Hydrogen production in fluidized bed by chemical-looping cycle

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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 in 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.
Publisher
Springer
Issue Date
2007-05
Language
English
Article Type
Article; Proceedings Paper
Description

This work was presented at the 6th Korea-China Workshop on Clean Energy Technology held at Busan, Korea, July 4-7, 2006.

Keywords

OXYGEN CARRIER PARTICLES; CO2 CAPTURE; REACTIVITY

Citation

KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.24, no.3, pp.542 - 546

ISSN
0256-1115
URI
http://hdl.handle.net/10203/4481
Appears in Collection
CBE-Journal Papers(저널논문)
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