Preparation and characteristic of compounds type Sr(Mn_(1-x)Ni_x)O3 physical and chemical properties in relation to their use in chemical looping oxygen transfer

摘要

New perovskite type materiales based on transition metal were obtained. They physical chemical properties were described, according to confirmation their practical properties as oxygen carriers for chemical looping process. TG investigations proved, that obtained materials posses good oxygen transport capacity between 4.9 and 8.5 weight % (800°C). They are characterized by high melting points, above 1300°C in reductive atmosphere (CO), low particle size distribution below <200 μm, small surface proper values based on BET about 1-2 m~2/g, low lost on attrition from 1.9 % for Sr(Mn_(0.8)Ni_(0.2))O3 to 4.1 % for SrMnO3 material.