Issue 17, 2017, Issue in Progress

Reductive removal of gaseous nitrous oxide by activated carbon with metal oxide catalysts

Abstract

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.

Graphical abstract: Reductive removal of gaseous nitrous oxide by activated carbon with metal oxide catalysts

Article information

Article type
Paper
Submitted
18 Nov 2016
Accepted
02 Feb 2017
First published
07 Feb 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 10407-10414

Reductive removal of gaseous nitrous oxide by activated carbon with metal oxide catalysts

H. Meng, L. Yuan, J. Gao, N. Ren, Y. Lu and C. Li, RSC Adv., 2017, 7, 10407 DOI: 10.1039/C6RA26983D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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