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1. 发明申请

US20030124041A1 Process for removing nitrogen oxides from gases 审中-公开
标题翻译：从气体中除去氮氧化物的方法
公开(公告)号：US20030124041A1
公开(公告)日：2003-07-03
申请号：US10326970
申请日：2002-12-24
申请人： Linde Aktiengesellschaft
发明人： Hartmut Neumann , Ulrike Wenning
IPC分类号： C01B021/00
CPC分类号： B01D53/565
摘要： The invention relates to a process for removing nitrogen oxides from a fluid, the fluid being the feed air or a product or product mixture or a process fluid of an air separation plant. According to the invention, the nitrogen oxides are removed by chemisorption on metal oxides. The metal oxides are preferably formed from metals of the 6th to 8th subgroup, manganese dioxide (MnO2) being particularly preferred as the metal oxide. The process can comprise one or more reactor beds, which are preferably operated at 10 to 40null C. and are regenerated with nitrogen at a temperature from 130 to 170null C. The process can be used for the recovery of gases of extreme purity, for example for the manufacture of semiconductors.
摘要翻译：本发明涉及从流体中除去氮氧化物的方法，流体是进料空气或空气分离设备的产物或产物混合物或工艺流体。根据本发明，通过金属氧化物上的化学吸附除去氮氧化物。金属氧化物优选由第6〜8族的金属形成，特别优选作为金属氧化物的二氧化锰（MnO 2）。该方法可以包括一个或多个反应器床，其优选在10至40℃下操作，并在130-170℃的温度下用氮气再生。该方法可用于回收极端纯度的气体，例如用于制造半导体。

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