LAUSR

The oxygen carrier (OC) is the main component of the chemical looping combustion (CLC), process. Most OCs have been developed synthetically using an active metal oxide combined with an inert material. When solid fuels are used, the OC becomes mixed with the ashes generated during the CLC process and has to be removed, thereby increasing costs. As a result, there is growing interest in the use of low-cost OCs based on manganese and iron. Given the widespread use of coal to produce energy, there is a trend toward the study of the CLC process using solid fuels, since this process has the lowest energy penalties of all the combustion methods involving CO2 capture. Coproducts from the exploitation of Mn and Fe ores have been studied. These materials were selected from a group of eight minerals with Fe and Mn present in their composition, extracted from mines located in southwestern Colombia. The material selection process was based on crushing strength analysis and reactivity in thermographic analysis (TGA), u...