Performance of Combined Manganese–Silicon Oxygen Carriers and Effects of Including Titanium
| Autor: | Tobias Mattisson, Malin Hanning, Anders Lyngfelt, Magnus Rydén, Volkmar Frick |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
020209 energy
General Chemical Engineering Inorganic chemistry technology industry and agriculture Oxide Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology equipment and supplies Combustion 7. Clean energy Oxygen Methane chemistry.chemical_compound Fuel Technology chemistry 0202 electrical engineering electronic engineering information engineering Char Inert gas Syngas Titanium |
| Zdroj: | Energy & Fuels. |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.5b02061 |
| Popis: | Combined oxides of manganese and silicon were previously identified as suitable oxygen carriers for chemical-looping combustion. In this study, one pure manganese–silicon oxide and one similar material with titanium included in the formulation were examined as oxygen carriers. Experiments studying the oxygen release and the reactivity with syngas, methane, and wood char were carried out in a bench-scale circulating chemical-looping combustor and in a batch fluidized-bed reactor in the temperature range of 800–1050 °C. Both oxygen carriers released oxygen in inert atmosphere, and the concentration of oxygen released increased with temperature. The conversion of syngas and methane also increased with temperature for both materials and in both experimental setups. The reactivity with devolatilized wood char showed that the rate of oxygen uncoupling increased with temperature. However, it was concluded that the main fuel conversion mechanism was CLC and not CLOU for these materials. The inclusion of titanium ... |
| Databáze: | OpenAIRE |
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