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Abstract: Aqueous-phase reforming (APR) of the low-boiling fraction (LBF) of bio-oil from rice husk pyrolysis was investigated over Pt/Al2O3 for hydrogen production. The influence of reaction temperature (503–563K), reaction time (1–4h), different load of organics in water (3–12wt.%) and catalyst amounts (0.25–1g) were studied. The hydrogen content of the gas products reached 65vol.% at 533K for 4h with a feedstock of 9.6g LBF and 30mL water in the presence of 0.5g of 2wt.% Pt/Al2O3. APR is a promising method to make use of the organics in LBF of bio-oil to produce hydrogen. [Copyright &y& Elsevier]

Abstract: A study of the liquid-phase conversion of biomass-derived sugars directly to methyl lactate catalyzed over solid base catalysts is presented. The yield of methyl lactate reached 29.45% under optimal reaction conditions. The effects of reaction time, reaction temperature, and catalysts calcination temperature were investigated. Fresh and used catalysts were characterized by XRD, CO2-TPD, and N2-adsorption techniques. MgO with the highest concentration of weakly basic sites was found to show the highest catalytic activity for the conversion of sugars to methyl lactate. [Copyright &y& Elsevier]