BIO OM.CO.,LTD. A bio-refinery is the processes of biomass conversion to produce energy, fuels, and value-added chemicals from biomass. By producing several products, a bio-refinery takes advantage of the various components and the renewable resources in biomass feedstock. The other key benefits in use of bio-based process to produce Bio-energy include replacing depleted fossil energy, and reducing greenhouse gas emissions from the present petroleum-based chemical and energy industries.