发明名称 |
Method of reducing nitrogen oxide emissions in a chemical pulp mill |
摘要 |
The present invention relates to recovery of ammonia from ammonia-containing material flows in a chemical pulp mill for decreasing nitrogen oxide emissions of the mill. When practicing this method, the ammonia-containing material flow originating from steam stripping of condensates is adjusted by means of alkali to a value of over 10 and is made into contact with steam for separating ammonia from the material flow. The recovered ammonia is used as a chemical in a combustion device in the chemical pulp mill in a way known per se to reduce detrimental nitrogen oxide emissions of the mill. <IMAGE>
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申请公布号 |
EP1424435(A2) |
申请公布日期 |
2004.06.02 |
申请号 |
EP20030396102 |
申请日期 |
2003.11.14 |
申请人 |
ANDRITZ OY |
发明人 |
SAVIHARJU, KARI;ENEBERG, HENRIK;JAAKKOLA, HEIKKI;LAMMENTAUSTA, SAKARI;MATTELMAEKI, ESKO;SCHOENBERG, AKE;HONKANEN, RISTO |
分类号 |
B01D3/38;B01D53/56;B01D53/58;B01D53/86;D21C11/06;D21C11/12;(IPC1-7):D21C11/06;B01D3/34 |
主分类号 |
B01D3/38 |
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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