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1.发明授权In-line localized monitoring of catalyst activity in selective catalytic NOx reduction systems 失效选择性催化NOx还原系统中催化剂活性的在线局部监测公开(公告)号：US07635593B2
公开(公告)日：2009-12-22
申请号：US11112667
申请日：2005-04-21
CPC分类号： G01N1/22 , B01D53/8696 , B01D53/90 , Y10T436/17 , Y10T436/175383 , Y10T436/177692 , Y10T436/178459 , Y10T436/179228 , Y10T436/20 , Y10T436/207497
摘要： Localized catalyst activity in an SCR unit for controlling emissions from a boiler, power plant, or any facility that generates NOx-containing flue gases is monitored by one or more modules that operate on-line without disrupting the normal operation of the facility. Each module is positioned over a designated lateral area of one of the catalyst beds in the SCR unit, and supplies ammonia, urea, or other suitable reductant to the catalyst in the designated area at a rate that produces an excess of the reductant over NOx on a molar basis through the designated area. Sampling probes upstream and downstream of the designated area draw samples of the gas stream for NOx analysis, and the catalyst activity is determined from the difference in NOx levels between the two probes.
摘要翻译： 用于控制来自锅炉，发电厂或产生含有NOx的烟道气的任何设备的SCR单元中的局部催化剂活性由在线操作的一个或多个模块监测，而不中断设施的正常运行。 每个模块位于SCR单元中的一个催化剂床的指定横向区域上，并且以指定区域中的催化剂的速率将氨，尿素或其他合适的还原剂以超过NO x的过剩还原剂的速率供应到 通过指定区域的摩尔数。 在指定区域的上游和下游的取样探针抽取用于NOx分析的气流的样品，并且根据两个探针之间的NOx水平的差来确定催化剂活性。
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2.发明申请In-line localized monitoring of catalyst activity in selective catalytic NOx reduction systems 失效选择性催化NOx还原系统中催化剂活性的在线局部监测公开(公告)号：US20050255605A1
公开(公告)日：2005-11-17
申请号：US11112667
申请日：2005-04-21
申请人： Lawrence Muzio , Randall Smith
发明人： Lawrence Muzio , Randall Smith
CPC分类号： G01N1/22 , B01D53/8696 , B01D53/90 , Y10T436/17 , Y10T436/175383 , Y10T436/177692 , Y10T436/178459 , Y10T436/179228 , Y10T436/20 , Y10T436/207497
摘要： Localized catalyst activity in an SCR unit for controlling emissions from a boiler, power plant, or any facility that generates NOx-containing flue gases is monitored by one or more modules that operate on-line without disrupting the normal operation of the facility. Each module is positioned over a designated lateral area of one of the catalyst beds in the SCR unit, and supplies ammonia, urea, or other suitable reductant to the catalyst in the designated area at a rate that produces an excess of the reductant over NOx on a molar basis through the designated area. Sampling probes upstream and downstream of the designated area draw samples of the gas stream for NOx analysis, and the catalyst activity is determined from the difference in NOx levels between the two probes.
摘要翻译： 用于控制来自锅炉，发电厂或任何产生不含含烟气的任何设施的SCR单元中的局部催化剂活性由一个或多个在线运行的模块监测，而不会中断 设施的正常运行。 每个模块位于SCR单元中的一个催化剂床的指定横向区域上方，并以指定区域内的催化剂以超过NO 2的产生过量的还原剂的速率供应氨，尿素或其它合适的还原剂， 通过指定区域以摩尔计。 在指定区域的上游和下游的取样探针抽取气体流的样品用于NO x分析，并且催化剂活性是根据两者之间的NO
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3.发明申请In-Line Localized Monitoring of Catalyst Activity in Selective Catalytic NOx Reduction Systems 审中-公开在选择性催化NOx还原系统中在线定位监测催化剂活性公开(公告)号：US20090305425A1
公开(公告)日：2009-12-10
申请号：US12500672
申请日：2009-07-10
IPC分类号： G01N31/00
CPC分类号： G01N1/22 , B01D53/8696 , B01D53/90 , Y10T436/17 , Y10T436/175383 , Y10T436/177692 , Y10T436/178459 , Y10T436/179228 , Y10T436/20 , Y10T436/207497
摘要： Localized catalyst activity in an SCR unit for controlling emissions from a boiler, power plant, or any facility that generates NOx-containing flue gases is monitored by one or more modules that operate on-line without disrupting the normal operation of the facility. Each module is positioned over a designated lateral area of one of the catalyst beds in the SCR unit, and supplies ammonia, urea, or other suitable reductant to the catalyst in the designated area at a rate that produces an excess of the reductant over NOx on a molar basis through the designated area. Sampling probes upstream and downstream of the designated area draw samples of the gas stream for NOx analysis, and the catalyst activity is determined from the difference in NOx levels between the two probes.
摘要翻译： 用于控制来自锅炉，发电厂或产生含有NOx的烟道气的任何设备的SCR单元中的局部催化剂活性由在线操作的一个或多个模块监测，而不中断设施的正常运行。 每个模块位于SCR单元中的一个催化剂床的指定横向区域上，并且以指定区域中的催化剂的速率将氨，尿素或其他合适的还原剂以超过NO x的过剩还原剂的速率供应到 通过指定区域的摩尔数。 在指定区域的上游和下游的取样探针抽取用于NOx分析的气流的样品，并且根据两个探针之间的NOx水平的差来确定催化剂活性。
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