发明名称 |
DEVICE AND METHOD FOR PROCESSING CEMENT KILN COMBUSTION EXHAUST GAS |
摘要 |
[Subject] Harmful substance such as dust, NOx, persistent organic pollutants, a volatile organic compound and CO in cement kiln combustion exhaust gas is removed efficiently, holding down facility cost and operating cost low. [Means for Solution] A combustion exhaust gas processing device 1 comprises: a dust collector 6 collecting dust in a cement kiln combustion exhaust gas G1; a wet dust collector 7 as a catalyst-poisoning-substance stripper removing a catalyst-poisoning substance from a combustion exhaust gas G2 which passed the dust collector 6; preheaters 10 and 11 heating beforehand a combustion exhaust gas G3 which passed the wet dust collector 7; and a catalyst device 12 from which NOx, a persistent organic pollutant, etc. in the preheated combustion exhaust gas, are removed. A titanium-vanadium catalyst etc. as an oxide catalyst is used upstream of the catalyst device 12, and a platinum catalyst etc. as a noble-metal catalyst downstream of the catalyst device 12. The temperature of the combustion exhaust gas after the catalyst-poisoning substance is removed is increased up to 140°C or more with the preheaters to prevent decline in denitration efficiency of and the decomposition efficiency of a volatile organic compound. |
申请公布号 |
EP1842836(A4) |
申请公布日期 |
2013.12.11 |
申请号 |
EP20050822629 |
申请日期 |
2005.12.27 |
申请人 |
TAIHEIYO CEMENT CORPORATION;NIPPON SHOKUBAI KAGAKU KOGYO CO. LTD. |
发明人 |
SAITO, SHINICHIRO;UCHIYAMA, YASUHIRO;TERASAKI, JUNICHI;KONDO, HISASHI;HAGI, MITSUHARU;MASAKI, NOBUYUKI |
分类号 |
C04B7/60;B01D53/86;C04B7/43;F27B7/20;F27D17/00 |
主分类号 |
C04B7/60 |
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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