Energy use of biogas through chemical looping technologies with low-cost oxygen carriers

Biogas is a renewable fuel generated in the anaerobic digestion of organic material. The expansion biogas as bioenergy source next decades leads to find new ways for its energy exploitation such Chemical Looping technologies. In this work, low-cost Fe-based residue was used oxygen carrier two processes with biogas, namely Combustion (CLC) and Reforming (CLR). CLC process focused on production CO2 capture. experiments showed higher methane combustion efficiency (∼86%) than those referred literature other materials. CLR dedicated syngas or hydrogen without emissions. Ni- Cu-based had been successfully order catalyse reforming. Here, material also CLR. composition facilitated dry reforming obtain syngas. dry-CLR it possible reach about 55% conversion yield 1.3 mol (CO + H2)/mol CH4. A suitable management effluent gas proposed maximize CH4 yield, which includes separation, H2 purification recirculation. Both results confirm potential use under these technologies promising developed.