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1.发明授权
公开(公告)号：US4533364A
公开(公告)日：1985-08-06
申请号：US462754
申请日：1983-02-01
CPC分类号： 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 gas in a chamber external to the main flue gas duct wherein thermal decomposition is effected and distributing the decomposition products into the main flue gas stream exiting from the air preheater at a point upstream from the electrostatic precipitator.
摘要翻译： 提供了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飞灰收集效率的方法，包括以下步骤：将硫酸铵或硫酸氢铵的水溶液引入热气流 在主烟道管道外部的室中，其中进行热分解，并将分解产物分配到从静电除尘器上游的一个点处从空气预热器排出的主烟道气流中。
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2.发明授权
公开(公告)号：US4872887A
公开(公告)日：1989-10-10
申请号：US243435
申请日：1988-09-12
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。
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公开(公告)号：US5011516A
公开(公告)日：1991-04-30
申请号：US432068
申请日：1989-11-06
IPC分类号： B03C3/013
CPC分类号： B03C3/013
摘要： A method is provided for improving the electrostatic precipitation of particulates, i.e., from combustion gases by withdrawing part of the flue gases, catalytically converting the SO.sub.2 to SO.sub.3 and reinjecting it into the main flue stream.
摘要翻译： 提供了一种改进微粒的静电沉淀的方法，即通过抽出一部分烟道气从燃烧气体中催化转化SO 2至SO 3并将其再注入主烟道气中。
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公开(公告)号：US5192514A
公开(公告)日：1993-03-09
申请号：US840452
申请日：1992-02-24
申请人： Edward B. Dismukes
发明人： Edward B. Dismukes
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。
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