Abstract: Fuel composition and methods of making fuel compositions including 50-90 wt % pyrolysis oil, 0.1-40 wt % water, 1-30 wt % alcohol, and 0.1-4 wt % surfactant, wherein the composition is an emulsion. The pyrolysis oil may be a crude pyrolysis oil and may be produced by pyrolysis of biomass material. The pyrolysis oil and surfactant may form the continuous phase and the water and alcohol may form the dispersed phase of the emulsion. Alternatively, the water and alcohol may form the continuous phase and the pyrolysis oil and surfactant may form the dispersed phase of the emulsion.

Abstract: Biofuel compositions and methods. Biofuel compositions comprised of glycerine, water and one or more alcohols can be prepared and utilized as an alternative or renewable fuel or mixed with other fuels and fuel products. The methods of preparation require simple mixing as the biofuel composition is a solution. The components can be mixed in any sequence. By varying the amount of water and/or alcohol mixed with the glycerine allows for preparation of biofuel compositions having consistent or uniform properties, such as pour point and/or flashpoint even using glycerine from different sources and having different specifications.