The introduction of biomass derived compounds as an alternative feed into the existing refinery structure can converge energy uses with ecological sustainability. This goal was reached by a two-step process: bio-oil production by hydrolysis-ketalization reactions of biomass followed by catalytic upgrading, as shown below. This bio-oil showed greater chemical inertness and miscibility in hydrocarbons than fast pyrolysis bio-oil. The co-processing of bio-oil and gasoil improved gasoline yield and quality comparing to pure gasoil, together with reduced amounts of oxygenated compounds and coke, demonstrating synergistic effect.Second-generation biomass treatment with acid and ketone, generating a bio-oil mainly composed of ketal type compounds, i.e. 1:2-5:6-di-O-isopropylidene-a-D-glucofuranose(DG  ), 1,2:3,5-di-O-isopropylidene-a-D-xylofuranose(DX  ) and 2,3:4,5-di-O-isopropylidene-b-D-fructopyranose(DF  ). Large amounts of aromatic compounds in the gasoline range were obtained by catalytic upgrading of bio-oil and gasoil through catalytic cracking.

From biomass to gasoline through a carbohydrate-based refinery-friendly bio-oil

248th National Meeting (2014)

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