Examination of chemical-looping combustion of gaseous fuels by 1-dimensional modeling and experiments
Paper i proceeding, 2014

This work presents a 1-dimensional model for the fuel reactor in chemical looping combustion (CLC) with gaseous fuels. Modeled fuel conversion is in good agreement with experimental data from a 300W CLC unit using syngas as fuel and ilmenite as oxygen carrier. The sub-model for the solids fluid dynamics is based on semi-empirical expressions derived and typically used in regular fluidized bed air combustion. These expressions have here been experimentally validated for conditions relevant to chemical looping combustion with data from a 100 kW CLC unit and a cold flow model of the same unit. Fuel conversion is modeled accounting for both heterogeneous and homogeneous kinetics and assuming a classical twophase flow approach for which the influence of the correlation chosen for the gas interchange coefficient is found to have a slight influence the results.


Jesper Aronsson

Chalmers, Energi och miljö, Energiteknik

David Pallarès

Chalmers, Energi och miljö, Energiteknik

Anders Lyngfelt

Chalmers, Energi och miljö, Energiteknik

11th International Conference on Fluidized Bed Technology, CFB 2014; Beijing; China; 14 May 2014 through 17 May 2014