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1. 发明公开

EP2898938A1 Mercury re-emission control 失效转让
标题翻译： KONTROLLE DER RE-EMISSION VON QUECKSILBER
公开(公告)号：EP2898938A1
公开(公告)日：2015-07-29
申请号：EP14199490.5
申请日：2014-12-19
申请人： ALSTOM Technology Ltd
发明人： Czarnecki, Lawrence Joseph
IPC分类号： B01D53/30 , B01D53/48 , B01D53/64 , B01D53/78 , F23J15/04 , B01D53/34 , B01D53/50 , C08B37/16
CPC分类号： B01D53/64 , B01D53/30 , B01D53/346 , B01D53/48 , B01D53/501 , B01D53/78 , B01D2251/404 , B01D2252/60 , B01D2257/602 , B01D2258/0283 , C08B37/0015 , F23J15/003 , F23J15/04 , F23J2215/50 , F23J2215/60 , F23J2219/20 , F23J2219/40 , F23J2219/50 , Y02E20/326
摘要： A method for reducing mercury emission and/or re-emission in cleaned flue gas through control of dissolved mercury species concentration within a wet flue gas desulfurization (WFGD) system (18) is disclosed. One method for reducing mercury emission and/or re-emission through control of dissolved mercury species concentration is to measure the dissolved mercury species concentration of an aqueous alkaline slurry (24) used in a WFGD system (18) and/or measuring mercury concentration of cleaned flue gas from a WFGD system (18) and comparing the same to a predetermined dissolved mercury species concentration value and/or a predetermined mercury concentration value. If the comparison reveals the measured dissolved mercury species concentration or mercury concentration is above the predetermined values therefor, the amount of cyclodextrin additive (54) supplied to the system (18) is increased. If the comparison reveals the measured dissolved mercury species concentration or mercury concentration is below the predetermined values, the amount of cyclodextrin additive (54) supplied to the system (18) is decreased.
摘要翻译：公开了一种通过控制湿式烟道气脱硫（WFGD）系统（18）中溶解的汞物质浓度来减少净化烟道气中的汞排放和/或再排放的方法。通过控制溶解的汞物质浓度来减少汞排放和/或再排放的一种方法是测量WFGD系统（18）中使用的碱性水溶液（24）的溶解汞物质浓度和/或测量汞浓度将来自WFGD系统（18）的烟道气净化并将其与预定的溶解汞物质浓度值和/或预定汞浓度值进行比较。如果比较显示测得的溶解汞物质浓度或汞浓度高于其预定值，则提供给系统（18）的环糊精添加剂（54）的量增加。如果比较显示测得的溶解汞物质浓度或汞浓度低于预定值，则提供给系统（18）的环糊精添加剂（54）的量减少。

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