发明名称 |
VERFAHREN ZUR BESEITIGUNG VON NOX UND N2O AUS DEM RESTGAS DER SALPETERSÄUREPRODUKTION |
摘要 |
<p>Purifying residual gas from nitric acid production uses iron zeolite catalyst for decomposing dinitrogen monoxide after reduction of other nitrogen oxides to specified ratio. In a process for reducing the nitrogen oxide (NO x) and dinitrogen monoxide (N 2O) content of residual gas (I) from nitric acid production, (I) leaving the absorption tower, before entering the (I) turbine, passes through a combination of 2 stages, for reducing (1) the NO x and (2) the N 2O content. The NO x/N 2O ratio is 0.001-0.5 before the gas enters stage (2), in which (I) is contacted with a catalyst based on zeolite(s) charged with iron.</p> |
申请公布号 |
AT286775(T) |
申请公布日期 |
2005.01.15 |
申请号 |
AT20010942327T |
申请日期 |
2001.01.09 |
申请人 |
UHDE GMBH |
发明人 |
SCHWEFER, MEINHARD;MAURER, RAINER;TUREK, THOMAS;KOEGEL, MARKUS |
分类号 |
B01D53/86;B01J29/06;B01J29/072;C01B21/40;(IPC1-7):B01D53/86 |
主分类号 |
B01D53/86 |
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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