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- Title
MnFe/AlO Catalyst Synthesized by Deposition Precipitation for Low-Temperature Selective Catalytic Reduction of NO with NH.
- Authors
Schill, Leonhard; Putluru, Siva; Jensen, Anker; Fehrmann, Rasmus
- Abstract
Mn-Fe/AlO and Mn-Fe/TiO catalysts have been prepared by impregnation (IMP) and deposition precipitation (DP) and characterized with several techniques including: XRDP, N-physisorption, NH-TPD, H-TPR, TGA and XPS. 40 wt% MnFe/AlO prepared with ammonia carbamate as precipitating agent showed the same superior low temperature selective catalytic reduction of NO with NH as did 25 wt% MnFe/TiO prepared in the same way. Both catalysts were much more active when prepared by DP instead of IMP. 25 wt% MnFe/TiO and 40 wt% MnFe/AlO prepared by DP were exposed to a gas containing 20 vol% HO at temperatures between 140 and 200 °C and compared to an industrial VO-WO/TiO catalyst tested at 220 °C. Both homemade catalysts were severely inhibited by 20 vol% HO. However, used at 180 °C they match the activity of the industrial reference at 220 °C. Graphical Abstract: [Figure not available: see fulltext.]
- Subjects
IRON alloys; ALUMINUM oxide; ALUMINUM catalysts; CHEMICAL synthesis; PRECIPITATION (Chemistry); LOW temperatures; CATALYTIC activity; CHEMICAL reduction
- Publication
Catalysis Letters, 2015, Vol 145, Issue 9, p1724
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-015-1576-6