Method for flue gas conditioning with the decomposition products of
ammonium sulfate or ammonium bisulfate
    2.
    发明授权
    Method for flue gas conditioning with the decomposition products of ammonium sulfate or ammonium bisulfate 失效
    用硫酸铵或硫酸氢铵分解产物进行烟气调理的方法

    公开(公告)号:US4872887A

    公开(公告)日:1989-10-10

    申请号:US243435

    申请日:1988-09-12

    IPC分类号: B03C3/013 B03C3/017

    CPC分类号: B03C3/017 B03C3/013

    摘要: A method is provided for enhancing the efficiency of fly ash collection in an electrostatic precipitator by lowering the resistivity of the fly ash particles in the flue gas, comprising the steps of introducing an aqueous solution of ammonium sulfate or ammonium bisulfate into a slipstream of hot flue gas or hot combustion air in a chamber external to the main flue gas duct wherein thermal decomposition is effected, removing the NH.sub.3 decomposition product by catalytic oxidation to increase the effectiveness of the SO.sub.3 decomposition product, and then distributing the SO.sub.3 decomposition product into the main flue gas stream exiting from the air preheater at a point upstream from the electrostatic precipitator.

    摘要翻译: 提供一种通过降低烟道气中的飞灰颗粒的电阻率来提高静电除尘器中的粉煤灰收集效率的方法,包括以下步骤:将硫酸铵或硫酸氢铵的水溶液引入热烟道 气体或热燃烧空气在主烟道气管道外部的室内进行热分解,通过催化氧化除去NH 3分解产物,以提高SO3分解产物的有效性,然后将SO 3分解产物分配到主烟道 在静电除尘器上游的一点处从空气预热器排出的气流。

    Method of removing selenium from flue gases
    4.
    发明授权
    Method of removing selenium from flue gases 失效
    从烟道气中去除硒的方法

    公开(公告)号:US5192514A

    公开(公告)日:1993-03-09

    申请号:US840452

    申请日:1992-02-24

    IPC分类号: B01D53/46

    CPC分类号: B01D53/46

    摘要: A method of removing gaseous selenium from a flue gas is disclosed. The method includes injecting an effective amount of ammonia into the flue gas to produce a solid selenium reaction product. The solid selenium reaction product is removed from the flue gas by undergoing deposition in a filter assembly. The filter assembly may then be cleaned through conventional methods.

    摘要翻译: 公开了从烟道气中除去气态硒的方法。 该方法包括将有效量的氨注入烟道气中以产生固体硒反应产物。 通过在过滤器组件中进行沉积从固体硒反应产物中除去烟道气。 然后可以通过常规方法清洁过滤器组件。