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Hydrogen and carbon monoxide production by chemical looping over iron-aluminium oxides

(2016) ENERGY TECHNOLOGY. 4(2). p.304-313
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Abstract
H-2 and CO production from H2O and CO2 is investigated experimentally using a two-step chemical looping process based on the redox cycles of iron-alumina mixed oxides. The reduction of Fe3O4 in the first endothermic step is followed by the splitting of CO2 or H2O in a second exothermic step. The iron-aluminum oxides are more reactive with H2O than with CO2 in the range 650-750 degrees C. Insitu XRD shows that deactivation results from different processes: iron oxide sintering and the formation of spinel (FeAl2O4) with a lower oxygen-storage capacity. However, FeAl2O4 assumes the role of Al2O3 and mitigates the iron oxide sintering. Deactivation at 650 degrees C is governed predominantly by sintering, and the further loss of activity is caused by combined sintering and spinel formation. Spinel formation is more dominant at 750 degrees C. A mixed oxide of Fe2O3 and Al2O3 with a mass ratio of 70:30 was the most active and stable for H2O and CO2 splitting in chemical looping.
Keywords
REDOX REACTIONS, WATER, DIOXIDE CAPTURE, SYNGAS PRODUCTION, OXYGEN CARRIER, PEM FUEL-CELLS, GAS SHIFT PROCESS, water splitting, iron, hydrogen, aluminum, energy conversion, CO2, COMBUSTION, REACTOR

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Chicago
Rihko-Struckmann, Liisa K, Pradyot Datta, Marcus Wenzel, Kai Sundmacher, Naga Venkata Ranga Aditya Dharanipragada, Hilde Poelman, Vladimir Galvita, and Guy Marin. 2016. “Hydrogen and Carbon Monoxide Production by Chemical Looping over Iron-aluminium Oxides.” Energy Technology 4 (2): 304–313.
APA
Rihko-Struckmann, L. K., Datta, P., Wenzel, M., Sundmacher, K., Dharanipragada, N. V. R. A., Poelman, H., Galvita, V., et al. (2016). Hydrogen and carbon monoxide production by chemical looping over iron-aluminium oxides. ENERGY TECHNOLOGY, 4(2), 304–313.
Vancouver
1.
Rihko-Struckmann LK, Datta P, Wenzel M, Sundmacher K, Dharanipragada NVRA, Poelman H, et al. Hydrogen and carbon monoxide production by chemical looping over iron-aluminium oxides. ENERGY TECHNOLOGY. 2016;4(2):304–13.
MLA
Rihko-Struckmann, Liisa K et al. “Hydrogen and Carbon Monoxide Production by Chemical Looping over Iron-aluminium Oxides.” ENERGY TECHNOLOGY 4.2 (2016): 304–313. Print.
@article{7016538,
  abstract     = {H-2 and CO production from H2O and CO2 is investigated experimentally using a two-step chemical looping process based on the redox cycles of iron-alumina mixed oxides. The reduction of Fe3O4 in the first endothermic step is followed by the splitting of CO2 or H2O in a second exothermic step. The iron-aluminum oxides are more reactive with H2O than with CO2 in the range 650-750 degrees C. Insitu XRD shows that deactivation results from different processes: iron oxide sintering and the formation of spinel (FeAl2O4) with a lower oxygen-storage capacity. However, FeAl2O4 assumes the role of Al2O3 and mitigates the iron oxide sintering. Deactivation at 650 degrees C is governed predominantly by sintering, and the further loss of activity is caused by combined sintering and spinel formation. Spinel formation is more dominant at 750 degrees C. A mixed oxide of Fe2O3 and Al2O3 with a mass ratio of 70:30 was the most active and stable for H2O and CO2 splitting in chemical looping.},
  author       = {Rihko-Struckmann, Liisa K and Datta, Pradyot and Wenzel, Marcus and Sundmacher, Kai and Dharanipragada, Naga Venkata Ranga Aditya and Poelman, Hilde and Galvita, Vladimir and Marin, Guy},
  issn         = {2194-4288},
  journal      = {ENERGY TECHNOLOGY},
  keywords     = {REDOX REACTIONS,WATER,DIOXIDE CAPTURE,SYNGAS PRODUCTION,OXYGEN CARRIER,PEM FUEL-CELLS,GAS SHIFT PROCESS,water splitting,iron,hydrogen,aluminum,energy conversion,CO2,COMBUSTION,REACTOR},
  language     = {eng},
  number       = {2},
  pages        = {304--313},
  title        = {Hydrogen and carbon monoxide production by chemical looping over iron-aluminium oxides},
  url          = {http://dx.doi.org/10.1002/ente.201500231},
  volume       = {4},
  year         = {2016},
}

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