Continuous operation characteristics of chemical looping hydrogen production system

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Three-reactor chemical looping (TRCL) is a hydrogen and electricity production technology with inherent separation of carbon dioxide by use of the iron-based oxygen carrier particles. In this study, an integrated continuous operation test unit (300 W-th) using 20 wt% Fe2O3/ZrO(2)as an oxygen carrier was successfully operated over 13 h. The average CH4 conversion was 94.15% in a fuel reactor in a moving bed mode. Nearly pure hydrogen (99.95%) was obtained from a steam reactor (SR). The steam conversion to H-2 was around 63% of the thermodynamic limit in the SR. The hydrogen containing CO was observed from the SR when the carbon deposited particles were introduced into the SR. During the continuous operation, the oxygen carrier particles maintained its physical and chemical properties with high durability in the TRCL system.
Publisher
ELSEVIER SCI LTD
Issue Date
2014-01
Language
English
Article Type
Article
Keywords

IRON-OXIDE; OXYGEN CARRIERS; CO2 CAPTURE; COMBUSTION; REDUCTION; KINETICS; FUEL; MODEL; UNIT; COAL

Citation

APPLIED ENERGY, v.113, pp.1667 - 1674

ISSN
0306-2619
DOI
10.1016/j.apenergy.2013.08.078
URI
http://hdl.handle.net/10203/188763
Appears in Collection
CBE-Journal Papers(저널논문)
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