Use of Metal Oxide-Modified Aerated Concrete for Cleaning Flue Gases from Carbon Monoxide
| Autor: | Tatyana Shabliy, Peter E. Strizhak, Nikolai Gomelya, Olena Ivanenko, Inna Trus, Serhii Leleka, Yuliia Nosachova, A. I. Trypolskyi |
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| Rok vydání: | 2021 |
| Předmět: |
Flue gas
Materials science purification oxidation Oxide Environmental technology. Sanitary engineering carbon monoxide Catalysis Environmental sciences Metal chemistry.chemical_compound chemistry Chemical engineering visual_art flue gases visual_art.visual_art_medium GE1-350 conversion Aeration TD1-1066 Ecology Evolution Behavior and Systematics catalyst General Environmental Science Carbon monoxide |
| Zdroj: | Journal of Ecological Engineering, Vol 22, Iss 5, Pp 104-113 (2021) |
| ISSN: | 2299-8993 |
| Popis: | The necessity of development of technical solutions that will allow to reduce carbon monoxide emissions of flue gases of industrial productions is substantiated. It is shown that the most rational design solution to the problem of carbon monoxide pollution during the firing of electrode blanks is the use of aerated concrete blocks with a catalyst, which can be quickly and conveniently located directly on the carbon material of the "green" electrodes pouring in the subfloor space of the firing furnaces. Modified by oxides of Mn4+, Fe2+, Fe3+, Cu2+, Cr3+ -catalysts based on aerated concrete were obtained. It is shown that in an empty reactor in the temperature range 200 – 400 ºС the degree of conversion of carbon monoxide in the absence of a catalyst is zero. It is established that on the investigated catalysts based on aerated concrete 100% oxidation of carbon monoxide is achieved at a temperature of 390 ºC in the case of using a mixture of catalyst powders 30 % CuO + 70 % MnO2, 40 % CuO + 60 % MnO2, 50 % Fe (FexCr1-x) 2O4 + 50 % MnO2; 50 % Fe3O4 + 50 % MnO2. It is determined that the addition of ferrite catalyst powder in aerated concrete in a mixture or without manganese dioxide does not critically affect the mechanical properties of the products. |
| Databáze: | OpenAIRE |
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