期刊
KOREAN JOURNAL OF CHEMICAL ENGINEERING
卷 26, 期 2, 页码 523-527出版社
KOREAN INSTITUTE CHEMICAL ENGINEERS
DOI: 10.1007/s11814-009-0089-7
关键词
Chemical-looping; Oxygen Carrier; Carbon Dioxide; Nitrogen Oxides; Syngas
资金
- Ministry of Knowledge Economy (MKE)
- Electric Power Industry Technology Evaluation & Planning Center (ETEP)
Syngas combustion characteristics of oxygen carrier particles have been investigated. Experiments were performed on four oxygen carrier particles in a fluidized bed reactor. All four oxygen carrier particles showed high gas conversion, high CO2 selectivity, and low CO concentration in the reducer and very low NOx (NO, NO2, N2O) emissions in the oxidizer. Moreover, all particles showed good regeneration ability during successive reduction-oxidation cyclic tests up to the 10(th) cycle. The results indicate that inherent CO2 separation, NOx-free combustion, and long-term operation without reactivity decay of oxygen carrier particles are possible in a syngas fueled chemical-looping combustion system with NiO/bentonite, NiO/NiAl2O4, CoxOy/CoAl2O4, and OCN-650 particles. However, CoxOy/ CoAl2O4 represented slight decay of oxidation reactivity with the number of cycles increased and the oxidation rate slower than other particles.
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