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Dennis Wiesenborn Agricultural & Biosystems Engineering

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Presentation on theme: "Dennis Wiesenborn Agricultural & Biosystems Engineering"— Presentation transcript:

1 Energy beets: a new industrial sugar source for the production of advanced biofuels
Dennis Wiesenborn Agricultural & Biosystems Engineering North Dakota State University Presentation at North Central Regional Sun Grant Center Annual Meeting, Minneapolis, March 18-19

2 Igathinathane Cannayen ABEN, NDSU (Mandan) William Gibbons
Biology & Microbiology, SDSU Scott Pryor ABEN, NDSU Dave Ripplinger Ag Business & Econ, NDSU

3 Juan Vargas-Ramirez

4 What is an “energy beet?”

5 Why beets for biofuel?

6 Why beets for biofuel? Tolerate saline soil
High sucrose yields (up to 13,300 kg/ha) Sucrose directly fermentable Production & processing expertise

7 Challenge: high moisture content (75-80%)
Storage expense Transportation expense

8 Storage options

9 Whole, intact—with or without freezing

10 Thick juice

11 pH & brix for best sugar retention
Vargas-Ramirez, J.M., Haagenson, D.M., Pryor, S.W., Wiesenborn, D.P Determination of suitable storage conditions to preserve fermentable sugars in raw thick beet juice for ethanol production. Biomass Bioenerg.: 59:

12 Objectives Validate storage of thick juice
Develop transportation logistics system Life cycle analysis

13 Obj. 1: Validate storage of thick juice

14 Use of thick juice for fermentation
Cyanobacteria for hydrocarbons 1st samples to Bill Gibbons, SDSU Potential for additional collaboration Commercial strain of yeast

15 Effect of pH adjustment on fermentation
salt

16 Obj. 2: Transportation Logistics Model
David Ripplinger with post-doc Source: county10.com Source: billingsgazette.com

17 Obj. 2: Transportation Logistics Model
Field  Central facility versus Field  Satellite FEP  Central facility Lowest overall cost of industrial sugar

18 Objective 3: Life Cycle Analysis
Scott Pryor with post-doc Field production to industrial sugar Input from Obj. 1 & 2

19 Objective 3: Life Cycle Analysis
Frozen pile vs fresh harvest Conventional process vs Mechanical extraction Liquefaction with enzymes Baseline: corn grain to saccharification

20 Outcomes Validation of thick juice storage
Transportation logistics model Life cycle analysis

21 Acknowledgments Darrin Haagenson, Britta Manning and JT Roe, NDSU-ABEN
Blaine Schatz, Carrington REC Lloyd Anderson & Maynard Helgass, GVG North Dakota Renewable Energy Council

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