发明名称 |
Method and apparatus for treating exhaust gas |
摘要 |
In an exhaust gas treatment, the amount of a highly corrosive mercury-halogenating agent to be added is reduced with the mercury-removing efficiency maintained high. A mercury-halogenating agent (40) and ammonia (30) are added to combustion exhaust gas from a boiler, the exhaust gas containing NOx, SOx and mercury. The exhaust gas is brought into contact with a CO/HC oxidation catalyst (50) and is then subjected to reduction denitration (60) in the presence of a solid catalyst. Thereafter, metallic mercury is oxidized to halogenated mercury. Then, the exhaust gas is wet-desulfurized (100) with the alkaline absorbing solution, and the halogenated mercury is removed. |
申请公布号 |
US8420034(B2) |
申请公布日期 |
2013.04.16 |
申请号 |
US20090670871 |
申请日期 |
2009.02.26 |
申请人 |
NOCHI KATSUMI;OBAYASHI YOSHIAKI;KIYOSAWA MASASHI;HONJO SHINTARO;MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
NOCHI KATSUMI;OBAYASHI YOSHIAKI;KIYOSAWA MASASHI;HONJO SHINTARO |
分类号 |
B01D47/00;B01D53/50;C01F1/00;C01G23/00 |
主分类号 |
B01D47/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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