The GCB targets the production of liquid biofuels by thermochemical and catalytic routes from naturally grown and mass-produced biomass, agriculture and forestry residues, and organic-rich wastes. Starting with synthesis gas/producer gas from biomass gasification, we develop highly efficient catalytic processes to liquid biofuels or fuel additives/blends. Since the availability of biomass is limited, optimum use of this valuable resource for liquid fuel production is mandatory. One approach to reach this goal is to exploit the natural oxygen content of biomass by producing oxygen-containing biofuels with an added value compared to traditional fuels.