya InabaToshio TatsumiChihiro Iwai
    • Hideya InabaToshio TatsumiChihiro Iwai
    • B01D53/86B01J8/02C01B21/00
    • B01D53/8631F23J15/003F23J2215/10
    • In a boiler having a plurality of heat exchanger stages such as a superheater, an evaporator and a preheater, disposed in a combustion gas channel between heat exchangers including an optimum catalytic reaction temperature region are a denitration catalyst layer crossing said channel and a reductant feeding device for adding a reductant such as ammonia gas at a point a little short of catalyst layer. The denitration catalyst layer comprises a number of plate-like catalyst bodies whose plate surfaces extend along the direction of flow of gas, and desirably it is honey-comb-shaped. If the boiler is a waste heat boiler, the denitration catalyst layer will be disposed between the superheater and the evaporator.
    • 在具有多个热交换器级的锅炉中,设置在包括最佳催化反应温度区域的热交换器之间的燃烧气体通道中的过热器,蒸发器和预热器是与所述通道交叉的脱硝催化剂层和还原剂供给装置 用于在稍短于催化剂层的点处加入氨气等还原剂。 脱硝催化剂层包括板状表面沿着气体流动方向延伸的板状催化剂体,理想的是蜂巢状。 如果锅炉是废热锅炉,则脱硝催化剂层将设置在过热器和蒸发器之间。