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MAXIFUELS: Second generation bioethanol technology

MAXIFUELS: Second generation bioethanol technology. Birgitte K. Ahring. Transportation accounts for 28% of the total CO 2 -emission within EU-15 and 67% of the oil import. Ændring i EU’s udledning af drivhusgasser (1990-1999). Kilde: WWW. BAFF.INFO. Derfor biobrændstof.

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MAXIFUELS: Second generation bioethanol technology

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  1. MAXIFUELS: Second generation bioethanol technology Birgitte K. Ahring

  2. Transportation accounts for 28% of the total CO2-emission within EU-15 and 67% of the oil import

  3. Ændring i EU’s udledning af drivhusgasser (1990-1999) Kilde: WWW.BAFF.INFO

  4. Derfor biobrændstof

  5. Miljø er ikke den vigtigste driver for biobrændstof • Forsyningssikkerhed • Olieerstatning • Landbrugsproduktion • Beskæftigelse • Fremtidig vækst

  6. Hvorfor ikke brænde biomassen af?- mest CO2 og mest netto energi • Fordi biomasse kan bruges til at løse olieafhængigheden i transportsektoren • Fordi biobrændstofproduktion går hånd i hånd med forbrænding • Fordi der ikke altid er brug for overskudsvarme • Fordi der er forskel på energikvaliteter • Fordi forbrænding er dyrt (tilskud på imellem 500 og 800 kr pr. ton halm) • Fordi det ikke er en global løsning

  7. Transport ved afbrænding af biomasse

  8. Biobrændstof er en global løsning som sker nu Danmark kan være med eller måske lade være

  9. EU Directive, March 12, 2003 • 2% Biofuels in year 2005 • 5.75% Biofuels in year 2010 25% biofuels in year 2030

  10. Biobrændstof target 2005 for 18 EU medlemslande

  11. Current Technologies Starch Ethanol Substrates: Corn, Grain, Sugarcane… Bioethanol – Production Technologies Future Technologies Lignocellulose Ethanol Substrates: Stover, Straw, Bagasse, Wood…

  12. glucose xylose, arabinose, galactose, mannose, glucose. Straw, wood, etc.. Lignin, other components 5-25% Cellulose 35-45% Yeast Hemicellulose Ethanol 25-40% HY10 Klinke et al., 2000

  13. The Danish Bioenergy Concept

  14. The Future Bioethanol Process • Substrate: Lignocellulose Wheat Straw Willow Coffee Husks Corn Stover Eucalyptus Wood Etc.. Rice Straw SugarcaneBagasse

  15. Optimal Bioconversion Biomass converted 100% The extra step producing methane ensures optimal utilization of the biomass. What is not transformed into ethanol can be converted into methane Biogas produced Ethanol produced 0% EtOH yield

  16. Optimized use of the biomass Organic material in the process water Oxidized in the pre-treatment Biomethane 19% 3% 5% Ethanol from SSF Solid lignin for CHP 19% 35% 20% Ethanol from pentoses Mass balance based on COD

  17. From Lab Scale to Full Scale

  18. Wheat Straw in DK: Over 1.000.000 tons of straw are collected for combined heat and power supply per year in DK

  19. Thank you for your Attention

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