CuO promoted Mn2O3-based materials for solid fuel combustion with inherent CO2 capture

Abstract

We experimentally demonstrate the promising redox and oxygen release characteristics of a novel bimetallic Cu–Mn oxygen carrier for chemical-looping with oxygen uncoupling (CLOU) based CO₂ capture. The new material was prepared via a co-precipitation technique and showed a higher oxygen partial pressure than pure CuO and a higher oxygen carrying capacity than Mn₂O₃, thus, synergistically combining the advantages of the individual metal oxides. The promising CLOU characteristics of the new material were demonstrated further by combusting charcoal fully in a fluidized bed and producing a pure stream of CO₂.