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1. 发明授权

US5048431A Method and apparatus for reducing sulfur dioxide content in flue gases 失效
标题翻译：减少烟气中二氧化硫含量的方法和装置
公开(公告)号：US5048431A
公开(公告)日：1991-09-17
申请号：US548183
申请日：1990-07-05
申请人： Ronald R. Landreth , Lee R. Anderson
发明人： Ronald R. Landreth , Lee R. Anderson
IPC分类号： B01D53/50 , F23J7/00
CPC分类号： B01D53/508 , F23J7/00
摘要： A method and apparatus are employed to reduce the sulfur dioxide produced by the combustion of a sulfur-containing fule in a combustion chamber. Part of the combustion air is introduced into the combustion chamber with and closely adjacent the fuel. Another part of the combustion air is introduced into the combustion chamber above and downstream of the fuel and relatively remote therefrom under conditions which buffer the flame front and reduce peak flame temperatures therein. Finely divided limestone particles or the like are aspirated into the combustion chamber by the air introduced above the fuel and distributed thereby throughout the gases flowing downstream through the combustion chamber wherein the limestone particles are calcined to lime particles which react with the sulfur dioxide in the combustion reaction gases to produce calcium sulfate. There is no premixing of the particles and the aspirating air before they enter the combustion chamber. Various parameters are controlled to produce the desired results.
摘要翻译：采用一种方法和装置来减少由燃烧室中的含硫气泡燃烧产生的二氧化硫。燃烧空气的一部分被引入燃烧室并且紧邻燃料。燃烧空气的另一部分在缓冲火焰前沿并降低其中的峰值火焰温度的条件下被引入到燃料的上游和下游并且相对远离燃烧室。精细分散的石灰石颗粒等通过引入燃料上方的空气吸入燃烧室，并分布在整个燃烧室下游的气体中，其中石灰石颗粒被煅烧成与燃烧中的二氧化硫反应的石灰颗粒反应气体产生硫酸钙。颗粒和吸入空气在进入燃烧室之前没有预混合。控制各种参数以产生期望的结果。

2. 发明授权

US5246364A Method and apparatus for reducing sulfur dioxide content in flue gases 失效
标题翻译：减少烟气中二氧化硫含量的方法和装置
公开(公告)号：US5246364A
公开(公告)日：1993-09-21
申请号：US548261
申请日：1990-07-05
申请人： Ronald R. Landreth , Lee R. Anderson
发明人： Ronald R. Landreth , Lee R. Anderson
IPC分类号： B01D53/50 , F23J3/00 , F23J7/00
CPC分类号： F23J3/00 , B01D53/508 , F23J7/00
摘要： A method and apparatus are employed to reduce the sulfur dioxide produced by the combustion of a sulfur-containing fuel in a combustion chamber. Part of the combustion air is introduced into the combustion chamber with and closely adjacent the fuel. Another part of the combustion air is introduced into the combustion chamber above and downstream of the fuel and relatively remote therefrom under conditions which buffer the flame front and reduce peak flame temperatures therein. Finely divided limestone particles or the like are aspirated into the combustion chamber by the air introduced above the fuel and distributed thereby throughout the gases flowing downstream through the combustion chamber wherein the limestone particles are calcined to lime particles which react with the sulfur dioxide in the combustion reaction gases to produce calcium sulfate. There is no premixing of the particles and the aspirating air before they enter the combustion chamber. Various parameters are controlled to produce the desired results.
摘要翻译：采用一种方法和装置来减少燃烧室中含硫燃料燃烧产生的二氧化硫。燃烧空气的一部分被引入燃烧室并且紧邻燃料。燃烧空气的另一部分在缓冲火焰前沿并降低其中的峰值火焰温度的条件下被引入到燃料的上游和下游并且相对远离燃烧室。精细分散的石灰石颗粒等通过引入燃料上方的空气吸入燃烧室，并分布在整个燃烧室下游的气体中，其中石灰石颗粒被煅烧成与燃烧中的二氧化硫反应的石灰颗粒反应气体产生硫酸钙。颗粒和吸入空气在进入燃烧室之前没有预混合。控制各种参数以产生期望的结果。

3. 发明授权

US5027723A Method and apparatus for reducing sulfur dioxide content in flue gases 失效
标题翻译：减少烟气中二氧化硫含量的方法和装置
公开(公告)号：US5027723A
公开(公告)日：1991-07-02
申请号：US144714
申请日：1988-01-14
申请人： Ronald R. Landreth , Lee R. Anderson
发明人： Ronald R. Landreth , Lee R. Anderson
IPC分类号： B01D53/50 , F23J3/00 , F23J7/00
CPC分类号： B01D53/508 , F23J3/00 , F23J7/00
摘要： A method and apparatus are employed to reduce the sulfur dioxide produced by the combustion of a sulfur-containing fuel in a combustion chamber. Part of the combustion air is introduced into the combustion chamber with and closely adjacent the fuel. Another part of the combustion air is introduced into the combustion chamber above and downstream of the fuel and relatively remote therefrom under conditions when buffer the flame front and reduce peak flame temperatures therein. Finely divided limestone particles or the like are aspirated into the combustion chamber by the air introduced above the fuel and distributed thereby throughout the gases flowing downstream through the combustion chamber wherein the limestone particles are calcined to lime particles which react with the sulfur dioxide in the combustion reaction gases to produce calcium sulfate. There is no premixing of the particles and the aspirating air before they enter the combustion chamber. Various parameters are controlled to produce the desired results.
摘要翻译：采用一种方法和装置来减少燃烧室中含硫燃料燃烧产生的二氧化硫。燃烧空气的一部分被引入燃烧室并且紧邻燃料。燃烧空气的另一部分在缓冲火焰前沿并降低其中的火焰火焰温度的条件下被引入到燃料的上游和下游并且相对远离燃烧室。精细分散的石灰石颗粒等通过引入燃料上方的空气吸入燃烧室，并分布在整个燃烧室下游的气体中，其中石灰石颗粒被煅烧成与燃烧中的二氧化硫反应的石灰颗粒反应气体产生硫酸钙。颗粒和吸入空气在进入燃烧室之前没有预混合。控制各种参数以产生期望的结果。

4. 发明申请

US20130125750A1 Reduction of Mercury Emissions From Cement Plants 审中-公开
标题翻译：减少水泥厂的汞排放
公开(公告)号：US20130125750A1
公开(公告)日：2013-05-23
申请号：US13695648
申请日：2011-04-27
申请人： Ronald R. Landreth , Xin Liu , Jon E. Miller , Arlen E. Overholt , Zhong Tang
发明人： Ronald R. Landreth , Xin Liu , Jon E. Miller , Arlen E. Overholt , Zhong Tang
IPC分类号： B01D53/12
CPC分类号： B01D53/12 , B01D53/04 , B01D53/08 , B01D53/10 , B01D2253/102 , B01D2257/2045 , B01D2257/602 , B01D2257/702 , B01J20/027 , B01J20/103 , B01J20/18 , B01J20/20 , B01J20/28023 , C04B7/364
摘要： This invention provides methods for reduction of mercury emissions from cement plants. In one method, a powdered activated carbon sorbent is injected into a gas stream of a cement plant at one or more points after the kiln and before the particulate collection device of the cement plant. Also provided is an apparatus for decreasing emissions from a cement plant, which apparatus comprises two or more beds in a series comprising a first bed which is a moving bed, and one or more remaining beds which are fixed beds, each fixed bed comprising at least one sorbent which is able to absorb at least one of mercury, hydro-carbons, and hydrochloric acid. Another method for reducing emissions from a cement plant employs the apparatus just described.
摘要翻译：本发明提供了减少水泥厂汞排放的方法。在一种方法中，将粉末状活性炭吸附剂在窑内的一个或多个点和水泥厂的颗粒收集装置之前注入到水泥厂的气流中。还提供了一种用于减少水泥厂的排放的设备，该设备包括两个或更多个床系列，包括作为移动床的第一床和一个或多个残留的床，其为固定床，每个固定床至少包括一种能够吸收汞，氢化碳和盐酸中的至少一种的吸附剂。减少水泥厂排放的另一种方法是采用刚刚描述的装置。

5. 发明申请

US20130239806A1 Reduction of Particulates in Gas Streams 审中-公开
标题翻译：减少气流中的颗粒物
公开(公告)号：US20130239806A1
公开(公告)日：2013-09-19
申请号：US13810244
申请日：2011-07-06
申请人： Ronald R. Landreth , Sidney G. Nelson, JR.
发明人： Ronald R. Landreth , Sidney G. Nelson, JR.
IPC分类号： B03C3/013
CPC分类号： B03C3/013
摘要： This invention provides methods for reducing a spark rate and/or increasing the voltage in a cold-side electrostatic precipitator through which a particulate-containing gas stream is directed, wherein said electrostatic precipitator has a spark rate and a voltage. The methods comprise injecting an amount of a halogenated carbonaceous substrate formed from a carbonaceous substrate and an elemental halogen and/or a hydrohalic acid into the particulate-containing gas stream upstream of the electrostatic precipitator, such that the spark rate decreases by about 40% or more and/or such that the voltage can be increased by about 20% or more than when said halogenated carbonaceous substrate is not injected.
摘要翻译：本发明提供了降低火花率和/或提高引导含微粒气体流的冷侧静电除尘器中的电压的方法，其中所述静电除尘器具有火花率和电压。所述方法包括将一定量的由碳质基底和元素卤素和/或氢卤酸形成的卤化碳质底物注入到静电除尘器上游的含颗粒的气体流中，使得火花率降低约40％或更多和/或使得电压可以比不注入所述卤代碳质基材时提高大约20％或更多。

6. 发明授权

US4664703A Method for suppressing fuming in molten steel 失效
标题翻译：钢液中发烟的抑制方法
公开(公告)号：US4664703A
公开(公告)日：1987-05-12
申请号：US871885
申请日：1986-06-09
申请人： Ronald R. Landreth
发明人： Ronald R. Landreth
IPC分类号： C21C5/28 , C21C5/38 , C21C7/00 , C22C33/08
CPC分类号： C21C5/28 , C21C5/38 , C21C7/00 , Y02P10/143
摘要： Techniques for suppressing fumes from a bath of molten steel containing fume-generating, alloying ingredients comprising bismuth, lead, manganese and aluminum. The techniques employ natural gas to combust oxygen immediately above the bath, and certain controls are exercised to optimize fume suppression.

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