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1. 发明授权

US5024171A Reduction of acidic emissions from combustion of sulfur-laden fuels 失效
标题翻译：减少含硫燃料燃烧产生的酸性排放
公开(公告)号：US5024171A
公开(公告)日：1991-06-18
申请号：US496872
申请日：1990-03-19
申请人： Henry V. Krigmont , Everett L. Coe, Jr. , Barry J. Southam
发明人： Henry V. Krigmont , Everett L. Coe, Jr. , Barry J. Southam
IPC分类号： B01D53/50 , F23J15/00
CPC分类号： B01D53/50 , F23J15/006 , F23G2207/106 , F23G2207/60 , F23J2215/20 , F23J2217/102
摘要： The sulfur trioxide in the combustion gas stream of a power plant is reacted with injected ammonia to produce a solid ammonium sulfate that is captured, and not released to the atmosphere. A feedforward signal indicative of the total mass flow of sulfur trioxide is determined as the product of the measured boiler load and the sulfur trioxide content of the combustion gas, as measured prior to the addition of ammonia. The ammonia mass flow injection rate is preferably at a normal stoichiometric ratio of from about 1.0 to about 1.1 relative to the sulfur trioxide mass flow rate (that is, from about 2.0 to about 2.2 times the molar mass flow rate of the sulfur trioxide), avoiding the production of ammonia bisulfate. The ammonia content of the combustion gas stream is measured downstream of the location at which ammonia is added. Based upon this feedback measurement, the amount of ammonia added is adjusted to be just sufficient to react with all of the sulfur trioxide, but not in such excess as to be environmentally detrimental.
摘要翻译：发电厂燃烧气流中的三氧化硫与注入的氨反应生成固体硫酸铵，其被捕获而不被释放到大气中。表示三氧化硫的总质量流量的前馈信号被确定为在加入氨之前测量的测量的锅炉负荷和燃烧气体的三氧化硫含量的乘积。氨质量流量注入速率优选相对于三氧化硫质量流量（即，三氧化硫的摩尔质量流量的约2.0至约2.2倍）为约1.0至约1.1的正常化学计量比，避免生产氨硫酸氢铵。在添加氨的位置的下游测量燃烧气体流的氨含量。基于这种反馈测量，加入的氨的量被调整为恰好足以与所有的三氧化硫反应，但不是过量的，因为对环境有害。

2. 发明授权

US5029535A Control of addition of conditioning agents to flue gas 失效
标题翻译：控制烟气中添加调理剂
公开(公告)号：US5029535A
公开(公告)日：1991-07-09
申请号：US523311
申请日：1990-05-14
申请人： Henry V. Krigmont , Everett L. Coe, Jr. , Barry J. Southam
发明人： Henry V. Krigmont , Everett L. Coe, Jr. , Barry J. Southam
IPC分类号： B01D53/34 , B03C3/013 , F23J15/02
CPC分类号： F23J15/02 , B01D53/346 , B03C3/013 , Y10S55/30
摘要： Additions of conditioning agents to a particulate-containing flue gas stream are controlled by a controller operating from feedforward and feedback signals received from sensors in the combustion and gas cleanup system, and, optionally, from the power consumption level of the electrostatic precipitator. The flow rates of the conditioning agents, such as sulfur trioxide and ammonia, are thereby balanced to achieve an optimal removal of particulate matter and also sulfur and sulfur compounds from the gas stream before it is exhausted to the atmosphere. A typical feedforward signal is the boiler loading, and typical feedback signals include residual sulfur trioxide and ammonia levels and stack gas opacity.

3. 发明授权

US4466815A Gas conditioning apparatus 失效
标题翻译：燃气调节装置
公开(公告)号：US4466815A
公开(公告)日：1984-08-21
申请号：US374516
申请日：1982-05-03
申请人： Barry J. Southam
发明人： Barry J. Southam
IPC分类号： B01D53/86 , B03C3/013 , B03C3/16
CPC分类号： B01D53/8609 , B03C3/013
摘要： A gas conditioning apparatus for conditioning flue gases and more particularly an improved means for purging a gas conditioning system of latent or residual sulfur trioxide which is normally produced by the gas conditioning system for conditioning of flue gases.
摘要翻译：一种用于调节烟道气的气体调节装置，更具体地说，一种用于清洗通常由用于调节烟道气的气体调节系统产生的潜在或残余三氧化硫的气体调节系统的改进装置。

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