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1. 发明公开

EP0406570A2 Conditioning of gas streams containing particulate for electrostatic precipitation 失效
标题翻译： GasströmeKonditionierverfahrenfürstaubhaltige
公开(公告)号：EP0406570A2
公开(公告)日：1991-01-09
申请号：EP90110547.8
申请日：1990-06-02
申请人： WAHLCO, INC.
发明人： Krigmont, Henry V. , Coe, Everett L., Jr.
IPC分类号： B03C3/01
CPC分类号： B03C3/013
摘要： Effluent gas streams from power plants, or other sources, containing entrained particulate matter are conditioned by injecting a conditioning gas such as sulfur trioxide into the flowing gase stream (20). The conditioning gas contained in the source of gas (32) is deposited upon the surface of the particulate and reduces its electrical resistivity, improving the performance of electrostativ precipitators (38) through which the flowing gas (58) is passed to precipitate the particulate. At the point of injection (34), an electrostatic potential (40,46) is established between the particulate in the flowing gas stream (20) and the conditioning gas molecules, so that the conditioning gas is attracted to the particulate. Interaction of the conditioning gas with the particulate is stronger and more rapid than in the absence of the electrostatic potential (40,46) at the point of injection (34).
摘要翻译：通过将诸如三氧化硫的调节气体注入到流动的气体流（20）中来调节含有夹带的颗粒物质的来自发电厂或其它来源的流出气流。包含在气体源32中的调节气体沉积在颗粒表面上并降低其电阻率，从而改善静电除尘器38的性能，通过该静电沉淀器通过流动的气体（58）以沉淀颗粒物。在注入点（34）处，在流动气体流（20）中的颗粒与调节气体分子之间建立静电电位（40,46），使得调节气体被吸引到颗粒物上。调节气体与颗粒的相互作用比在注射点（34）不存在静电势（40,46）时更为强烈和更快速。

2. 发明授权

EP0401724B1 Measurement of electrical resistivity of particulate entrained in a gas stream 失效
标题翻译：测量由气流输送颗粒的电阻。
公开(公告)号：EP0401724B1
公开(公告)日：1995-02-22
申请号：EP90110548.6
申请日：1990-06-02
申请人： WAHLCO, INC.
发明人： Krigmont, Henry V. , Coe, Everett L., Jr.
IPC分类号： G01N27/04 , G01N15/00
CPC分类号： G01N27/043 , G01N27/07

3. 发明公开

EP0406570A3 Conditioning of gas streams containing particulate for electrostatic precipitation 失效
标题翻译：含静电沉淀颗粒物的气体条件调节
公开(公告)号：EP0406570A3
公开(公告)日：1991-11-06
申请号：EP90110547.8
申请日：1990-06-02
申请人： WAHLCO, INC.
发明人： Krigmont, Henry V. , Coe, Everett L., Jr.
IPC分类号： B03C3/01
CPC分类号： B03C3/013
摘要： Effluent gas streams from power plants, or other sources, containing entrained particulate matter are conditioned by injecting a conditioning gas such as sulfur trioxide into the flowing gase stream (20). The conditioning gas contained in the source of gas (32) is deposited upon the surface of the particulate and reduces its electrical resistivity, improving the performance of electrostativ precipitators (38) through which the flowing gas (58) is passed to precipitate the particulate. At the point of injection (34), an electrostatic potential (40,46) is established between the particulate in the flowing gas stream (20) and the conditioning gas molecules, so that the conditioning gas is attracted to the particulate. Interaction of the conditioning gas with the particulate is stronger and more rapid than in the absence of the electrostatic potential (40,46) at the point of injection (34).

4. 发明公开

EP3152163A4 UREA TO AMMONIA PROCESS 审中-公开
公开(公告)号：EP3152163A4
公开(公告)日：2017-12-27
申请号：EP15806122
申请日：2015-05-28
申请人： WAHLCO INC
发明人： FUJITA MADOKA , HANKINS WILLIAM G , ANDERSON PETER PAUL
IPC分类号： C01C1/08
CPC分类号： C01C1/086 , B01D53/56 , B01J12/00 , B01J2203/0655 , B01J2219/00078 , B01J2219/00081 , B01J2219/00083 , B01J2219/00085
摘要： Methods and systems for producing a pressurized ammonia-containing gas stream from aqueous urea. The method comprising pumping an aqueous urea-containing solution to a fluid-tight enclosure at a rate to match the external demand for ammonia-gas, wherein a fluid heat transfer medium is applied to the exterior of the fluid-tight enclosure to transfer heat to the aqueous urea-containing solution sufficient to hydrolyze the solution to an ammonia gaseous product. The systems comprise means for carrying out the methods.

5. 发明授权

EP0457225B1 Control of addition of conditioning agents to flue gas 失效
标题翻译：控制废气加入调理剂。
公开(公告)号：EP0457225B1
公开(公告)日：1995-09-06
申请号：EP91107684.2
申请日：1991-05-11
申请人： WAHLCO, INC.
发明人： Krigmont, Henry V. , Coe, Everett L., Jr. , Southam, Barry J.
IPC分类号： B03C3/01 , B01D51/10 , F23J15/00
CPC分类号： F23J15/02 , B01D53/346 , B03C3/013 , Y10S55/30

6. 发明公开

EP0457225A1 Control of addition of conditioning agents to flue gas 失效
标题翻译： Abgasen的Regelung der Zugabe von Konditionierungsmitteln。
公开(公告)号：EP0457225A1
公开(公告)日：1991-11-21
申请号：EP91107684.2
申请日：1991-05-11
申请人： WAHLCO, INC.
发明人： Krigmont, Henry V. , Coe, Everett L., Jr. , Southam, Barry J.
IPC分类号： B03C3/01 , B01D51/10 , F23J15/00
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.
摘要翻译：通过从燃烧和气体净化系统中的传感器接收的前馈和反馈信号以及可选地从静电除尘器的功率消耗水平来操作的控制器来控制对含微粒的烟道气流的调节剂的添加。因此，调节剂如三氧化硫和氨的流量平衡，以在气体排放到大气之前实现颗粒物质以及硫和硫化合物从气流中的最佳去除。典型的前馈信号是锅炉负载，典型的反馈信号包括残留的三氧化硫和氨水平以及堆叠气体不透明度。

7. 发明公开

EP0457224A1 Removal of particulate matter from combustion gas streams 失效
标题翻译： Abscheiden von Teilchen ausVerbrennungsgasströmen。
公开(公告)号：EP0457224A1
公开(公告)日：1991-11-21
申请号：EP91107683.4
申请日：1991-05-11
申请人： WAHLCO, INC.
发明人： Krigmont, Henry V. , Coe, Everett L., Jr.
IPC分类号： B03C3/01 , B01D51/10
CPC分类号： F23J15/02 , B03C3/013 , B03C3/68
摘要： Unburned particulate matter is removed from a combustion gas stream by adding a conditioning agent to modify the resistivity of the particulate matter and passing the conditioned combustion gas stream through an electrostatic precipitator whose precipitating elements are energized with an intermittent applied voltage. The addition of conditioning agent and the precipitating voltage signal are mutually optimized. A controller receives measurement signals from sensors that monitor the total flow rate of particulate matter in the gas stream before the electrostatic precipitation treatment, and the concentration of particulate matter in the gas stream after the treatment. Performance of the system may be optimized according to selected combinations of variables.
摘要翻译：通过添加调节剂以改变颗粒物质的电阻率并使调节的燃烧气体流通过其沉淀元件以间歇施加的电压通电的静电除尘器，从燃烧气流中除去未燃烧的颗粒物质。调节剂的添加和沉淀电压信号相互优化。控制器接收来自传感器的测量信号，该传感器监测在静电沉淀处理之前的气流中的颗粒物质的总流量，以及处理后气流中颗粒物质的浓度。可以根据选定的变量组合来优化系统的性能。

8. 发明公开

EP3152163A1 UREA TO AMMONIA PROCESS 审中-公开
标题翻译： HARNSTOFF-ZU-AMMONIAK-VERFAHREN
公开(公告)号：EP3152163A1
公开(公告)日：2017-04-12
申请号：EP15806122.6
申请日：2015-05-28
申请人： Wahlco, Inc.
发明人： FUJITA, Madoka , HANKINS, William, G. , ANDERSON, Peter, Paul
IPC分类号： C01C1/08
CPC分类号： C01C1/086 , B01D53/56 , B01J12/00 , B01J2203/0655 , B01J2219/00078 , B01J2219/00081 , B01J2219/00083 , B01J2219/00085
摘要： Methods and systems for producing a pressurized ammonia-containing gas stream from aqueous urea. The method comprising pumping an aqueous urea-containing solution to a fluid-tight enclosure at a rate to match the external demand for ammonia-gas, wherein a fluid heat transfer medium is applied to the exterior of the fluid-tight enclosure to transfer heat to the aqueous urea-containing solution sufficient to hydrolyze the solution to an ammonia gaseous product. The systems comprise means for carrying out the methods.
摘要翻译：用于从含水尿素生产加压含氨气流的方法和系统。该方法包括以符合氨气的外部需求的速率将含尿素水溶液泵送到流体密封外壳，其中将流体传热介质施加到流体密封外壳的外部以将热传递到含水的含尿素溶液足以将溶液水解成氨气体产物。该系统包括用于执行该方法的装置。

9. 发明公开

EP0723804A1 Catalytic sulfur trioxide flue gas conditioning 失效
标题翻译： Katalytische Schwefeltrioxid-Abgas-Konditionierung
公开(公告)号：EP0723804A1
公开(公告)日：1996-07-31
申请号：EP96100691.3
申请日：1996-01-18
申请人： WAHLCO, INC.
发明人： Spokoyny, Felix E., c/o Wahlco, Inc. , Middleton, Vincent F., c/o Wahlco, Inc.
IPC分类号： B01D53/86 , B03C3/013 , F23J15/00
CPC分类号： F23J3/00 , B01D53/8609 , B03C3/013 , F23J15/00 , F23J2217/102
摘要： A method and apparatus for the selective control of the sulfur trioxide concentration in flue gases, to enhance the ash removal efficiency of electrostatic precipitators, which includes: catalytically converting a portion of the sulfur dioxide contained within the flue gas to sulfur trioxide, by passing a portion of such flue gas through at least one catalyst containing converter module which is positioned within such a flue gas stream; and selectively varying the quantity of flue gas passing through such module by providing an aspirating force to cause flue gas to be drawn through such a converter module.
摘要翻译：用于选择性地控制烟道气中三氧化硫浓度的方法和装置，以提高静电除尘器的灰分去除效率，其包括：将烟道气中所含的二氧化硫的一部分催化转化为三氧化硫，这种烟气的一部分通过至少一个位于这种烟气流中的含催化剂的转化器模块; 并且通过提供抽吸力来选择性地改变通过这种模块的烟道气的量，以使烟道气被抽出通过这样的转换器模块。

10. 发明公开

EP0450357A1 Control system for flue gas conditioning 失效
标题翻译： Regelungssystem zur Rauchgaskonditionierung。
公开(公告)号：EP0450357A1
公开(公告)日：1991-10-09
申请号：EP91103878.4
申请日：1991-03-14
申请人： WAHLCO, INC.
发明人： Krogmont, Henry V. , Coe, Everett L., Jr. , Herbert, Daniel A. , Kozacka, Wayne R.
IPC分类号： B03C3/01 , B01D51/10
CPC分类号： B03C3/013 , B01D51/10
摘要： The volumetric flow rate for the addition of a flue gas conditioning agent, such as sulfur trioxide, is established by maintaining the derivative of the electrostatic precipitator power with respect to flow rate within a preselected operating range. The derivative of the precipitator power with respect to time and the derivative of the flow rate with respect to time are measured, and then the derivatives are divided to determine the derivative of precipitator power with respect to flow rate. This calculated value is compared with a preselected operating range. If the calculated value is greater than the preselected operating range, the flow rate of the conditioning agent is increased. If the calculated value is less than the preselected operating range, the flow rate is reduced, until a steady state calculated derivative value within the operating range is reached.
摘要翻译：通过将静电除尘器功率的导数保持在预选的工作范围内的流量来建立用于添加烟道气调节剂如三氧化硫的体积流量。测量相对于时间的除尘器功率的导数和流量相对于时间的导数，然后将导数除以确定除尘器功率相对于流量的导数。将该计算值与预选的工作范围进行比较。如果计算值大于预选的工作范围，调节剂的流量就会增加。如果计算值小于预选的工作范围，则流量降低，直到达到运行范围内计算的导数值的稳态。

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