Cellulosic Biofuels: Today’s OpportunityPlans for DuPont’s First Commercial Cellulosic Ethanol Plant 27.5 million gallon/year plant planned to be built in Nevada, Iowa (on 57.75

William D. Provine January 30th, 2012

ACS Science & Congress

“Cellulosic Biofuels’ Economic and Technological Challenges: Speed

Bumps or Detours?”

Cellulosic Biofuels: Today’s Opportunity

BioFuel Commercialization Requires Optimization Along Value Chain

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• Product performance

• Price/Cost

Modified from image from US DOE Office of Biomass

DuPont Biorefinery Value Chain Carbohydrates to Fuels & Chemicals

Biofuels

Differentiated Products

Cellulose

Starch

Biobutanol

Plant Feedstocks

Biofuels Biochemicals

Fermentation Processes

Agricultural Inputs

Conversion to Sugars

Sugar

Seed Crop Protection

Ethanol

Bio-PDOTM

Biochemicals

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Cellulosic Ethanol

Cellulosic Ethanol Platforms

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Image from DOE Office of Biomass: Biofuels, Biopower, and Bioproducts: Integrated Biorefineries

DuPont Cellulosic Ethanol Demonstration Plant - Vonore, TN Capacity: 250,000 gallon/yr, operational since December 2009

Operational Status: Producing cellulosic ethanol today Commercial targets in-reach Generating process optimization data Commercial plant design underway

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020406080

100

Yield (gal/ton)

CurrentGoal

Plans for DuPont’s First Commercial Cellulosic Ethanol Plant

27.5 million gallon/year plant planned to be built in Nevada, Iowa (on 57.75 acres of land recently purchased by DuPont) with startup by 4Q13/1Q14.

Utilizes stover to fuel-grade ethanol technology developed in Wilmington, DE and demonstrated in Vonore, TN.

Strategically positioned close to Pioneer HQ/R&D center (Johnston) as well as Genencor enzyme production plant (Cedar Rapids)

Rendering of biorefinery

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BP

DuPont

BP

DuPont DuPont

7 Modified from http://www1.eere.energy.gov/biomass/integrated_biorefineries.html

Industrial Biorefinery Projects – Industry is moving forward and needs continued support

Hagley Powder Mills “Birthplace of DuPont”

DuPont Experimental

Station

DuPont Tate Lyle Bio-PDOTM Plant DuPont Cellulosic Ethanol Demo Plant

Vonore, TN