Co-processing of Biomass Waste and HeavyOil Fraction as an Effective Way for Fuel Production
Chemical Engineering Transactions(2022)
Abstract
The integration of biofuel upgrading processes in the existing technologies of crude oil refining is considered to be one of the promising directions for the production of liquid motor fuels. In this work, the co-processing of bio-oil obtained from biomass waste and heavy oil fractions in the supercritical solvent was studied. The bio-oil was obtained by the slow pyrolysis of birch and pine wood sawdust in the presence of a Fe-containing zeolite-based catalyst. The influence of the catalyst on the yield and composition of liquid products was studied. To find the optimal reaction conditions, the co-processing of the model compounds (anisole – eicosane – dibenzothiophene) was carried out by varying the solvent, reaction temperature, and the initial nitrogen pressure. Full removal of oxygen and sulfur as well as a decrease in the concentration of heavy and polyaromatic compounds from the feedstock were observed under the following process parameters: solvent – propanol-2, reaction temperature – 260 °C, initial nitrogen pressure – 1.5 MPa, total pressure – 7.2 MPa.
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Key words
biomass waste,heavyoil fraction,fuel,co-processing
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