EVALUATION OF REDUCTION KINETICS OF COPPER OXIDE ON VARIOUS SUPPORTS FOR CHEMICAL-LOOPING WITH OXYGEN UNCOUPLING

摘要

In order to scale up a CLOU (Chemical-looping with Oxygen Uncoupling) reaction system usingcopper oxide as the oxygen carrier, the reaction kinetics of CuO/Cu_2O must be better understood.In an effort to better understand the kinetics of the CuO/Cu_2O system the University of Utahconducted a set of experiments on 3 different copper-based oxygen carriers. The kinetics of thereduction reaction of 50wt% CuO on TiO_2, 20 wt% CuO on SiO_2 and 45wt% CuO on MgOstabilizedZrO_2 measured under an inert atmosphere (CLOU conditions) in a thermogravimetricanalyzer (TGA) and lab-scale fixed and fluidized beds are presented.