Costa et al. (2026): Low-cost copper ore oxygen carrier for Bio-CLOU systems: performance assessment and potential for negative-carbon bioenergy (BECCS)
Tiago Roberto Costa, Amirhossein Filsouf, Iñaki Adánez-Rubio, Renata Martins Braga, Dulce Maria Araújo Melo, Juan Adanéz, IN: Biomass and Bioenergy, https://doi.org/10.1016/j.biombioe.2026.109460
Bioenergy with carbon capture and storage (BECCS) is recognized as a key negative-emission strategy for climate mitigation, and its large-scale implementation can be strengthened through Chemical Looping with Oxygen Uncoupling (CLOU), which enables efficient solid biomass conversion with inherent CO₂ capture. In this context, this study investigates a low-cost natural copper ore as an oxygen carrier for Bio-CLOU systems. The material (designated as CuB) was thermally treated to remove sulfur and enhance mechanical strength, and its redox performance was assessed via TGA and batch fluidized bed experiments under biomass combustion conditions.