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Algae Biofuel

Algae Biofuel. TEAM – 6 CHEN – 282 Jennifer Gilmer, Tyler Goodall , Avanti Kavarthapu , Angela Martinez. Outline. What is Biodiesel? Types of Bioreactors Algae Extraction Methods Why would a bio-based system be beneficial ? Drawbacks of using Biodiesel Improvements Conclusions.

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Algae Biofuel

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  1. Algae Biofuel TEAM – 6 CHEN – 282 Jennifer Gilmer, Tyler Goodall, Avanti Kavarthapu, Angela Martinez

  2. Outline • What is Biodiesel? • Types of Bioreactors • Algae Extraction Methods • Why would a bio-based system be beneficial? • Drawbacks of using Biodiesel • Improvements • Conclusions

  3. What is Biodiesel? • A type of biodiesel being looked at is that made from cultivating algae. • The process for converting the oil from algae to biodiesel is called transesterification.

  4. Types of Bioreactors • Open ponds—Shallow pools of water open to the atmosphere. • Photobioreactors– Enclosed ponds.

  5. Algae Extraction Methods • Current methods for oil extraction from algae are: • Expeller/press method presses out 70 – 75% of the oil from the algae. • Hexane solvent method is a little more efficient than a press. Most common method.

  6. Algae Extraction Methods • Supercritical fluid method is the most efficient method where almost 100% of the oil can be extracted.

  7. Why would a bio-based system be beneficial? • Cost at the pump • Reliable • Up to 17% of U.S. oil imports could be met with algae. • Environmentally favorable • Carbon neutral

  8. Drawbacks of using Biodiesel • Performance • Expensive • Cost at the pump revisited • Diesel engines

  9. Improvement to current standard • Introduction of the enzyme: monoterpene synthase from basil. • Monoterpene synthase creates and automatically secretes the lipid oil geraniol.

  10. Conclusion

  11. References • Rosenberg, J., Oyler, G., Wilkinson, L., and Betenbaugh, M. “A green light for engineered algae: redirecting metabolism to fuel a biotechnology revolution.” “Biotechnology.” 2008. 19:430-436. • Schenk, P., Thomas-Hall, S., Stephens, E., Marx, U., Mussgnug, J., Posten, C., Kruse, O., and Hankamer, B. “Second Generation Biofuels: High-Effiency Microalgae for Biodiesel Production. “Bioenergy Res.” 2008. 1:20-43. • Demirbas, A., and Demirbas, M.F. “Importance of algae oil as a source of biodiesel.” “Energy Conversion and Management.” 2011. 52:163-170. • Christ, Yusuf. “Biodiesel from microalgae beats bioethanol.” “Trends in Biotechnology.” 2007. 26:3:126-131. • Vijayaraghavan, K., and Hemanathan, H. “Biodiesel Production from Freshwater Algae.” “Energy Fuels.” 2009. 32:5448-5453. • Hossain, S., Salleh, A., Nasrulhag Boyce, A., Chowdhury, P., and Naqiuddin., M. “Biodiesel Fuel Production from Algae as Renewable Energy.” “American Journal of Biochemistry and Biotechnology.” 2008. 4(3):320-254.

  12. Questions?

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