Abstract: Methods and apparatus for producing bio-oil that include providing a catalyst that includes red mud in a catalyst bed in a fluid state, the catalyst being maintained at a temperature suitable for pyrolysis; providing a flow of a non-reactive fluid into the catalyst bed; entraining a biomass that includes olive mill waste in the flow of non-reactive fluid, so that the biomass is delivered to the catalyst bed; pyrolyzing the biomass; collecting gases and vapors that result from pyrolysis; and condensing the gases and vapors into bio-oil.