OP-II-3

PL-3Main features of developed technology are:− biofuel production of two types: biodiesel and green diesel;− varying of biodiesel and green diesel yields depending needs;− optimization of hydrogen consumption;− energy-supply of both stages via burning of gaseous products, produced on2nd step.Catalytic characteristics of the technology include application of heterogeneousbasic trasetherification catalysts under 200-220°C and 2.0 MPa and possibility ofmultiple catalyst regeneration for the first stage. For the second stage these onescomprise using of non-sulfided and non-noble metal catalysts, mild reactionconditions (300-340°C and 2.0 MPa H 2 ) and possibility of green diesel productionwith different cetane number via hydroisomerization catalysts application.The bio-oil, which is a product of flash pyrolysis of grinded wood, is anotherperspective feedstock for the petrol production. However bio-oil cannot substitutetraditional gasoline and diesel in the internal-combustion engines on its own owing totheir lower operational properties. The main reason is the high oxygen content inabove mentioned bio-fuels. Bioethanol and biodiesel can be used as the additive togasoline and diesel correspondingly while bio-oil requires catalytic elimination ofoxygen from it and simultaneous saturation by hydrogen.It should be pointed out that one cannot use traditional hydrocracking catalystsfor oil-refinery at hydrotreatment of bio-fuels because of low sulfur content in originalfeedstock. The main reason of these phenomena is reduction of the sulfided Co- orNi- containing active center to the metal state, followed by coke formation and thecatalyst deactivation. When so, sulfur is removed from the catalysts and the targetproducts are contaminated by sulfur. Thus, the objective of the present investigationis to develop non-sulfided catalysts for upgraded bio-fuels production. The obtainedupgraded products can be used as additives to fossil crude-oil in the standard oilrefining.On the whole catalytic process development is carried out within FP6BIOCOUP project with following conception:BiomassresiduesLiquefactionProcessresiduesFractionationduring andaftercondensationHydrocarbon-rich fractionLignin-richfractionDe-oxygenationDerivatives of hemicellulosesand cellulosesCo-processing inconventionalpetroleum refineryConversionConventional fuelsand chemicals(blending)Oxygenated productsEnergyproductionNote: hydrocarbon-rich fractions are formed when the biomass feedstock contains asignificant amount of extractive substances; e.g the case for forestry residues.12