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Pyrolysis of Biomass in Molten Salts

Team 3: Liquefaction of biomass for biofuel production. Research Fellow Heidi S. Nygård, Associate Professor Dr Jorge Mario Marchetti Dept. of Mathematical Sciences and Technology (IMT) June 16, 2011.

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Pyrolysis of Biomass in Molten Salts

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  1. Team 3: Liquefaction of biomass for biofuel production. Research Fellow Heidi S. Nygård, Associate Professor Dr Jorge Mario Marchetti Dept. of Mathematical Sciences and Technology (IMT)June 16, 2011

  2. Previous collaboration:Microwave assisted pyrolysisPetter Heyerdahl, Elin Gjengedal (UMB)Roger Ruan (UMN) • Current status:No current collaboration • We will present our current area of research Department of Mathematical Sciences and Technology

  3. Pyrolysis of Biomass in Molten Salts • Pyrolysis – thermochemical conversion process • Biomass is heated in the absence of an oxidizing agent and decomposes into non-condensable gases, liquids and solid chars • The highest yield of liquids (bio-oil/pyrolysis oil) is achieved by fast pyrolysis • moderate pyrolysis temperature (~500oC) • very high heating rates (103-105oC/s) • short gas residence times (<2s) • rapid quenching of the pyrolysis vapours Department of Mathematical Sciences and Technology

  4. Pyrolysis of Biomass in Molten Salts • Molten salts (fused salts) are salts that are heated above the temperature where they melt into liquids • Halides (NaCl, ZnCl2) • Carbonates (K2CO3, Na2CO3) • Characteristiscs of molten salts • Very good heat transfer characteristics (heat capacities) • Very high thermal stability • Can function as solvents • Some molten salts have chemical catalytic properties Department of Mathematical Sciences and Technology

  5. Pyrolysis of Biomass in Molten Salts • The role of the molten salt • Heat transfer medium • Fluid reacting bed • Catalyst Department of Mathematical Sciences and Technology

  6. Laboratory Fascilities at UMB/IMT Department of Mathematical Sciences and Technology

  7. Department of Mathematical Sciences and Technology

  8. Research on biofuels Experimental reaction. Different raw materials Testing different catalyst Biodiesel Kinetics modeling Economic comparison of different technologies Gas sensor Transformation of glycerol

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