From Left: Joshua Harbert, Christian Ocier, Mitch Kenyon, Fred Thielke, Adebo Alao
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Transcript of From Left: Joshua Harbert, Christian Ocier, Mitch Kenyon, Fred Thielke, Adebo Alao
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From Left: Joshua Harbert, Christian Ocier, Mitch Kenyon, Fred Thielke, Adebo Alao
Calvin College
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Outline
•What – Project Overview•Why – Underlying Reasoning•How – Technical Requirements•Who – Other Potential Users•Acknowledgements•Questions
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Our ProjectDesign and construct a process to convert Yellow Grease into biodiesel•Capable of processing high Free Fatty Acid (FFA) feedstock•45 gal capacity•2-stage process
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Our Project
Yellow Grease is obtained from Campus Dining Services
Tentative plans for reactor•Donate to Calvin College•Campus Student Organization will operate reactor to fuel a campus commuter van
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Why Are We Doing This?1. We believe that: •There is an energy crisis arising•There is no single solution
2. We also believe that the solutions will be dependent on:•Life style changes•Cultural and regional resource use•Sustainable/renewable energy
3. Education and good examples will be very importantin solving this problem
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Where Does Biodiesel Come From?
Soy oil has limited potential•Soy oil costs $2.16/gal•Processed yellow grease costs between $0.91-$1.13/gal
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Alternatives For Our Process?
Trap grease is an alternative to yellow grease•Contain high FFA•Difficult to collect•Difficult to process• Virtually Free
A process like ours is ideal for high FFA feedstocks
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Inputs and Outputs
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How We Are Doing This?
Basic Components• Reaction vessel• Filter• Polisher• Pump• Agitator• Vacuum Pump• Methanol Condenser
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How We Are Doing This?
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GlycerinWaste glycerin can be reprocessed and:•Produces Ethylene Glycol and Propylene Glycol •Yields a profit of $1.34 per gallon of glycerin
Based on a study by University of Waterloo Engineering Department
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Adsorption
Polymer Adsorbent
Polishing Column
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Vacuum DistillationVacuum Distillation:•Pulls a vacuum on the reactor to recover the methanol and remove the water
Advantages:•Water in oil boils at ~140°C •With a vacuum it is only 60°C•Prevents fume leakage of Methanol and Potassium Methoxide, which are flammable and poisonous•Uses significantly less energy
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Energy and Cost
Some data based on calculations and lab work
•$0.78/gal (free WVO)
•$1.88/gal (WVO @ $1.13/gal)
•Input energy=1.17MJ/kg
•Energy delivered=12.72MJ/kg
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Who Should and Shouldn’t do This
Suitable for:•Trucks, boats, generators, personal vehicles•Most unmodified diesel engines•Most moderate climates
Not Suitable for:•Very cold environments•Older diesel engines (natural rubber parts)
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Thanks and Acknowledgements
•Energy Office of Michigan •Calvin College•The University of Waterloo•Mary Jo Pulte
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Questions?