基本信息:
- 专利标题： A PROCESS FOR THE REMOVAL OF NOx AND DINITROGEN OXIDE IN PROCESS OFF-GAS
- 申请号：PCT/EP2021/058101 申请日：2021-03-29
- 公开(公告)号：WO2021198150A1 公开(公告)日：2021-10-07
- 发明人： MÜNSTER-SWENDSEN, Janus Emil
- 申请人： HALDOR TOPSØE A/S
- 申请人地址： Haldor Topsøes Allé 1
- 专利权人： HALDOR TOPSØE A/S
- 当前专利权人： HALDOR TOPSØE A/S
- 当前专利权人地址： Haldor Topsøes Allé 1
- 优先权： DKPA 2020 00371 2020-04-01
- 主分类号： B01D53/86
- IPC分类号： B01D53/86 ; B01J23/00 ; B01J23/75 ; B01J23/78 ; B01J29/76 ; B01D2251/206 ; B01D2255/2022 ; B01D2255/2027 ; B01D2255/20738 ; B01D2255/20746 ; B01D2255/502 ; B01D2255/9032 ; B01D2257/402 ; B01D2257/404 ; B01D2257/406 ; B01D53/8628 ; B01D53/8634 ; B01J23/005 ; B01J29/7615
摘要：
:Process for the removal of NOx (NO, NO2) and nitrous oxide (N2O) contained in a process off-gas comprising the steps of (a) adding an amount of a NOx reducing agent into the process off-gas;(b) in a first stage passing the process off-gas admixed with the reducing agent through a catalyst active in selective catalytic reduction of NOx with the reducing agent and providing an effluent gas comprising the nitrous oxide and residual amounts of reducing agent; and(c) in a second stage passing the effluent gas through a catalyst comprising a cobalt compound and being active in decomposition of nitrous oxide and oxidation of the residual amounts of the reducing agent.