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公开(公告)号：US07628969B2
公开(公告)日：2009-12-08
申请号：US12177771
申请日：2008-07-22
申请人： Michael J. Holmes , John H. Pavlish , Ye Zhuang , Steven A. Benson , Edwin S. Olson , Jason D. Laumb
发明人： Michael J. Holmes , John H. Pavlish , Ye Zhuang , Steven A. Benson , Edwin S. Olson , Jason D. Laumb
CPC分类号： B01D53/64 , B01D53/505 , B01D2251/304 , B01D2251/402 , B01D2251/404 , B01D2257/602 , Y02A50/2357 , Y02P20/129
摘要： An apparatus and a method that uses generated alkaline, alkaline-earth, and/or silica/alumina aerosols as a multifunctional additive to scavenge sulfur oxides in flue gas, minimize poisoning effects of sulfur oxides on mercury sorbent performance, and enhance particulate matter capture in electrostatic precipitators and other particulate filter devices by conditioning the fly ash.
摘要翻译： 使用生成的碱性，碱土金属和/或二氧化硅/氧化铝气溶胶作为多功能添加剂以清除烟道气中的硫氧化物的装置和方法，使硫氧化物对汞吸附剂性能的中毒作用最小化，并增强颗粒物质捕获 静电除尘器和其他微粒过滤装置通过调节飞灰。
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公开(公告)号：US20100018395A1
公开(公告)日：2010-01-28
申请号：US12507168
申请日：2009-07-22
CPC分类号： B01D53/10 , B01D2253/102 , B01D2257/602 , F23J15/003 , F23J2215/60 , F23J2219/30 , F23J2219/60
摘要： The present invention relates to use of carbon-based sorbents such as activated carbon for controlling vapor phase mercury emissions in coal-fired power plant flue gases or waste incineration flue gases. The invention features new methods that improve the performance of carbonaceous sorbents for mercury control compared to the previous methods. One method consists of injecting the sorbent (consisting of at least some carbonaceous material) into the flue gas where the flue gas temperature is at a value above about 1100° F. and below about 2000° F. The invention also consists of injecting the sorbent within or upstream of an economizer section in a coal-fired power boiler. Injecting the sorbent at the locations indicated above, rather than further downstream, provides increased residence time for contact between the flue gas and the sorbent resulting in increased mercury capture, improved sorbent utilization, and improved fly ash properties.
摘要翻译： 本发明涉及使用碳基吸附剂如活性炭来控制燃煤电厂废气或废物焚烧烟气中的气相汞排放。 本发明的特征在于，与先前的方法相比，改进了用于汞控制的碳质吸附剂的性能的新方法。 一种方法包括将吸附剂（由至少一些含碳材料组成）注入到烟道气中，其中烟道气体温度高于约1100°F并低于约2000°F。本发明还包括将吸附剂 在燃煤电力锅炉的节能器部分内或上游。 在上述位置注入吸附剂，而不是进一步下游，为烟道气和吸附剂之间的接触提供了更长的停留时间，从而导致汞捕获量增加，吸附剂利用率提高，飞灰性能得到改善。
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公开(公告)号：US08277542B2
公开(公告)日：2012-10-02
申请号：US12507168
申请日：2009-07-22
IPC分类号： B01D53/02
CPC分类号： B01D53/10 , B01D2253/102 , B01D2257/602 , F23J15/003 , F23J2215/60 , F23J2219/30 , F23J2219/60
摘要： The present invention relates to use of carbon-based sorbents such as activated carbon for controlling vapor phase mercury emissions in coal-fired power plant flue gases or waste incineration flue gases. The invention features new methods that improve the performance of carbonaceous sorbents for mercury control compared to the previous methods. One method consists of injecting the sorbent (consisting of at least some carbonaceous material) into the flue gas where the flue gas temperature is at a value above about 1100° F. and below about 2000° F. The invention also consists of injecting the sorbent within or upstream of an economizer section in a coal-fired power boiler. Injecting the sorbent at the locations indicated above, rather than further downstream, provides increased residence time for contact between the flue gas and the sorbent resulting in increased mercury capture, improved sorbent utilization, and improved fly ash properties.
摘要翻译： 本发明涉及使用碳基吸附剂如活性炭来控制燃煤电厂废气或废物焚烧烟气中的气相汞排放。 本发明的特征在于，与先前的方法相比，改进了用于汞控制的碳质吸附剂的性能的新方法。 一种方法包括将吸附剂（由至少一些含碳材料组成）注入到烟道气中，其中烟道气体温度高于约1100°F并低于约2000°F。本发明还包括将吸附剂 在燃煤电力锅炉的节能器部分内或上游。 在上述位置注入吸附剂，而不是进一步下游，为烟道气和吸附剂之间的接触提供了更长的停留时间，从而导致汞捕获量增加，吸附剂利用率提高，飞灰性能得到改善。
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