Journal ArticleDOI
Steam-iron process: Influence of steam on the kinetics of iron oxide reduction
TLDR
In this paper, the effect of water vapour on the kinetics of the steam-iron process was investigated and two models, the competitive model and the inhibitive model, were proposed to predict the behavior of the solid subjected to successive reductive and oxidative cycles.About:
This article is published in International Journal of Hydrogen Energy.The article was published on 2011-10-01. It has received 35 citations till now. The article focuses on the topics: Iron oxide & Reaction rate.read more
Citations
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Journal ArticleDOI
Reduction of Iron Oxides with Hydrogen—A Review
Daniel Spreitzer,Johannes Schenk +1 more
Journal ArticleDOI
In Situ DRIFTS-MS Study of the Anaerobic Oxidation of Ethanol over Spinel Mixed Oxides
Juliana Velasquez Ochoa,Cristian Trevisanut,Cristian Trevisanut,Jean-Marc M. Millet,Guido Busca,Fabrizio Cavani +5 more
TL;DR: In this paper, the anaerobic oxidation of ethanol over spinel mixed oxides was studied by means of in situ diffuse reflectance spectroscopy (DRIFTS) and mass spectrometry (MS).
Journal ArticleDOI
Sticking of iron ore pellets during reduction with hydrogen and carbon monoxide mixtures: Behavior and mechanism
TL;DR: In this paper, the effects of the temperature, syngas constituents and reduction degree on the sticking properties of iron ore pellets in the presence of H2-CO mixtures were evaluated.
Journal ArticleDOI
Magnetic bio-activated carbon production from lignin via a streamlined process and its use in phosphate removal from aqueous solutions.
TL;DR: The results indicate that iron species are embedded into the carbon matrix by lignin melting, suggesting that the representative MBAC product has a comparable phosphate adsorption capacity to most of the reported MBCs and MBACs.
Journal ArticleDOI
Role of Catalyst Oxidation State in the Growth of Vertically Aligned Carbon Nanotubes
TL;DR: In this article, the impact of gas phase pretreatment of a supported iron-oxide catalyst utilized in aligned carbon nanotube (CNT) growth is studied to understand the correlation between the catalyst oxidation state and the growth characteristics of the aligned CNT forests.
References
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Journal ArticleDOI
The reduction of hematite to wustite in a laboratory fluidized bed
TL;DR: In this article, a small fluidized bed was used to reduce magnetite to wustite by CO2, H2-H2O, and CO-CO2 to H2O.
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Thermogravimetric Investigations of Modified Iron Ore Pellets for Hydrogen Storage and Purification : The First Charge and Discharge Cycle
TL;DR: In this article, the reaction characteristics of iron contact mass for the first charging and discharging cycle, thermogravimetric analysis was used in the temperature range of 500−1000 °C.
Journal ArticleDOI
Kinetics of reduction of hematite with hydrogen gas at modest temperatures
Y. K. Rao,M. Moinpour +1 more
TL;DR: In this paper, the authors investigated the kinetics of hydrogen reduction of thin, dense strips of hematite in the range 245 °C to 482 °C, where pure hydrogen gas at 1 atm was used as reducing agent.
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Microstructural and surface area development during hydrogen reduction of magnetite
P.G. Caceres,M.H. Behbehani +1 more
TL;DR: In this article, the microstructural development of the catalyst changed with reduction temperature and promoter addition, and the main effect of alkali addition is manifested in the decrease in the heat of adsorption of carbon monoxide and in the inhibition of the reaction C(ads) → C(deposited), keeping the carbon atoms in the adsorbed state for longer periods of time and reducing coke deposition.
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The application of CRTA and linear heating thermoanalytical techniques to the study of supported cobalt oxide methane combustion catalysts
TL;DR: In this paper, the effects of various support materials on the preparation and subsequent combustion activity of supported cobalt oxide catalysts were studied using a solid insertion probe mass spectrometer (SIP-MS) system operating under high vacuum.