Abstract
To investigate the feasibility of a chemical-looping hydrogen generation system, we investigated the reduction and water splitting reaction characteristics for three mediators and two reducing gas in a bubbling fluidized bed reactor (0.02 m I.D.). For three oxygen carrier particles (NiO/bentonite, Fe2O3/bentonite, (NiO:Fe2O3)/bentonite), hydrogen was used as a reduction gas and water was used as an oxidation gas. For (NiO: Fe2O3)/bentonite particle, carbon monoxide, which is the main component in the syngas from coal or heavy residue, was used as a reducing gas to check reactivity for the carbon containing fuels and carbon deposition characteristics. Based on the reactivity tests, (NiO: Fe2O3)/bentonite particle was selected as the best mediator for the chemical-looping hydrogen generation system to achieve stable continuous operation.
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Jin, G.T., Ryu, HJ., Jo, SH. et al. Hydrogen production in fluidized bed by chemical-looping cycle. Korean J. Chem. Eng. 24, 542–546 (2007). https://doi.org/10.1007/s11814-007-0096-5
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DOI: https://doi.org/10.1007/s11814-007-0096-5