High-Pressure Chemical-Looping of Methane and Synthesis Gas with Ni and Cu Oxygen Carriers
| Autor: | George M. Bollas, Zhiquan Zhou, Lu Han, Oscar Nordness |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Atmospheric pressure
urogenital system 020209 energy General Chemical Engineering Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Combustion Oxygen Isothermal process Methane chemistry.chemical_compound Fuel Technology Chemical engineering chemistry 0202 electrical engineering electronic engineering information engineering Chemical looping combustion Syngas Bar (unit) |
| Zdroj: | Energy & Fuels. 30:504-514 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.5b01986 |
| Popis: | This paper presents an experimental study of high-pressure chemical-looping combustion (CLC) of methane and synthesis gas using supported Cu and Ni oxygen carriers. The experiments were performed in an isothermal, fixed-bed reactor at the pressure range of 1–10 bar. The analysis showed that at elevated pressures, the reactivity of the CLC oxygen carriers deviates from that at atmospheric pressure. Formation of solid carbon was found favorable at high pressures for both oxygen carriers, though more extensively with Cu materials. An empirical kinetic model was used to capture the effect of pressure on the reduction and oxidation reactions. The objective of this work is to derive a kinetic model that can accurately capture the idiosyncrasies of high-pressure CLC, which can guide process design studies of CLC integration into power plants. |
| Databáze: | OpenAIRE |
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