Kinetics of CuO/SiO2 and CuO/Al2O3 oxygen carriers for chemical looping combustion
نویسندگان
چکیده
منابع مشابه
Effect of support on reactivity and selectivity of Ni- based oxygen carriers for Chemical-Looping Combustion
Different Ni-based oxygen carriers were prepared by dry impregnation using -Al2O3 as support. The reactivity, selectivity during methane combustion, attrition rate and agglomeration behaviour of the oxygen carriers were measured and analyzed in a termogravimetric analyzer and in a batch fluidized bed during multicycle reductionoxidation tests. * Manuscript
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The reactivity of three Cu-, Fe-, and Ni-based oxygen carriers to be used in a chemical-looping combustion (CLC) system using syngas as fuel has been analyzed. The oxygen carriers exhibited high reactivity during reduction with fuel gases present in syngas (H2 and CO), with average values in the range 8-30 % min. No effect of the gas products (H2O, CO2) on the reduction reaction rate was detect...
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Chemical-Looping Combustion (CLC) is an emerging technology for CO2 capture because separation of this gas from the other flue gas components is inherent to the process and thus no energy is expended for the separation. Natural or refinery gas can
متن کاملReduction kinetics of CoO-NiO/Al2O3 oxygen carrier for chemical-looping combustion
This communication reports the reduction mechanism and kinetics of CoO-NiO/Al2O3 oxygen carrier using methane as the reduction gas. Kinetics experiments are performed in a novel fluidized bed CREC riser simulator under turbulent fluidized bed reaction conditions. A shrinking-core model is used for the kinetic modeling assuming spherical grains of the oxygen carrier particles. The XRD analysis s...
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ژورنال
عنوان ژورنال: Chemical Engineering Science
سال: 2018
ISSN: 0009-2509
DOI: 10.1016/j.ces.2017.09.044