发明名称 |
EXHAUST GAS PURIFYING METHOD AND APPARATUS |
摘要 |
A system is provided that prevents inhibition of adsorption of Hg and other heavy metals by activated carbon or other heavy metal adsorbent due to prior adsorption of sulfur trioxide (SO3) in an exhaust gas containing SO3. As it has been found that while SO3 is adsorbed, the adsorption of SO3 precedes the adsorption of Hg and other heavy metals onto activated carbon, a basic substance injection system is disposed along an exhaust gas flow channel at an upstream side of an activated carbon injection system, thereby attaining effective removal of Hg and other heavy metals from the exhaust gas by adsorption thereof onto surface pores of the activated carbon. The SO3 concentration after removal by basic substance conversion is computed from the SO3 concentration before removal, and the activated carbon injection rate can be controlled based on the concentration after removal.
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申请公布号 |
US2010116126(A1) |
申请公布日期 |
2010.05.13 |
申请号 |
US20080531603 |
申请日期 |
2008.04.11 |
申请人 |
BABCOCK-HITACHI KABUSHIKI KAISHA |
发明人 |
SHIMAMURA JUN;NAKAMOTO TAKANORI;KATSUBE TOSHIO;KIKKAWA HIROFUMI;NOSAKA HIROYUKI;SAITOU TAKAYUKI;TAGUCHI YOSHINORI;ISHIZAKA HIROSHI |
分类号 |
B03C3/68;B03C3/00;B03C3/04;B03C3/16 |
主分类号 |
B03C3/68 |
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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