Slide 1
POET Project LIBERTYOverview
Project LIBERTY
Integrate cellulosic ethanol technologies with corn-based
ethanol technologies
Build and operate one of the first commercial-scale cellulosic
ethanol biorefineries in the world
POET Biorefining - Emmetsburg
125 million gallons of ethanol
25 million gallons from corn cobs & fiber
11% more ethanol from a bushel of corn
27% more ethanol from an acre of corn
Project LIBERTY Will Deliver
Key Project Deliverables
A sustainable cob collection, storage, and delivery system
Reduced fossil fuel and water usage
Viable and replicable model for multiple biorefineries
Project LIBERTY
Ethanol
Corn GrainCorn Germ
EndospermCO2
Ferment
DistillCentrifuge& DryPre-treat
Hydrolysis &FermentationDistill
Steam to ProcessFiberCellulosic Ethanol
Biomass BoilerSeparatorSolid FuelAnaerobicDigesterLiquids
BoilerBiogas
DDG Dryers
Electric Generator
DGHP
Corn Cobs
Going ahead with this
Federal/POET Partnership $80 million DOE grant to POET to
design, construct, build and operate LIBERTY
LIBERTY Timeline
Why Cobs ?
Location of the Biomass
Why Cobs?
Abundant supply
Low level of soil nutrients
More carbohydrate
More than 2X the density of corn stover
Collectible and sustainable
Greater ethanol yield
U.S. corn cobs represent over 5 billion gallons of ethanol
Why Not Other Feedstocks?
Other feedstocks would likely require:
New growers, new crops
Land use changes
New biorefineries
Significantly different equipment, transportation, and logistics
methods
Corn cobs are the first logical step toward cellulosic
ethanol
Project Status
Design and engineering phase is underway
DOE issued a Finding of No Significant Environmental Impact
Finalized agreements for the DOE $80 million grant in September,
2008
Cobs in Emmetsburg, Iowa
Project LIBERTY Benefits
Minimizes global warming
Supports goal of 36 billion gallons of renewable fuels by
2022
Builds upon the corn-to-ethanol foundation of the industry
Creates opportunities in rural America
Reduces nations dependency on foreign oil
Project LIBERTY Website
www.projectliberty.com
Cob Harvest MethodsLIBERTY Field DayNovember 6, 2008Emmetsburg,
Iowa
Cobs: From Field to Biorefinery
F a r m e r R e s p o n s i b i l i t y P O E T R e s p o n s i
b i l i t yCollection In-Field Transport In-Field StoragePile
Pick-Up Transportation Receiving
Project LIBERTY Field Day
Three collection options were showcased:
Corn / Cob Mix (CCM)
Whole Cob Towable
ISU/Deere Harvester
Photo ofCorn
Corn / Cob Mix (CCM)
CCM in TankCCM Separation
COMBINE
CornCobs
CCM Systems at the Event
Wildcat Screener
Whole Cob Towables
Separation Done Here
TOWABLECOMBINECornCobs
Towable Systems at the Event
ISU/John Deere Harvester
Cobs: From Field to Biorefinery
F a r m e r R e s p o n s i b i l i t y P O E T R e s p o n s i
b i l i t yCollection In-Field Transport In-Field StoragePile
Pick-Up Transportation Receiving
CCM in Transit to Separator
In-Field Whole Cob Transport
Cobs: From Field to Biorefinery
F a r m e r R e s p o n s i b i l i t y P O E T R e s p o n s i
b i l i t yCollection In-Field Transport In-Field StoragePile
Pick-Up Transportation Receiving
In-Field Storage
Cobs: From Field to Biorefinery
F a r m e r R e s p o n s i b i l i t y P O E T R e s p o n s i
b i l i t yCollection In-Field Transport In-Field StoragePile
Pick-Up Transportation Receiving
