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Ethanol from Perennial Grasses & Biobased Plastics from Canola. Dr. Scott Pryor Assistant Professor Agricultural and Biosystems Engineering. National Farm Business Management Conference June 13 - 17, 2010 Fargo - Moorhead. Topic Areas. 1: Protein-Based Plastics & Composites. - PowerPoint PPT Presentation
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Ethanol from Perennial Grasses & Biobased Plastics from Canola
Dr. Scott PryorAssistant Professor
Agricultural and Biosystems EngineeringNational Farm Business Management Conference June 13 - 17, 2010Fargo - Moorhead
Topic Areas
1: Protein-based Plastics
2: Sugar Beet Pulp Ethanol
3: Ethanol with Mixed Perennial
Feedstocks
4: Biobased Energy Course
1: Protein-Based Plastics & Composites
Canola Seed Canola Protein Isolate
Plastic Test Specimens
Protein Isolates:1. Solubilize proteins
at high pH2. Filter/separate fiber and
other solids3. Precipitate proteins
at low pH
Solubilization pH
Prec
ipita
tion
pH
13.012.512.011.511.0
5.5
5.0
4.5
4.0
3.5
> – – – – – < 21.0
21.0 22.522.5 24.024.0 25.525.5 27.027.0 28.5
28.5
Yield
Influence of Solubilization and Precipitation pH on Protein Yield
Solubilization pH
Prec
ipita
tion
pH
13.012.512.011.511.0
5.5
5.0
4.5
4.0
3.5> – – – – – < 0
0 11 22 33 44 5
5
(MPa)StrengthTensile
Influence of Solubilization and Precipitation pH on Tensile Strength
+
Area of Maximum Yield
Potential Plastic Improvements with Yield Sacrifice
0% 2% 4% 6%0%
200%
400%
600%
800%
1000%
1200%
Tensile Strength Toughness
Elongation
Reduction from Maximum Yield
Impr
ovem
ent i
n M
echa
nica
l Pro
pert
ies
By-product of table sugar industry
54% produced in North Dakota and
Minnesota annually
Moisture Content = 71%
2: Sugar Beet Pulp Ethanol
Challenges for Cellulosic Ethanol“Typical” Biomass Beet Pulp
Harvest New Equipment Nothing Extra
Transportation Expensive Nothing Extra
Storage Challenge Nothing Extra
Hydrolysis (Pretreatment)
Expensive pretreatment and enzymes
No pretreatmentInexpensive enzymes
Fermentation OK More of a challenge
3: Mixed Perennial Feedstocks
?
Gretz, Warren; NREL
Paradeis, Breanna; NDSU Range Science.
Switchgrass MonocultureDiverse Species Perennials
3: Mixed Perennial Feedstocks
Target Species•Wheatgrass -Crested, Tall, Intermediate•Switchgrass
-Sunburst, Trailblazer•Smooth Brome•Wildrye •Alfalfa
“Weeds”•Green Needlegrass •Yellow Sweet Clover•Wild Buckwheat•Flixweed•Goat's Beard•Yarrow•Field Pennycress
Brome
All photos via Bugwood.org: Dave Powell, USDA Forest Service; Ohio State Weed Lab Archive, The Ohio State University; Mary Ellen (Mel) Harte;Charles T. Bryson, USDA Agricultural Research Service.
Ethanol Yields from Mixed Grasses
0
100
200
300
400
500
600
700
0
20
40
60
80
100
120
Tall
Whe
atgr
ass
Switc
hgra
ss (D
ak)
Int.
& T
all W
heat
gras
s
Switc
hgra
ss (S
B) &
Tal
l W
heat
gras
s
Inte
rmed
iate
Whe
atgr
ass
Mag
nar B
asin
&
Mus
tang
Wild
rye
Alfa
lfa, S
wee
t Clo
ver
&
Int.
Whe
atgr
ass
Switc
hgra
ss (S
B) &
Big
B
lues
tem
Switc
hgra
ss (S
B)
Switc
hgra
ss (S
B) &
M
usta
ng W
ildry
e
Gal
lons
per
acr
e
Gal
lons
per
ton
Gal/dry ton
Gal/Ac
Biomass yield data provided from Q. Xue and P. Nyren for biomass harvested from irrigated plots at the Williston NDSU REC
Perennial Grass Mixtures
0
20
40
60
80
100
0 20 40 60 80
Sacc
hari
ficat
ion
Yie
ld [%
]
Time [h]
Tall Wheatgrass (W)S:W, 1:2S:W, 2:1Switchgrass (S)
4. Biobased Energy Course
Motivation• Environmental• Economic• Political
Resources• What?• Where?• How much?• How?
Technologies• Corn Ethanol• Biodiesel• Thermochemic
al• Sugar Platform• Biogas
Thank you!
Collaborators
ABEN• N. Nahar• A. Manamperi• R. Rorick• E. Monono• Dr. D.
Wiesenborn• Dr. Q. Xue• C. Sietsema• Dr. B. Karki
ME• Dr. C. Ulven• M. Fuqua• S. Rathnasinghe
CFS• Dr. K.C. Chang
NRM• Dr. M. Biondini• Paul Nyren• Brea Paradeis