公开(公告)号：US20090269241A1

公开(公告)日：2009-10-29

申请号：US12459023

申请日：2009-06-25

申请人： Shintaro Honjo ,  Toru Takashina ,  Kozo lida ,  Susumu Okino ,  Yasuhiro Takeuchi

发明人： Shintaro Honjo ,  Toru Takashina ,  Kozo lida ,  Susumu Okino ,  Yasuhiro Takeuchi

IPC分类号： G01N27/10 ,  G01N27/00

CPC分类号： B01D53/501 ,  B01D53/8665 ,  B01D2257/602 ,  F23J15/006 ,  F23J2215/60 ,  F23J2219/40

摘要： The present invention provides a method for removing mercury in exhaust gas, in which mercury in exhaust gas discharged from combustion equipment is removed, characterized by including a mercury oxidation process in which mercury in the exhaust gas is converted to mercury chloride in the presence of a catalyst; a contact process in which the exhaust gas is brought into contact with an absorbing solution in a scrubber to absorb and remove mercury components from the exhaust gas; and a control process in which blowing of air or addition of an oxidizing agent into the scrubber is accomplished, and the amount of blown air or the added amount of oxidizing agent is regulated to control the oxidation-reduction potential of the absorbing agent, and a system for removing mercury in exhaust gas. According to the mercury removing method in accordance with the present invention, a phenomenon that mercury chloride is reduced into metallic mercury by SO2 etc. and the metallic mercury scatters in the exhaust gas can be prevented, and mercury in the exhaust gas can be decreased effectively.

摘要翻译： 本发明提供了一种去除废气中排出的废气中的汞的方法，其中废气中排出的废气中的汞被除去，其特征在于包括一种汞氧化法，其中废气中的汞转化为氯化汞， 催化剂; 接触方法，其中废气与洗涤器中的吸收溶液接触以从废气中吸收和去除汞组分; 以及控制方法，其中完成吹入空气或将氧化剂加入到洗涤器中，并且调节吹入空气量或氧化剂的添加量以控制吸收剂的氧化还原电位，并且 废气中汞去除系统。 根据本发明的水银除去方法，可以防止将二氧化氯还原成金属汞，并且可以防止金属汞在排气中飞散的现象，从而可以有效地降低废气中的汞 。