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首页> 外文期刊>RSC Advances >Reductive removal of gaseous nitrous oxide by activated carbon with metal oxide catalysts
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Reductive removal of gaseous nitrous oxide by activated carbon with metal oxide catalysts

机译：用金属氧化物催化剂通过活性炭还原去除气态一氧化二氮

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The efficient reductive decomposition of gaseous nitrous oxide (N2O) from industrial effluents is of practical importance in abating greenhouse gas emissions. In the present study, active carbon (AC) has been chosen as both a reductive agent and a catalyst support. Dozens of AC-based catalysts with different kinds and amounts of metal oxide have been prepared under various conditions and characterized. The performances of Cu-containing AC have been studied at varying gas flow rates, Cu contents, and calcination temperatures. N2O in a gas mixture (42% N2O, 58% N2) was found to be completely removed by Cu-loaded AC (9 wt% Cu, calcined at 400 °C) at 325 °C with a GHSV of 2293 h?1. This process is viable by virtue of the low cost of AC and easier manipulation and process control in comparison with alternative methods employing reductive gases such as hydrogen and ammonia.
机译：工业废水中气态一氧化二氮（N 2 O）的有效还原分解对于减少温室气体排放具有重要的现实意义。在本研究中，已选择活性炭（AC）作为还原剂和催化剂载体。已经在各种条件下制备了数十种具有不同种类和数量的金属氧化物的AC基催化剂。已经研究了在不同的气体流量，铜含量和煅烧温度下含铜AC的性能。混合气体中的N 2 O（42％N 2 O，58％N 2 ）被325°C的GHSV为2293 h的载有铜的AC（9 wt％Cu，在400°C下煅烧）完全去除了。 1 。与采用还原性气体（例如氢气和氨气）的替代方法相比，该方法的成本低廉，交流成本低，操作和过程控制更容易。

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