1. Team 12

2. The Team Steve Pohler Eric Michel Nate Gifford Mark Dekker Caleb Mutschler

3. Summary  Overview  Experimental accomplishments  Experimental Obstacles  Base case and UNISIM design  Final Design  Questions

4. Overview  Use algae to convert CO2 to lipids  Convert lipids into biodiesel  Scaled to industrial application

5. Preliminary Experiments  Growth studies on local algae  Conducted research on various strains  Chlorella vulgaris

6. Pilot Plant Construction

7. Pilot Plant  Algae was initially grown in growth chambers  Transferred to reactor  Bacteria was also introduced  Bacteria outcompeted algae for nutrients  Experimentation was discontinued

8. Base Case  Developed a process flow diagram  Utilized UNISIM process simulator to model  Catalyst design decision  Early equipment selection

9. Process Flow Diagram

10. UNISIM  Developed biomass and triglyceride hypotheticals  Useful for early estimates of equipment sizing  Models liquid operations better than solid

11. Final Design  Hand calculations to size equipment  Develop a piping and instrumentation diagram  Process costing  Feasibility analysis

12. Obstacles  Reasonable sizing estimates of photobioreactor  Solids handling  Dewatering  Crushing

13. Questions?